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Unifying Spaces: Transforming Flats into a Single Home (Amalgamation and Deconversion)

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The intricate tapestry of urban landscapes tells the tale of human adaptation over centuries. Historical townhouses, particularly those opulent Victorian homes, are rich chapters in this narrative. Erected during an era where spacious, multi-room dwellings were a symbol of prosperity, they exuded an allure of magnificence. Yet, as urban demands intensified and housing needs shifted, these grand edifices were often dissected into individual flats – a pragmatic solution for an increasingly crowded and transient population.

View of Living of Kempe Road in NW London converting two flats to one house by RISE Design Studio
Kempe Road in NW London converting two flats to one house by RISE Design Studio

Fast forward to the present day, and the ethos is shifting once again. With a resurgence of interest in sustainable living and the need for spaces that evoke a sense of connection and continuity, there’s a renewed appetite for homes that echo the grandeur of yesteryears while incorporating the energy efficiencies of tomorrow.

For the contemporary homeowner, the allure of a deconverted space goes beyond mere nostalgia or the romanticism of living in a restored Victorian abode. It’s about reclaiming and repurposing space in a manner that resonates with today’s ethos. We’re seeing a growing tribe of homeowners who are not just looking for size or scale, but spaces that breathe, connect, and are in harmony with nature. They want homes that are both a nod to the past and a leap into the future.

This trend is not just an architectural fad. It’s rooted in deeper shifts in societal values and priorities. The modern-day homeowner is increasingly environmentally conscious. There’s an understanding that the choices we make in our homes today will have repercussions for generations to come. Thus, the deconversion process isn’t just about merging walls or restoring old fireplaces; it’s about integrating state-of-the-art sustainable technologies, ensuring energy efficiency, and reducing the carbon footprint of the dwelling. It’s about creating a home that’s warm in winter without being reliant on fossil fuels, a home that’s cool in summer without the need for power-hungry air conditioning.

In my tenure at our small contemporary design-led architecture studio, I’ve had the privilege of guiding numerous homeowners on this transformative journey of deconversion. Each project is a delicate dance of honouring the historical integrity of the space while weaving in modern, sustainable design elements. It’s an intricate process, replete with challenges, but the end result – a harmonious blend of the old and the new, the timeless and the innovative – is invariably worth the effort.

1. The First Step: Evaluating the Current State

Commencing a deconversion journey without a clear understanding of the current state of the property is much like setting sail on tumultuous seas without a compass. This primary step is vital not only from a design perspective but also from a legal and regulatory standpoint.

Historical Context and Alterations

Victorian homes, with their intricate detailing and grand designs, were often subjected to multiple alterations over the decades. The economic ebbs and flows, combined with the changing dynamics of urban living, meant that these dwellings often morphed to fit the needs of their inhabitants. A building that started as a singular grand family home might have been subdivided into multiple flats or bedsits to cater to the housing demand of different eras.

Interestingly, not all these modifications were done with the requisite permissions. In many cases, homeowners or landlords might have made these changes informally, without seeking the appropriate approvals from local authorities. While this might seem like a minor oversight, it bears significant implications for the present homeowner. If the property is still officially registered as a singular dwelling, despite its physical fragmentation, it can indeed simplify the deconversion process.

Navigating the Maze of Permissions and Regulations

Regardless of the historical context, it’s paramount to engage with your local council early on. This is not merely a box-ticking exercise. Engaging with the local council can offer clarity on several fronts:

  • Legal Status: Determine the official status of your property. Is it listed as a singular home or multiple dwellings? This information will serve as the foundation for your deconversion journey.
  • Architectural Integrity: A dialogue with the local council can help you glean insights into the architectural significance of the building, its history, and any heritage restrictions that might be in place. Victorian homes, given their age and cultural significance, might be subject to certain conservation regulations.
  • Planning Permissions: Based on the current state and official status of the building, you’ll need to understand what permissions are required for deconversion. This might range from simple internal modifications to more extensive structural changes.
  • Utilities and Services: Over time, divided homes often have utilities (like water, gas, and electricity) that are split among the units. It’s essential to assess these divisions and understand the implications of reverting them back to serve a singular residence.
  • Safety and Compliance: Older homes can sometimes harbour hidden issues – be it in the form of outdated wiring, plumbing anomalies, or structural wear and tear. Ensuring the safety and compliance of the home with modern standards is of utmost importance.

Seeking Professional Guidance

While it’s feasible to embark on the initial evaluation yourself, seeking the guidance of professionals – architects, surveyors, or heritage consultants – can be invaluable. They bring a wealth of experience and can preempt potential roadblocks, making the deconversion journey smoother and more efficient.

In conclusion, as the adage goes, ‘Well begun is half done.’ A thorough evaluation of the current state sets the tone for the subsequent stages of deconversion. It ensures that the journey back to grandeur is not just a romantic endeavour but one rooted in clarity, legality, and practicality.

2. Do You Need Planning Permission?

The allure of restoring a grand old home to its original state often comes with the assumption that, since you’re simply reverting to its initial design, there’s no need to get embroiled in the maze of permissions. Unfortunately, the reality isn’t always so straightforward. The act of deconversion, while it may sound simple, involves a slew of considerations, both architectural and regulatory.

Historical Overview: The 1990 Act and Beyond

The 1990 Town and Country Planning Act, which you may be familiar with, outlines the general permissions required for building and development works in the UK. Under this act, many internal and external alterations and extensions, often don’t require formal planning permission. This is termed as “permitted development rights”.

However, the landscape of urban planning and housing has evolved since then. In the year 2000 and beyond, with rising housing demands and urban densification, local councils became increasingly cautious of developments that led to a loss of housing units. The deconversion of a property from multiple flats to a singular residence, naturally, falls under this bracket.

Deconversion: A Balancing Act

While the idea of bringing a property back to its former glory is romantic, one has to navigate the fine balance between personal desires and community needs. Here are a few pivotal points to consider:

  • Loss of Housing: Local councils, especially in densely populated areas, are keen to ensure that there’s no significant loss of housing stock. If a building is currently home to multiple families and its deconversion would displace them, this can be a crucial factor in the decision-making process.
  • External Modifications: If your deconversion involves changes to the external façade, roofing, or any extensions, it will most likely require planning permission. Victorian homes, particularly those in conservation areas or listed buildings, have strict guidelines to preserve their historical and architectural integrity.
  • Infrastructure and Utilities: Combining utilities which had been separated – such as gas, water, and electricity – might need permissions, especially if they involve significant ground or structural work.
  • Local Housing Needs: This is a nuanced aspect that can vary from one council to another. If your area is facing a housing shortage or has specific goals for housing density, the council might be less inclined to approve a deconversion. It’s crucial to understand the local housing strategy and policies.

Professional Consultation and Pre-Application Advice

One way to navigate this complex terrain is to opt for a pre-application consultation with your local council. This process involves discussing your plans with the planning department before officially submitting your application. It offers a chance to understand any potential issues or concerns the council might have and provides an opportunity to make modifications before the formal submission.

Furthermore, enlisting the services of a seasoned architect can be invaluable. Their experience with the local regulations, coupled with a deep understanding of architectural possibilities, can guide you through the process with greater clarity and confidence.

In conclusion, while the path of deconversion is laden with multiple regulatory considerations, it’s not an insurmountable challenge. With the right guidance and a clear understanding of the local landscape, restoring a property to its singular grandeur can be both a feasible and deeply rewarding endeavour.

3. Housing Needs and Local Policies: Navigating Varied Terrains

While the broader strokes of housing and planning laws in the UK have a national framework, the detailed application of these laws is often left to local councils. This means that each council, driven by its own unique socio-economic realities, housing needs, and historical contexts, might have different policies regarding deconversion. Let’s delve into the varying terrains of housing policies across different boroughs, using London as a prime example.

Understanding London’s Mosaic of Housing Policies

London, with its rich tapestry of history, architecture, and socio-economic diversity, is a prime example of how varied local housing policies can be. Here’s a brief snapshot:

  • Kensington and Chelsea (RBKC): A borough with a rich history and some of the country’s most prestigious architectural gems, Kensington and Chelsea have always been protective of their residential stock. The council is often wary of any developments or alterations that might decrease the number of available housing units. This caution is borne out of a combination of preserving the borough’s character and ensuring a diverse mix of residents. Therefore, planning permission might be necessary for even minor deconversions, especially if it involves external modifications or loss of housing.
  • Westminster: Like RBKC, for even the slightest deconversions in Westminster, securing planning permission could be advisable, particularly if it involves changes to the exterior or impacts housing availability.
  • Camden: While still rooted in history, Camden has a more eclectic mix of architectural styles and a diverse population. As such, the council’s approach towards deconversions, especially for combining just two flats, might be more lenient. However, it’s still essential to be wary of localised regulations, especially if the property falls within a conservation area or if the proposed changes might have a broader impact on the local community.
  • Brent: Similar to Camden, the borough of Brent is generally more permissive when it comes to amalgamation.

Researching and Engaging: A Two-Pronged Approach

Given these varied terrains, adopting a dual strategy is imperative:

  • Research: Begin by diving deep into the specific housing policies of your borough. Most councils have their housing strategies, conservation area policies, and planning guidance available online. Look for any specific mentions of deconversions or the amalgamation of flats.
  • Engage: No amount of online research can replace direct engagement. Reach out to the planning department of your borough for a pre-application consultation. This not only helps in understanding their stance but also builds a rapport, which can be beneficial during the formal application process.

Other Variables to Consider

While the borough’s policy stance is crucial, it’s also essential to consider:

  • Local Housing Demand: A borough facing acute housing shortages might be less inclined to approve deconversions, even if their policies seem lenient.
  • Community Feedback: Neighbours and local community groups can influence the council’s decision. Engage with them early on to understand their concerns and, if possible, integrate their feedback into your plans.
  • Historical and Architectural Value: Properties with significant historical or architectural importance might have added layers of restrictions, regardless of the borough’s general stance.

In conclusion, the labyrinth of local housing policies might seem daunting at first, but with meticulous research and proactive engagement, it’s possible to navigate this terrain successfully. Understanding the unique pulse of each borough and aligning your project with local needs and sentiments is key to a smooth deconversion process.

4. Making a Case with a Lawful Development Certificate

Navigating the intricacies of housing policy and local planning regulations is often a complex dance, especially when you’re dealing with historical properties that might have seen a range of alterations and uses over their lifetime. In situations where a property has been functioning differently from its official status, the Lawful Development Certificate (LDC) emerges as a powerful tool. It’s designed to provide a legally binding determination of a property’s lawful use or development status. Let’s delve deeper into the LDC and understand how it can be utilised in the process of deconversion.

What is a Lawful Development Certificate?

A Lawful Development Certificate is a formal statement issued by the local planning authority, confirming the lawfulness of a property’s existing use, operational development, or failure to comply with a condition or limitation. In the context of deconversion, it serves to legitimise a singular use that has existed continuously for a particular period, even if it’s at odds with the property’s official designation.

When Should One Consider an LDC?

  • Existing Use for Over Four Years: If a property has been functioning as a single unit without the necessary permissions for over four continuous years, then this uninterrupted use can be legalised through an LDC.
  • Failure to Adhere to Conditions: If certain conditions or limitations were attached to previous planning permission and they’ve been breached for over ten continuous years, an LDC can be pursued.

Building a Strong Case: Steps to Obtain an LDC

  • Gathering Solid Evidence: One of the key factors in securing an LDC is proving the continuous use or the breach. Evidence might include utility bills, rental agreements, postal records, electoral register entries, affidavits from neighbours, and photographic evidence.
  • Application Process: Begin by filling out the necessary forms available from your local council’s planning department. Alongside the form, submit all the evidence that corroborates the use you’re claiming.
  • Council Review: Once submitted, the council will review the application and evidence. They might also conduct site visits and interview neighbours or local community members to verify the claims.
  • Decision: If the evidence is found to be compelling and aligns with the council’s criteria, an LDC will be granted, certifying the existing use or development as lawful.

The Benefits of Securing an LDC

  • Legal Clarity: An LDC provides a clear, definitive statement on the lawfulness of the property’s use, shielding homeowners from potential enforcement actions in the future.
  • Ease in Property Transactions: If you decide to sell the property, having an LDC can simplify the transaction process, as it eliminates any ambiguity regarding the property’s lawful use.
  • Peace of Mind: By ensuring that the property’s use aligns with the legal framework, homeowners can have peace of mind and focus on enjoying their restored space.

In summary, the Lawful Development Certificate serves as an essential instrument in the deconversion process, particularly for properties with a complex usage history. By meticulously gathering evidence and liaising with the local planning authorities, homeowners can legitimise their property’s use, ensuring a smooth and hassle-free deconversion journey.

5. Evaluating The Odds: Chances of Successful Deconversion

Undertaking a deconversion (amalgamation) can be a formidable endeavour, layered with multifaceted considerations and potential roadblocks. While the idea of restoring a property to its original splendour is an enticing one, the path to realisation is seldom linear. To grasp the prospects of a successful deconversion, it’s vital to evaluate several intertwined factors, each contributing to the larger picture of viability.

1. Restoration of Original Use

Importance: Reverting a property to its original state can be easier than significantly altering its structure. A building with a history of singular use, subsequently converted into multiple units, might find fewer obstacles when deconverted.

Challenges: Historical modifications might have drastically altered the property’s layout and structural integrity. Unearthing the original plans or accessing historic data can prove instrumental.

Impact on Success: If the property’s original design and structure are largely intact, this bodes well for the deconversion process.

2. Adherence to Space Standards for Family Homes

Importance: Ensuring a comfortable living environment is paramount. Deconverting should not compromise the space standards set for family homes, particularly in terms of room sizes, natural light, and ventilation.

Challenges: Some properties, when divided into flats, may have been modified to optimise smaller living spaces. Such alterations can make it challenging to restore rooms to their original, spacious configurations.

Impact on Success: A successful deconversion should align with contemporary expectations of living standards. Homes that can naturally adhere to or be adapted to meet these standards have higher success rates.

3. Consideration of Market Demands in the Area

Importance: Understanding the housing market in the vicinity is crucial. Are larger, singular homes in demand, or is there a predominant preference for individual flats?

Challenges: In areas where flats are in higher demand due to urbanisation or increased rental needs, deconversion might face market resistance.

Impact on Success: Ensuring that the deconverted property aligns with market demands can significantly increase its value and appeal, thereby enhancing the chances of a fruitful endeavour.

4. Ensuring the Non-Loss of Affordable Rental Units

Importance: With urban areas facing housing shortages, especially affordable rental units, it’s vital to weigh the societal implications of deconverting a property.

Challenges: Local councils might be resistant to deconversions that result in a decrease in affordable housing stock, particularly in areas with pronounced housing pressures.

Impact on Success: If a property’s deconversion leads to the loss of affordable units, obtaining permissions might be more challenging. Ensuring a balance or proposing alternate solutions can tip the scales in favour of a successful deconversion.

In Conclusion: Evaluating the odds of successful deconversion requires a holistic view, considering not just the architectural and logistical challenges, but also societal needs and market dynamics. While each property is unique, understanding these core factors can equip homeowners with the knowledge needed to navigate the deconversion process strategically, maximising their chances of success.

6. Precautions Before the Build

Launching a deconversion project is a significant undertaking, with the allure of crafting a unique, spacious residence from the patchwork of previously separated flats. Yet, beyond the sheer architectural and aesthetic considerations lies a web of regulatory intricacies that mandate careful planning. Ignoring these can lead to costly repercussions, both legally and financially. Here’s a comprehensive guide to the precautions one must consider before embarking on the actual construction phase.

1. Understand the Status of Your Building

Is it Listed? For buildings of historical or architectural significance, obtaining Listed Building Consent is non-negotiable. Altering such a structure without appropriate permissions can lead to severe legal consequences.

Conservation Areas: If your property resides within a conservation area, there might be additional restrictions on development to preserve the character and appearance of the area.

2. Building Regulations Approval

Beyond planning permissions, it’s essential to ensure that your deconversion project aligns with current building regulations. These regulations ensure that any building work is safe, energy-efficient, and accessible.

Why it matters: Even if your project doesn’t necessitate planning permission, building regulations approval is often still required. It covers aspects like fire safety, insulation, ventilation, and structural integrity.

3. Environmental Considerations

If your property is located near a watercourse or in an area of natural significance, there might be additional environmental permits and assessments to consider.

Flood Risk: Is the property in a flood-prone area? If so, assessments and precautions will be necessary to ensure the safety and sustainability of the build.

Ecological Impact: Before commencing work, ascertain if the construction might affect local wildlife or habitats. Mitigation strategies might be necessary to minimise any negative impacts.

4. Opting for Planning Permission

Even if the initial assessment suggests that planning permission isn’t strictly necessary, it might be prudent to opt for it regardless.

Benefits:

  • Flexibility: This provides a broader canvas and might allow for more extensive alterations than initially anticipated.
  • Security: It reduces the risk of future legal challenges or disputes with the local council.
  • Resale Value: Having all necessary permissions in place can enhance the property’s market appeal and value.

5. Engage with Neighbours and the Community

Although not strictly a legal requirement, it’s a considerate gesture to inform neighbours of impending construction. This can mitigate potential disputes or concerns and foster a sense of community understanding.

Feedback Loop: Engaging early can provide valuable insights or feedback, which might shape the trajectory of the project in a more community-friendly direction.

In Conclusion: The thrill of initiating a deconversion project is undeniable, but the foundation of any successful build lies in its meticulous planning. By heeding the above precautions, homeowners can ensure that their dream project doesn’t become mired in legal complications or unforeseen challenges, paving the way for a smoother construction phase and a delightful end result.

7. The Architect’s Perspective: Seeking Professional Guidance

Embarking on the journey of deconversion can feel akin to navigating a labyrinth, with its myriad twists and turns. However, this complexity, while daunting, is not insurmountable, especially with the guiding hand of professional expertise. Architect practices, such as RISE Design Studio, play a pivotal role in transforming what could be a formidable challenge into a manageable and even enjoyable process. Here’s why seeking professional guidance is indispensable:

1. Creative Problem-Solving

Innovative Solutions: A good architect doesn’t just follow guidelines; they think creatively. They can find innovative solutions to design challenges, ensuring your vision is realised without compromising on regulatory compliance.

Maximising Potential: An architect can help you make the most of your space, suggesting alterations that you might not have considered, which can significantly enhance the functionality and aesthetic appeal of your home.

2. Expertise in Local Building Regulations

Local Insights: Architects bring a wealth of knowledge about local building regulations. They can advise on the specifics of what’s permissible in your area, ensuring that your project adheres to all necessary legal standards.

Navigating Complexities: Given the complexity of building regulations, having a professional who can interpret these rules and how they apply to your specific project is invaluable.

3. Tailored Advice

Individual Circumstances: Every deconversion project is unique. A professional architect can provide advice that is specifically tailored to your individual circumstances and needs.

Personal Touch: Beyond the technical aspects, architects can align the design with your personal style and preferences, ensuring the end result feels like a true reflection of you.

4. Liaising with Local Authorities

Smooth Process: Architects can act as intermediaries between you and the local authorities. They understand the language and requirements of planning applications and can often expedite the process.

Avoiding Pitfalls: Their experience means they are adept at foreseeing potential objections or issues, allowing for preemptive solutions that avoid delays or rejections.

5. Quality Assurance

Attention to Detail: From the initial sketches to the final touches, architects are focused on quality. Their oversight can ensure that the construction process adheres to the highest standards.

Future-proofing: Good architectural guidance not only meets your current needs but also considers the longevity and adaptability of the space for future requirements.

6. Stress Reduction

Project Management: With an architect overseeing the project, the burden of managing various contractors and ensuring timelines are met is significantly reduced.

Peace of Mind: Knowing that your project is in the hands of professionals can provide immense peace of mind, allowing you to focus on the excitement of seeing your vision come to life.

In Summary: The role of an architectural firm in the process of deconverting flats into a singular, energy-efficient home cannot be overstated. It’s about much more than just blueprints and building codes; it’s about crafting a living space that resonates with its inhabitants, respects its surroundings, and stands the test of time. By leveraging the expertise of professionals like those at RISE Design Studio, homeowners can embark on this transformative journey with confidence, creativity, and clarity.

8. The Green Blueprint: Incorporating Low Energy and Reduced Carbon Design

Deconversion, or the process of converting multiple flats back into a singular residence, offers a golden opportunity to amalgamate the best of the old with the new, specifically in terms of energy efficiency and sustainable living. Being an advocate of sustainable architecture, I firmly believe that incorporating low energy designs into deconversion projects not only preserves the historical integrity of a building but also paves the way for a future-proof home. Here’s a deeper dive into the aspects linked to this sustainable approach in the context of deconversion:

1. Reusing and Recycling Materials

Conserving Heritage: Reusing materials from the original structure can maintain the authentic look and feel of the building while reducing the carbon footprint associated with manufacturing new materials.

Reduced Waste: By prioritising the recycling of old materials during the deconversion process, there’s a direct reduction in construction waste that might otherwise end up in landfills.

2. Thermal Efficiency

Insulation: Older buildings often lack proper insulation. As walls are reconfigured during deconversion, there’s an opportunity to integrate modern insulating materials that significantly improve thermal efficiency.

Windows and Doors: Retrofitting with double or triple-glazed windows and well-sealed doors can prevent heat loss, reducing the energy required for heating.

3. Renewable Energy Integration

Solar Panels: The expansive roofs of these buildings, once flats, provide ample space for solar panels, allowing homeowners to generate their own electricity.

Ground Source Heat Pumps: Deconversion often involves substantial groundwork. This presents a chance to integrate ground source heat pumps, an efficient way to heat homes using the earth’s consistent temperatures.

4. Sustainable Water Management

Rainwater Harvesting: Systems can be incorporated into the design, enabling homeowners to collect, store, and use rainwater, reducing the demand on local water supplies.

Greywater Recycling: Water from sinks, showers, and baths can be treated and reused for non-potable purposes like flushing toilets or irrigation.

5. Improved Ventilation

Natural Ventilation: Older buildings, while majestic, often suffer from poor ventilation. Design modifications during deconversion can introduce natural ventilation pathways, improving air quality and reducing reliance on mechanical systems.

Heat Recovery Systems: Modern ventilation units with heat recovery can extract warmth from outgoing stale air and use it to pre-heat incoming fresh air, ensuring an energy-efficient home.

6. Emphasis on Sustainable Interiors

Eco-friendly Materials: The choice of paints, finishes, and flooring can all be aligned with eco-friendly principles, ensuring that the home’s interiors are as green as its structural elements.

Energy-efficient Appliances: As part of the modernisation during deconversion, there’s the option to choose appliances that adhere to the latest energy efficiency standards.

7. Sustainable Landscaping

Native Plants: Once the deconversion is complete, consider landscaping with native plants, which typically require less water and care than exotic species.

Permeable Surfaces: Opt for permeable paving to reduce rainwater runoff and replenish groundwater.

In Conclusion: The process of deconversion offers a fresh canvas on which to paint a sustainable future. By considering low energy and reduced carbon designs, not only can we preserve the legacy of our architectural past, but we can also ensure that these majestic structures are resilient, efficient, and in harmony with our ever-evolving understanding of sustainable living.

How RISE Design Studio can help you?

Located in London with offices in Maida Vale and Fitzrovia, RISE Design Studio is a RIBA chartered architectural practice. We specialise in crafting innovative design and planning solutions, particularly in the realms of residential extensions, conversions, and brand-new home designs. Our mission is to assist homeowners in shaping spaces they truly love.

Should you wish for our expertise on your deconversion journey, please feel free to reach out.

If you would like to talk through your project with the team, please do get in touch at mail@risedesignstudio.co.uk or give us a call at 020 3290 1003

Contact us

RISE Design Studio Architects company reg no: 08129708 VAT no: GB158316403 © RISE Design Studio. Trading since 2011.

Understanding the New Era of Energy-Efficient Architecture in the UK

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The gravitation towards low energy and low embodied carbon designs has never been more pertinent. The UK, like many countries globally, is undergoing a significant shift in its approach to building energy performance. This article delves deep into understanding these changes, particularly from a landlord’s perspective.

View of the kitchen dining space in our Queen's Park House project in NW London by RISE Design Studio
View of the kitchen dining space in our Queen’s Park House project in NW London by RISE Design Studio

1. The Cornerstone: Energy Performance Certificates (EPCs)

EPCs, for those unfamiliar, play a pivotal role in the UK’s housing market. As a mandatory provision for rental properties, they offer potential tenants a window into a property’s energy efficiency. In simpler terms, a higher EPC rating can significantly increase the property’s allure to prospective tenants, acting as a beacon for those conscious of both their environmental impact and energy bills.

2. Navigating the New Building Regulations

The winds of change ushered in revamped Building Regulations on June 15th, 2022. Of these, landlords and developers must pay heed to:

  • Part L: Zeroing in on thermal performance.
  • Part F: Concentrating on ventilation.
  • Part O: A brand-new addition, highlighting overheating.

While these updated regulations predominantly focus on new constructions, existing properties undergoing major renovations aren’t exempt.

3. SAP’s Evolution: The New Assessment Methodology

The SAP assessment methodology’s technical upgrade is pivotal. Gone are the days when fossil fuel-based heating methods ruled the roost. The contemporary approach places energy-conserving building materials and non-fossil fuel heating methods on a pedestal.

4. The Changing Landscape for Landlords

From my interactions with landlords and fellow architects, it’s evident that these changes carry profound implications:

  • Transition in Heating Paradigms: Traditional gas boilers, once champions of heating, are now fading into the background, making way for sustainable alternatives.
  • The Advent of SAP10.2 Software: Elmhurst Energy‘s response to the shifting landscape. This sophisticated software transcends conventional energy cost assessments, capturing the essence of new builds’ energy efficiency.

5. The Legal Tapestry

Developers, brace yourselves! The new regulations are now enshrined in law. From conceptualising to habitation, these metrics are non-negotiable. Non-compliance is not only detrimental to our environment but can lead to legal ramifications.

6. EPC Scores: The Silent Influencers

Having been deeply entrenched in the property world, it’s clear that EPC scores are gaining traction. With mounting concerns over energy consumption, these scores heavily influence rental or purchase decisions, serving as the unsung heroes (or villains) of a property’s desirability.

7. The Economic Lens: Impact on Property Valuations

Anticipating market trends suggests a potential uptick in rent or sale prices for properties boasting EPC ratings of band C or higher. As the market plays catch-up, landlords must discern the long-term financial benefits of aligning with these regulations.

8. The Looming Shadow of Rising Energy Costs

The projections are stark. With the Ofgem fuel price cap speculated to soar above £3,000 by this year’s end and likely staying above £2,600 till late 2023, the clamour for energy-efficient homes will grow louder.

9. Tackling Fuel Poverty Head-On

Fuel poverty is an impending crisis, with countless UK households teetering on its brink. As architects and landlords, our responsibility extends beyond bricks and mortar. By championing energy-efficient properties, we can play a pivotal role in alleviating this looming challenge.

Conclusion: The Road Ahead for Sustainable Architecture

The architectural realm’s trajectory has never been clearer. With the new Building Regulations and SAP assessment shifts, the paradigm has undeniably changed. Landlords must not only adapt but also champion this change, ensuring their properties not only stand tall in the market but also embody the spirit of sustainability.

From my two-decade vantage point, I believe that marrying contemporary design with energy efficiency is the future – a future that is not only sustainable but also aesthetically breathtaking.

If you would like to talk through your project with the team, please do get in touch at mail@risedesignstudio.co.uk or give us a call at 020 3290 1003

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RISE Design Studio Architects company reg no: 08129708 VAT no: GB158316403 © RISE Design Studio. Trading since 2011.

Do I need an architect for an extension? The benefits, and alternatives, explained

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When it comes to embarking on a house extension project, one of the first questions that arises is whether or not to hire an architect. Opinions on this matter are often divided, and it usually boils down to budget considerations. Bringing in an additional professional service can increase costs, but it’s important to recognise the value they bring. This guide aims to shed light on the decision-making process, exploring alternative options and explaining the benefits an architect can offer.

Architects can add value to your project
Architects can add value to your project

The Need for an Architect: Exploring Alternatives

While architects are often the go-to professionals for design services, they are not the only option available. Depending on the scale and complexity of the extension, other routes may be more suitable.

For very small and simple extensions, a builder experienced in this type of work may be capable of providing the design. Alternatively, if you feel confident and have the necessary skills, you could even attempt the design yourself. However, if you have more ambitious ideas, such as glass extensions or unique requirements, involving an architect becomes crucial.

To make an informed decision about whether or not you need an architect, let’s explore the various types of house design professionals and what they can offer.

The Value of an Architect: What They Bring to the Table

When discussing architects, it’s essential to understand their qualifications and expertise. The title “architect” is reserved for professionals who have completed seven years of training and are registered with the Architects Registration Board (ARB). Most architects will also be Chartered Members of the Royal Institute of British Architects (RIBA).

While there’s no legal requirement to involve an architect in your extension project (unlike in some other European countries), there are several compelling reasons to consider hiring one. An architect’s training and experience make them particularly valuable for those new to the world of extensions or dealing with complex criteria and challenging sites.

By using the latest drawing software Architects can demonstrate many options that best meet your Client Brief, are sympathetic to context and meet your project budget
By using the latest drawing software Architects can demonstrate many options that best meet your Client Brief, are sympathetic to context and meet your project budget

Here are the benefits an architect can provide for your extension project:

  1. Design Excellence: Architects possess a unique blend of creativity, technical expertise, and problem-solving skills. They excel at translating a client’s vision into innovative and functional designs that inspire and transform spaces.
  2. Maximising Existing Space: Architects are trained to assess existing spaces and make the most of them. They can optimise the use of available space in creative and innovative ways, ensuring functionality and efficiency.
  3. Sustainable Design Approach: In an era where environmental concerns are paramount, architects from sustainably-focussed practices prioritise environmentally responsible design solutions. They integrate energy efficiency, renewable resources, and low embodied carbon principles into their designs, contributing to a sustainable future.
  4. Plot Maximisation: Architects understand how to make the best use of the plot your house occupies. They consider factors such as orientation, views, and privacy to create designs that harmonise with the site.
  5. Fresh Ideas and Solutions: Drawing from their training and experience, architects can offer ideas and solutions you may not have considered. Their creative input can elevate your project and provide unique design concepts.
  6. Knowledge of Construction Methods and Technologies: Architects stay up-to-date with the latest construction methods and technologies. They can incorporate sustainable practices, energy-efficient systems, and innovative building materials into your design.
  7. Bridging the Gap between Vision and Reality: Architects are skilled at translating your brief into tangible designs. They have the expertise to balance your requirements, budget, and aesthetic preferences to create a design that meets your expectations.
  8. Industry Connections: Architects have established relationships with reliable builders and tradespeople. They can recommend contractors they have previously worked with, ensuring a smoother collaboration and better project outcomes.
  9. Compliance and Professionalism: Architects adhere to a statutory code of practice and carry Professional Indemnity Insurance. They are knowledgeable about the planning system, building regulations, and can guide you through the application process.
  10. Well-being and Sustainability: Architects from design-led practices prioritise occupant well-being and sustainability. They consider factors like natural light, indoor air quality, and biophilic design principles to create spaces that enhance comfort, productivity, health, and happiness.
  11. Expertise in Low Energy Design: Reducing energy consumption and minimising carbon emissions are crucial in the fight against climate change. Architects from design-led, sustainable practices possess specialised knowledge in low-energy design strategies. They incorporate passive design principles, optimise natural light, ventilation, and thermal insulation, creating energy-efficient buildings that prioritise occupant comfort.
  12. Attention to Detail and Craftsmanship: Architects are able to dedicate meticulous attention to detail and craftsmanship. They collaborate closely with contractors, and artisans to ensure the design intent is executed with precision, resulting in durable, practical and beautiful buildings.
  13. Contextual and Community Engagement: Architects appreciate the significance of context and community in architectural design. They undertake thorough site analyses, considering factors such as climate, topography, cultural heritage, and social context. By engaging with the local community and stakeholders, they create buildings that harmonise with their surroundings and reflect the unique identity of the community.
  14. Recognition and Awards: Architects from award-winning practices have a proven track record of excellence. Their designs are recognised and celebrated for their innovation, sustainability, and contribution to the field of architecture. Engaging with such architects allows clients to benefit from their wealth of experience, expertise, and industry recognition, ensuring that their project stands out and exceeds expectations.

By working with an architect, you benefit from their ability to offer fresh perspectives, transform your vision into reality, and navigate the complexities of design and construction.

We at RISE Design Studio use drawing software that can be exported to your smartphone or tablet so that you can explore the proposals in 3D
We at RISE Design Studio use drawing software that can be exported to your smartphone or tablet so that you can explore the proposals in 3D

Addressing Concerns: Cost and Misalignment

The primary concern for many considering an architect is the cost. Hiring an architect will involve allocating a portion of your budget to the design phase, typically ranging from 5% to 18% of construction costs depending on the level of involvement. However, the value they bring to the project can outweigh the additional expense. Moreover, a skilled architect can help identify cost-saving opportunities and optimise the overall project budget.

Misalignment between the client’s vision and the architect’s design choices is another potential concern. However, this can be mitigated by ensuring clear communication and finding an architect who understands your needs and preferences. By reviewing their previous work and speaking with their previous clients and discussing your expectations upfront, you can find a compatible architect who respects your input.

Flexibility in Service Options and Clarity in Project Requirements

Architects offer various service options, allowing you to tailor their involvement to suit your project’s needs. You don’t necessarily have to opt for a full-service package; instead, you can choose the level of engagement that fits your requirements and budget.

To ensure success, it’s crucial to be clear about your project goals, needs, and budget from the outset. Open and transparent communication with your architect will help them understand your vision and deliver a design that meets your expectations.

Red Arches House, Kensal Rise, North West London
Red Arches House, Kensal Rise, North West London

Considering the Alternatives

While an architect may be the ideal choice for many extension projects, it’s worth exploring alternative options to find the best fit for your needs.

  1. Architectural Technologist: An architectural technologist focuses on the design, production, and performance of buildings through the integration of technology. They can provide innovative designs, submit planning applications, coordinate trades, and project manage the extension. It’s important to ensure they have experience and expertise in the type of design you’re seeking.
  2. Draughts-person: A draughts-person can transform your ideas and sketches into precise plans and technical drawings. While they are generally cheaper than architects, they may lack the same breadth of experience and design innovation.
  3. Builder: Some builders are capable of producing simple sets of house plans. However, their design capabilities and experience may be limited, so caution is advised unless you have seen their previous work and spoken to past clients.
  4. Design and Build Firms: Design & Build Contractors handle the design aspect as part of their services as well as the build. This can streamline the process, but it’s essential to ensure their design aligns with your vision and requirements.
  5. DIY Design: Designing your own extension can save money on design fees, and you have complete control over the outcome. However, it’s important to consider the complexity of the planning process, building regulations, and the need for detailed plans. Software packages can assist in creating professional designs, but thorough research and understanding of regulations are crucial.

Conclusion

When deciding whether or not to involve an architect in your extension project, it’s essential to consider the specific needs and requirements of your project. While an architect brings expertise in design, sustainability, and overall project management, alternative options may be suitable for simpler extensions or budget-conscious clients.

The value an architect (from a sustainably focussed practice) brings lies in their ability to create exceptional designs that inspire and prioritise sustainability, well-being, and craftsmanship. Their expertise in low-energy design, attention to detail, and holistic approach sets them apart, resulting in buildings that leave a positive impact on the environment, occupants, and communities they serve.

Ultimately, the choice of whether to hire an architect for an extension project depends on your budget, project complexity, and the level of creativity and expertise you desire.

If you would like to talk through your project with the team, please do get in touch at mail@risedesignstudio.co.uk or give us a call on 020 3290 1003

Contact us

RISE Design Studio Architects company reg no: 08129708 VAT no: GB158316403 © RISE Design Studio. Trading since 2011.

What is EnerPHit? Is it right for my home retrofit project?

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EnerPHit aims to achieve similar levels of energy efficiency as Passivhaus for retrofitted buildings. In this guide, I will provide you with a comprehensive overview of EnerPHit, its requirements, the benefits it offers, and the considerations you need to keep in mind if you are planning a retrofit project.

EnerPHit vs. Passivhaus

While Passivhaus standards are primarily applied to new builds, EnerPHit focuses on retrofitting existing properties. Retrofit refers to a form of renovation aimed at significantly reducing energy consumption and improving the thermal performance and comfort of a home. Unlike Passivhaus, which can start from a blank canvas, retrofitting involves working with existing buildings where many elements like geometry, orientation, and structural approach are already predetermined. Additionally, retrofit projects may have thermal bridges (or cold bridges) that are challenging to eliminate completely.

The EnerPHit standard acknowledges these challenges and sets slightly lower performance requirements compared to Passivhaus, considering the limitations of retrofitting existing buildings. To meet the EnerPHit standards, a space heating and cooling demand of 25 kWh/m2/year is required (compared to the Passivhaus standard of 15 kWh/m2/year). Airtightness performance should achieve 1.0 air changes per hour (compared to the Building Regulations for new homes, which require between 5 and 15 air changes per hour). While achieving these standards may use more energy than Passivhaus, it still represents a significant improvement over most existing homes and even new builds.

Douglas House, Kensal Rise, North West London. Douglas House includes MVHR, high levels of insulation and airtightness
Douglas House, Kensal Rise, North West London. Douglas House includes MVHR, high levels of insulation and Airtightness and Solar PVs

Guidelines and Design Considerations

EnerPHit provides a benchmark for renovators to work towards. Similar to Passivhaus, the Passivhaus Planning Package (PHPP) design tool is used when designing an EnerPHit scheme. This tool helps deliver more efficient buildings by considering factors like orientation and geometry at an early design stage. The PHPP enables informed decision-making regarding retrofit measures, cost implications, and energy considerations.

It’s important to note that retrofitting is not an easy task, and achieving the EnerPHit standard requires careful planning and execution. The thermal and airtightness strategies are likely to be more complex and challenging on site compared to new builds. Balancing the pros and cons of internal or external insulation is a critical consideration, as well as addressing potential moisture issues that may arise from changing the building fabric. Undertaking an EnerPHit retrofit demands a skilled and knowledgeable design team that can navigate these complexities.

Retrofit Measures and Certification Process

When carrying out an EnerPHit retrofit, several measures are required to meet the standard. These include:

  • High levels of insulation, either internal or external (with internal insulation requiring more attention to moisture risk)
  • High-performance triple-glazed windows and external doors
  • Careful window installation
  • Achieving an airtightness reading of 1.0, and
  • Implementing a Mechanical Ventilation with Heat Recovery (MVHR) system.

To receive EnerPHit certification, the process is similar to working towards Passivhaus certification. The project must be designed using the PHPP and certified by an accredited Passivhaus certifier. While the products used in the retrofit do not need to be Passivhaus certified, having certified products, especially for MVHR equipment, can be beneficial.

To make EnerPHit retrofits more accessible, the Passivhaus Institute has introduced the EnerPHit Retrofit Plan, a step-by-step certification process that allows payments for certification to be made in stages. This helps with funding for retrofit projects and provides a structured approach to achieving certification.

Herbert Paradise, Kensal Rise, North West London. Includes MVHR, ASHP, Airtightness, Solar PV and high levels of insulation
Herbert Paradise, Kensal Rise, North West London. Includes MVHR, ASHP, Airtightness, Solar PV and high levels of insulation

Cost Considerations

The cost of an EnerPHit retrofit can vary depending on the complexity of the existing building. As a general guideline, budgeting around £800-£1,000 per square meter for deep retrofit/EnerPHit, excluding VAT, is advisable. When considering specific components or systems, expect to pay around £10,000 for an MVHR unit installed in an average-sized house and approximately £400-£600 per square meter for windows and doors. However, the major costs lie in labor, as the installation of insulation and airtightness measures is time-consuming and requires meticulous attention to detail.

Insulation and Retrofit Challenges

One of the significant challenges faced by retrofitters is determining the optimal placement of insulation to improve the energy efficiency of existing houses. Regardless of where the insulation is placed, it is likely to create some issues. Internal wall insulation, for example, raises concerns about condensation and mold growth. When insulation is added to the inside of a wall, it can make the wall colder and disrupt the balance that previously allowed moisture to evaporate. This can lead to trapped moisture within the new wall assembly.

The Society for the Protection of Ancient Buildings (SPAB) has highlighted the issue of interstitial condensation and conducted research to better understand when and where it may occur. While specific recommendations may vary, the general advice is to avoid internal wall insulation in very exposed locations with porous external surfaces, as it can interfere with moisture management. This advice applies to buildings of any era, not just ancient ones.

Douglas House, Kensal Rise, North West London. Douglas House includes MVHR, high levels of insulation and Airtightness and Solar PVs
Douglas House, Kensal Rise, North West London. Douglas House includes MVHR, high levels of insulation and Airtightness and Solar PVs

Is EnerPHit Right for Your Home?

Considering an EnerPHit retrofit makes the most sense when you are already planning renovation or remodeling work on your house. If you are contemplating changes to your home to improve energy efficiency, EnerPHit offers a compelling opportunity. For instance, when replacing the roof or windows, it becomes easier to justify investing in high-performance materials that align with the EnerPHit standards.

While an extension project may not be the ideal time for a retrofit, it provides an excellent opportunity to create a long-term whole house plan that integrates the extension seamlessly and ensures compatibility with future retrofitting efforts. Planning for an EnerPHit retrofit from the beginning can help you achieve high levels of comfort and thermal performance in your home.

Light House, Clapham, South London. Light House includes MVHR, high levels of insulation and Airtightness and Solar PVs

Conclusion

EnerPHit represents the pinnacle of energy-efficient retrofitting, aiming to bring existing properties to levels of energy efficiency comparable to Passivhaus standards. While retrofitting poses unique challenges compared to new builds, the EnerPHit standard provides guidelines and benchmarks for achieving exceptional performance. With careful planning, skilled design teams, and a comprehensive understanding of the complexities involved, EnerPHit retrofit projects can transform existing properties into low energy and low embodied carbon homes.

By adhering to the principles of EnerPHit and working towards certification, you ensure rigorous quality assurance, airtightness performance, and adherence to the design objectives. While EnerPHit retrofit costs can vary depending on the complexity of the project and project location, the long-term benefits of improved energy efficiency, comfort, and reduced carbon emissions make it a worthwhile investment for homeowners looking to create sustainable living spaces.

So, if you’re considering renovating your home with the goal of achieving high levels of comfort and thermal performance, now is the time to plan for an EnerPHit retrofit. Embrace the challenge, work with knowledgeable professionals, and unlock the potential of your existing property to become an energy-efficient haven that aligns with your sustainability goals.

If you would like to talk through your project with the team, please do get in touch at mail@risedesignstudio.co.uk or give us a call on 020 3290 1003

Contact us

RISE Design Studio Architects company reg no: 08129708 VAT no: GB158316403 © RISE Design Studio. Trading since 2011.

Exploring Structural Insulated Panels: Are SIPs Right for Your Self-build project?

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In the world of modern construction methods, structural insulated panels (SIPs) have emerged as a groundbreaking solution that offers numerous advantages over traditional build methods. With their ability to accelerate the construction process, achieve exceptional airtightness, and reduce energy consumption, SIPs have garnered significant attention in the architectural industry. In this comprehensive guide, we will delve into the world of SIPs, exploring their benefits, drawbacks, cost implications, and provide expert advice on how to ensure a successful SIPs build. Join us on this journey as we discover how this innovative construction system is revolutionising the industry.

What is a Structurally Insulated Panel (SIP)? Showing the sandwich of OSB and foam insulation
What is a Structurally Insulated Panel (SIP)?

Chapter 1: Unveiling the Potential of Structural Insulated Panels

To understand the advantages of SIPs, we must first comprehend their fundamental nature and composition. Structural insulated panels are essentially panels comprised of insulation foam sandwiched between two oriented strand boards (OSB), which act as the structural components of the building. These panels come in standardised sizes and can be customised to suit specific project requirements. By utilising SIPs for external walls, internal load-bearing walls, and roof panels, architects can tap into the numerous benefits they offer for contemporary design-led architecture studios that prioritise low energy and low embodied carbon designs.

New build Post War Victorian House, Kensal Rise - to be built using SIPs
New build Post War Victorian House, Kensal Rise – to be built using SIPs

Chapter 2: The Pros of Building with Structural Insulated Panels

2.1 Enhanced Thermal Performance and Airtightness

One of the significant advantages of SIPs over traditional timber frame constructions is their superior thermal performance. With timber studs spaced at 1200mm centres, SIPs dramatically reduce repeated cold-bridging, thereby improving the overall energy efficiency of the building. Moreover, the inherent airtightness of the OSB boards and the rigid insulation core contribute to minimal air leakage, making SIPs an excellent fit for energy-efficient projects such as Passivhaus designs.

2.2 Efficient and Speedy Construction Process

SIPs’ factory-made panels offer greater accuracy and consistency compared to on-site cut timber frames, resulting in minimised gaps during construction. This, coupled with the off-site fabrication process, significantly reduces build times and ensures a safe and dry environment during the construction phase. By opting for SIPs, architects can achieve a watertight stage swiftly, accelerating the overall project timeline and reducing costs associated with scaffolding, plant hire, and site insurance.

SIPs panel showing how it is made, including holes for electrical cables
SIPs panel showing how it is made, including holes for electrical cables

2.3 Versatile Design Possibilities

The structural integrity of SIPs eliminates the need for traditional roof trusses, providing architects with the freedom to create unique and spacious interiors. By spanning up to 4.8m from eaves to ridge, SIPs allow for higher ceiling heights, transforming the living spaces into open and visually stunning areas. This versatility opens up a world of design possibilities, enabling architects to craft contemporary, light-filled homes that align with the aesthetic preferences of their clients.

Chapter 3: Understanding the Limitations of Structural Insulated Panels

3.1 Moisture Sensitivity

While SIPs offer exceptional benefits, their vulnerability to moisture is an important consideration. It is not recommended to use SIPs in flood zones or below ground, as the exposure to moisture can compromise their structural integrity. In such cases, masonry builds might be a more suitable alternative. However, architects can explore hybrid solutions, combining masonry for the ground floor and SIPs for the upper storeys, to strike a balance between the advantages of both construction methods.

3.2 Ventilation Requirements

The airtightness of SIPs necessitates adequate ventilation strategies to prevent condensation buildup and maintain air quality within the home. Incorporating mechanical ventilation heat recovery (MVHR) systems can help achieve a balanced airflow, ensuring a comfortable and healthy living environment. Architects should work closely with HVAC professionals to integrate ventilation systems seamlessly into the design and optimise energy efficiency.

3.3 Limited Availability of Experienced Builders

SIPs are still considered a specialised build system, and finding experienced builders who are proficient in working with SIPs might pose a challenge. Architects should collaborate with reputable SIPs manufacturers and actively seek out builders with expertise in this construction method. Establishing strong partnerships with experienced professionals can contribute to the success and efficiency of the SIPs project.

Chapter 4: Examining the Load-Bearing Capabilities of Structural Insulated Panels

In the world of construction, one persistent misconception revolves around the load-bearing potential of Structural Insulated Panels (SIPs). This chapter delves into this topic, shedding light on the versatile applications of SIPs in both structural systems and as infill walling elements. Architects and builders can harness the inherent load-bearing capabilities of SIPs to craft efficient and adaptable designs that align precisely with their project’s unique structural prerequisites.

Dispelling the Misconception: SIPs as Load-Bearing Components

It’s not uncommon for individuals in the construction industry to question whether SIPs possess the necessary strength to serve as load-bearing elements. To address this concern, it’s crucial to understand the dual roles SIPs can play in building construction:

1. Full Structural System:

SIPs can indeed serve as a comprehensive structural system for a building. Contrary to the misconception, they are more than capable of bearing the vertical and horizontal loads imposed by the structure. SIPs are engineered with precision, incorporating both the insulating core and structural facings, which, when combined, provide remarkable load-bearing capabilities.

2. Infill Walling for Various Frame Structures:

Beyond being a standalone structural system, SIPs can be employed as infill walling for other frame structures, including steel, concrete, oak, or glulam timber frames. In this capacity, SIPs function as an integral part of the building envelope, offering superior insulation properties while contributing to the overall structural integrity of the building. Architects can seamlessly integrate SIPs into these diverse frame systems, harnessing their thermal efficiency and load-bearing attributes.

Unlocking Architectural Versatility with SIPs

The load-bearing capabilities of SIPs unlock a world of architectural possibilities. Architects can leverage these panels to design buildings that are not only energy-efficient but also structurally resilient. Here are some key advantages:

Efficiency and Sustainability: SIPs’ load-bearing capacity enhances energy efficiency, reducing the need for extensive structural components and resulting in resource-efficient construction.

Design Flexibility: SIPs’ adaptability allows architects to create versatile and innovative designs, seamlessly blending aesthetics with structural integrity.

Speed of Construction: The use of SIPs as load-bearing components accelerates construction timelines, saving time and resources.

Structural Customization: Architects can tailor SIPs to meet specific structural requirements, ensuring they align perfectly with the project’s vision.

In conclusion, Structural Insulated Panels (SIPs) dispel the misconception surrounding their load-bearing capabilities. They can function as both a complete structural system and as infill walling for various frame structures, offering architects a wide range of design options. By harnessing the thermal efficiency and structural strength of SIPs, architects can create buildings that are not only environmentally sustainable but also architecturally remarkable.

Chapter 5: Analysing the Cost Implications of Structural Insulated Panels

5.1 Initial Investment vs. Long-Term Savings

It is essential to evaluate the cost implications of SIPs, considering both the initial investment and the long-term savings. While SIPs can be more expensive upfront compared to traditional timber frame constructions, the overall project costs typically increase by only 3-5%. The time saved during construction, reduced energy consumption, and enhanced thermal performance can offset the initial investment over the lifespan of the building.

5.2 Cost Comparison with Other Wall Systems

When comparing the costs of different wall systems, brick and block constructions may appear to be a more cost-effective option per square meter. However, the extended construction timeline, additional expenses associated with insulation, and challenges in achieving similar levels of airtightness make SIPs a competitive choice. By carefully managing construction details and employing skilled contractors, the overall additional cost of SIPs may be more minimal than it initially appears.

Chapter 6: SIPs Panel Types

When it comes to Structural Insulated Panels (SIPs), architects face a choice between two primary panel types, each offering unique advantages. Below, we explore these options to help you make an informed decision for your low-energy design project.

1. Sandwiched Panels (OSB-Polystyrene):

  • Thermal Efficiency: These panels excel at insulating, helping maintain stable indoor temperatures and reducing energy consumption.
  • Structural Strength: They provide robust construction, with resistance to wind and seismic forces.
  • Ease of Construction: Standard sizes and straightforward installation streamline the building process.

2. Urethane-Infused Panels:

  • Enhanced Insulation: Urethane foam offers superior thermal efficiency, ideal for stringent energy conservation standards.
  • Reduced Thickness: Thin profile, equivalent insulation values – suitable for space constraints or modern aesthetics.
  • Moisture Resistance: Resistant to moisture, making them great for humid or damp climates.

Collaborate with Experts:

Consult reputable SIPs manufacturers to align panel choice with your project’s specific needs. Their expertise ensures your selection suits your goals perfectly.

Chapter 7: Unveiling the Joining Techniques for Structural Insulated Panels

Creating an effective jointing system is crucial to achieving optimal thermal performance and airtightness with SIPs. Architects must explore different jointing techniques, such as using c24 timber for structural joints or employing spline joints for non-structural elements. Additionally, manufacturers offer unique jointing systems utilising mini panels to enhance wall U values and minimise air leakage at connection joints. By choosing the appropriate jointing techniques, architects can ensure the long-term performance and durability of the SIPs building.

Clays Corbridge House by EDable Architects, built using SIPs
Clays Corbridge House by EDable Architects, built using SIPs

Conclusion

As we increasingly prioritise low-energy and low-embodied carbon designs, structural insulated panels have emerged as a game-changer in the construction industry. Offering enhanced thermal performance, accelerated construction timelines, and versatile design possibilities, SIPs provide a compelling alternative to traditional build methods. By understanding the pros and cons, collaborating with experienced professionals, and applying best practices, architects can harness the full potential of SIPs to create sustainable, energy-efficient, and beautiful buildings.

If you would like to talk through your project with the team, please do get in touch at mail@risedesignstudio.co.uk or give us a call on 020 3290 1003

Contact us

RISE Design Studio Architects company reg no: 08129708 VAT no: GB158316403 © RISE Design Studio. Trading since 2011.

A Comprehensive Guide to Party Wall Agreements

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After two decades of experience as an architect in a small contemporary design-led architecture studio, my work has always been rooted in the principles of low energy and low embodied carbon designs. But beyond the energy efficiency of the designs, there’s another key aspect of renovations and home extensions that often goes overlooked: the intricacies of party wall agreements. This article delves into this crucial component of home renovation from an architect’s perspective.

Aerial View of Mill Hill House in North London, designed by Architects RISE Design Studio
Mill Hill House in North London, designed by Architects RISE Design Studio

1. The Party Wall: What It Means for Homeowners

At the heart of many terraced, semi-detached, and apartment homes lies the party wall. This wall, shared between neighbours, represents not just a physical boundary but also shared ownership. Its significance becomes even more pronounced when structural renovation works, that impact the party wall, are being considered.

2. Recognising the Role of the Party Wall Surveyor

In our line of work, we often encounter clients who are unfamiliar with the concept of a party wall surveyor. Acting as an impartial consultant, their primary role is to serve the interests of both the person renovating and their adjoining neighbours. It’s paramount to introduce the significance of a party wall surveyor early on in our project discussions.

3. Decoding the Party Wall etc. Act 1996

The legislation guiding party wall agreements is the Party Wall etc. Act 1996. It’s crucial to understand this piece of legislation, as it dictates when homeowners are legally required to involve their neighbours in building works. Whether it’s an extension that utilises the party wall as a support or excavation works within close proximity of the party wall, the Act covers a broad range of scenarios.

4. Engaging a Party Wall Surveyor: The Essential Steps

It’s tempting to think that homeowners can navigate the process of party wall notices themselves, but the wisdom of experience suggests otherwise. Richard Egan from Osprey Building Consulting, an expert we’ve collaborated with on many projects, emphasises the importance of professional involvement. A party wall agreement, if not done right, can lead to complications and disputes later down the line.

5. Timing is Everything: The Importance of Notice Periods

Understanding the notice periods is pivotal to a smooth renovation process. The Act specifies various periods depending on the type of work being done. It’s our job as architects to guide clients through these timelines, ensuring no premature steps are taken.

6. A Singular Wall, Multiple Surveyors

When served with a party wall agreement, neighbours have a choice: they can either accept the proposed works, dissent and opt for your chosen surveyor, or dissent and select their own party wall surveyor. This often means more than one surveyor might be involved, particularly in scenarios involving multiple neighbours sharing the same party wall. Please see the table below for more permutations of what could happen with regards to the Party Wall process.

Party Wall etc. Act 1996: Key Provisions

Type of WorkNotice Required (Yes/No)Notice PeriodSection of the ActPossible Responses from NeighboursCost ImplicationsAdditional Notes
Side return extension using the party wall as supportYes2 monthsSection 3– Consent to works <br> – Dissent & appoint your surveyor <br> – Dissent & appoint own surveyorVaries based on surveyor and potential remedial worksEnsure detailed plans are provided
Loft extension exposing the party wallYes2 monthsSection 3– Consent to works <br> – Dissent & appoint your surveyor <br> – Dissent & appoint own surveyorVaries based on project complexityCheck with a structural engineer for H&S
Excavation within three metres of party wall & below existing foundation depthYes1 monthSection 6– Consent to works <br> – Dissent & appoint your surveyor <br> – Dissent & appoint own surveyorCan increase if neighbouring properties are affectedEnsure thorough ground studies are conducted
Remember, the table is just a basic representation and covers only three potential work types as examples. The Party Wall etc. Act 1996 has many more stipulations, and depending on your need, you might want to expand upon this table or add further details to cover the full breadth of the Act.

7. Condition Surveys: Protecting All Parties Involved

Before the commencement of any work, party wall surveyors carry out condition surveys. These visual assessments of the existing state of neighbouring properties ensure that all parties have a clear understanding of the property’s current condition, which can be vital in addressing potential disputes down the road.

8. Dispute Resolution: Making Room for Agreement

One of the primary roles of a party wall surveyor is to aid in dispute resolution. When a party wall award is provided by the surveyors, any existing disagreements between neighbours are typically addressed. However, homeowners do have the right to appeal a party wall agreement if they find it unsatisfactory.

9. Costs Involved in a Party Wall Agreement

Party wall surveyors generally charge based on the time they invest. Osprey Building Consulting Ltd, for instance, proposes a fee ranging from £850 to £1300, accounting for an average 7-9 hour commitment for standard projects. However, the rates can differ significantly depending on the firm selected and its geographical location. We maintain a list of party wall surveyors to recommend to our clients and offer guidance on their fees at the beginning of your venture. Of course, you’re always welcome to seek recommendations from acquaintances or relatives.

The process can become notably intricate and expensive when a project is adjacent to several flats sharing the same party wall. In such instances, agreements might be required with each flat. To assist in budgeting for such scenarios, we incorporate these potential costs in our preliminary fee outline for renovators. Additionally, we always advocate for a contingency buffer, suggesting an allocation of 10-15% of your total budget to cover unexpected expenses.

10. An Architect’s Final Word on Party Wall Agreements

In our years of expertise, we’ve understood the critical role that proper planning and legal adherence play in home renovations. A party wall agreement might seem like just another step in the process, but its significance is unparalleled. A well-structured agreement ensures peace of mind for all parties involved, laying the groundwork for a successful renovation project.

Our goal as a contemporary design-led architecture studio is not just to create designs that are aesthetically appealing and energy-efficient, but also to ensure that the journey towards realising these designs is smooth and legally sound.

If you would like to talk through your project with the team, please do get in touch at mail@risedesignstudio.co.uk or give us a call at 020 3290 1003

Contact us

RISE Design Studio Architects company reg no: 08129708 VAT no: GB158316403 © RISE Design Studio. Trading since 2011.

The Lexi Cinema & Hub wins 2 Brent Design Awards 2023

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Brent Design Awards 🙏🏾

We’re absolutely thrilled that the Lexi Cinema extension and refurbishment has received two awards, Heritage & Culture as well as the People’s Choice, at the inaugural Brent Design Awards last Thursday.

The Lexi Cinema & Hub has won two awards at the inaugural Brent Design Awards
The Lexi Cinema & Hub has won two awards at the inaugural Brent Design Awards

Thank you to all who voted for us in the People’s Choice Award, your support is very much appreciated.

Huge thanks also to our amazing client, the Contractor CBC Design & Build, all consultants involved and Brent Council for organising what was a truly impressive awards evening. Many congrats to John Stiles, Natasha Reid FRSA, Alice Lester MBE and Ciara Whelehan for pulling this off – a fantastic achievement.

Aerial view of Screen 2 at The Lexi Cinema, Kensal Rise, NW London
Aerial view of Screen 2 at The Lexi Cinema, Kensal Rise, NW London

Humbling and inspiring speeches by Councillor Muhammed Butt, Councillor Shama Tatler and Councillor Krupesh Hirani.

The Lexi Cinema: the first cinema screen in the UK to use MVHR and Air to Air Source Heat Pump to control the internal climate. 💨 ♻️ 🎥 📽️

Sean, Director at RISE Design Studio, and Muhammed Butt, Leader of Brent Council, at the awards ceremony
Sean, Director at RISE Design Studio, and Muhammed Butt, Leader of Brent Council, at the awards ceremony

It is London’s only social enterprise cinema, located in Kensal Rise. A treasured asset within the local community, The Lexi Cinema tasked us with revitalising a 99 square metre parcel of vacant land in the rear car park of the existing Edwardian gabled brick theatre.

Following a successful two year fundraising campaign including grants from the Brent Neighbourhood Community Infrastructure Levy, a contribution of £50,000 from Sadiq Khan’s community fund, and local donations, The Lexi and RISE Design Studio submitted a planning application backed by 1,211 local signatories, and construction began in July 2020. 🎬👷🏾‍♀️

Sean and Imran, Directors at RISE, with Muhammed Butt Leader of Brent Council
Sean and Imran, Directors at RISE, with Muhammed Butt Leader of Brent Council

Located in a residential area 🏘, The Lexi Hub required a sensitive design approach to exercise consideration to the close neighbouring homes adjacent to the site. An exercise in community partnership, we conceptualised an extension that reciprocates the same care and thought for the community which is wholeheartedly shown to The Lexi by local patrons. 👨‍👩‍👦 👩🏽‍🎓👩🏼‍🍳We proposed a sunken extension, digging down 1.5 metres to reduce the new Lexi Hub’s massing, ensuring the extension sits only 2 metres above the neighbouring garden wall while also enabling level access from the car park. This strategy conceals a foundation of reinforced concrete, services and thick acoustic and thermal insulation.

Rosie from The Lexi, Alice Lester MBE Operational Director Regeneration, Growth and Employment at London Borough of Brent and Sean, Director at RISE Design Studio
Rosie from The Lexi, Alice Lester MBE Operational Director Regeneration, Growth and Employment at London Borough of Brent and Sean, Director at RISE Design Studio

Key to the Client Brief were the Sustainable Strategies, which included Super-insulated walls and roof, Airtightness, Mechanical Ventilation with Heat Recovery, Air-Air Source Heat Pump, Wildflower Sedum Green Roof.

Have you been yet?🍿Head down and check it out – run by volunteers with all profits going to charity.

A huge thank you to our wonderful client and project team for making it such a success:

  • Client: The Lexi Cinema
  • Architect: RISE Design Studio
  • Structural Engineer: CAR Ltd
  • Main Contractor: CBC Design & Build
  • Services Engineer: Enhabit
  • Sustainability Consultant: Kaspar Bradshaw
  • AV Consultant: Omnex Pro Film
  • Cinema Technical Specialist: Sammy Patterson
  • Screen + Projector Pod Specialist: Powell Cinema Engineers
  • Intruder Alarm Specialist: NSS Security Solutions
  • IT Specialist: Blashford IT Support
  • Landscape Consultant: Dan Shea Garden Designer
  • Acoustic Consultant: Munro Acoustics
  • Approved Building Inspector: Quadrant
  • Wayfinding Designer: Zalacain Wayfinding
Sean (RISE), Rosie (Lexi), Krupesh Hirani (London Assembly Member for Brent and Harrow), Imran (RISE), Iljaz (CBC) and Musa (CBC) at the Brent Design Awards
Sean (RISE), Rosie (Lexi), Krupesh Hirani (London Assembly Member for Brent and Harrow), Imran (RISE), Iljaz (CBC) and Musa (CBC) at the Brent Design Awards

If you would like to talk through your project with the team, please do get in touch at mail@risedesignstudio.co.uk or give us a call on 020 3290 1003

Contact us

RISE Design Studio Architects company reg no: 08129708 VAT no: GB158316403 © RISE Design Studio. Trading since 2011.

Decoding the Maze of Pre-Application Advice

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An inherent part of our journey with every project is the necessary rite of passage that is the planning permission process. Seen by many as a labyrinthine process, we are often asked about the concept of pre-application advice – an often overlooked, yet sometimes crucial element of the planning permission process.

A pre-app for this home in a Area of Outstanding Natural Beauty (AONB) helped us establish some basic design principles
A pre-app for this home in a Area of Outstanding Natural Beauty (AONB) helped us establish some basic design principles

Pre-Application Advice: The Unsung Hero of the Planning Permission Process

Picture this: you’re poised to submit your planning application for your new home to the local authority. It’s a momentous step, laden with anticipation and a smattering of anxiety. But what if there were a way to receive insights from the local authority before submitting the application? That’s where pre-application advice, often referred to as a ‘pre-app,’ comes into play.

A pre-app is essentially a request for specific advice from the planning officers in the local authority (commonly known as the council). It unveils essential information about the project and the relevant planning policies, equipping you with the knowledge you need to align your proposal with the rules and increase the chances of a successful planning application. However, keep in mind that a pre-app is not a guarantee of approval.

Although there’s a national framework governing wider rules, each local planning authority wields its own planning policies that applications should comply with. The nuances can be subtle, and interpretations may vary. That’s why having a planning consultant by your side is invaluable – but more on that later.

Rather than providing a definitive ‘yes’ or ‘no,’ a pre-app furnishes the applicant with outline advice that could include suggestions for modifications to the proposal. It’s an alarm bell or a source of comfort for applicants before they dive into the time-consuming and expensive full planning submission.

A pre-app allows you to probe deeper into the fundamentals and uncover any concerns about the site and project. For example, you might wonder, ‘Can I build a house here?’ It enlightens you about the policy requirements of the local council and any site constraints. Identifying potential obstacles early offers you the chance to investigate alternative solutions with your designer before the final planning application is sent off. Ultimately, it can save time and money in the planning process by preventing costly errors that could culminate in a failed planning application.

A ‘successful’ pre-app is one that offers a clear opinion of your scheme, whether positive or negative.

A Site Analysis Diagram
A Site Analysis Diagram is helpful to understand the context of the site

Testing the Waters: When to Consider a Pre-App

The need for a pre-app isn’t always clear-cut. Sometimes, it can be beneficial to test the waters if you’re uncertain. While a planning consultant is usually the best person to ask, your architect and designer can also provide insights about the pre-app process.

A pre-app can provide early insights into the council’s likely response to the planning application, particularly in certain scenarios. For instance:

  • Is your site located in a conservation area?
  • Does your project herald a significant change in the area?
  • Has the site had a previous application refused?
  • Is it a brand new dwelling, as opposed to a replacement?
  • Does it alter the ‘use’ of the land?

If any of these conditions apply to your project, a pre-app could be worth considering.

A conservation area, for example, grants the council’s planning officers the authority to comment on design and size. It might be crucial to initiate discussions about the design early, highlighting the intended style of the build and providing reference material.

We used a pre-app for The Avenues House in Pinner because it was a contemporary design for a significant extension to the rear on three levels.
We used a pre-app for The Avenues House in Pinner because it was a contemporary design for a significant extension to the rear on three levels in a Conservation Area.

A Journey of Variance: Understanding the Pre-App Process

In theory, each local planning authority establishes its own process, so the information necessary for your pre-app may differ. The specifics of the service, such as the level of detail required, the cost of consultation, and the time it takes to receive a response, can vary.

However, in practice, the process is reasonably straightforward. Despite slight differences in the costs and information requested, councils typically adopt a similar approach. The process invariably includes a conversation with a planning officer, which could be an in-person consultation or an online form. This consultation entails the submission of a project proposal, incorporating some essential details like the size and plot location.

Each council may offer varying levels of pre-app services. For instance, you may be expected to meet the planning officer in person at your site or discuss the project via email. This variance can also impact the value of the advice given. RBKC in London splits the pre-app advice into five levels depending on how much detail and support you require.

Many authorities offer guidance on how to use the pre-app advice service. This procedural advice from an authority representative ensures that the pre-application is completed correctly and might even include an in-person appointment.

We used a Pre App for our Mill Hill House project to understand the limitations of the site according to planning policy
We used a Pre App for our Mill Hill House project to understand the limitations of the site according to planning policy

Packaging the Pre-App: What to Include

Your pre-app typically encompasses a cover letter and pre-app submission document.

In terms of advice, we recommend focusing only on the critical questions and including the information that forms the basis of these questions. If you provide detailed drawings of the intended design, you might inadvertently trigger a complicated and prolonged design discussion, even though your pre-app might only be aimed at assessing the outline details like volume or location.

The cover letter, usually written by your planning consultant, may include some of the following:

  • Project proposal description
  • Site location plan, indicating site ownership and boundaries
  • Area description and any relevant history
  • Any planning history, if relevant
  • The policies relevant to the proposal
  • Planning assessment for the layout, scale, design, accessibility, trees etc.

The pre-app document, put together by your architect or designer, comprises relevant documents mentioned in the cover letter, as well as additional explanations. 

This might include:

  • Photos of the site and the surrounding architecture
  • Surveys
  • Drawings, such as site analysis and a proposed site layout
  • Environmental information
  • Basic or vague designs of the property outline, if required

It’s not uncommon for people to use the pre-app process to discuss site issues such as roads, footpaths, and boundaries. They may also inquire about potential problems and whether the council might impose conditions to overcome them rather than refuse planning permission outright.

A pre-app was used for McKelvery Farm House, County Down, Northern Ireland
A pre-app was used for McKelvery Farm House, County Down, Northern Ireland

The Aftermath of a Pre-App: What Can You Expect?

Following your pre-app, you will receive feedback on the proposal from the planning officer. This feedback usually arrives in the form of a written response, though it could also be notes from an in-person meeting. The feedback will provide advice on the issues identified in relation to the relevant policies. The planning officer may not comment on other parts of the proposal unless specifically asked to.

The feedback, regardless of its content, is always beneficial. It might be non-committal, but it should address your fundamental question. Positive feedback can bolster your confidence in the success of your application. Negative feedback, while disheartening, can be constructive and help you avoid a failed planning application. An outright rejection could save you the time and money involved in a full planning application.

A simple sketch used to show the planners the massing of the proposals within the context of the site
A simple sketch used to show the planners the massing of the proposals within the context of the site

Time and Cost: The Twin Aspects of Pre-App Process

Once you have worked with your architect or designer, and planning consultant, to assemble the necessary information and make a submission, a response generally takes between 2-8 weeks. This time frame could extend if an in-person meeting with the council is required.

It’s essential to remember that the pre-app duration does not include the eight or so weeks required for the actual planning application. So, if you’re on a tight schedule and confident about your application, this may not be the best path to go down.

As far as costs are concerned, pre-apps can be free for extensions and other minor works. For new builds, you might be looking at anything from £50 to £3,000 for a meeting and response letter. This cost is determined by each council and sometimes depends on the size of the build.

One downside of pre-applications is the absence of statutory frameworks. While planning applications have to be determined within 8 weeks, pre-apps don’t have a set time limit or standard cost. But remember, a higher pre-app cost is not necessarily a detriment. Some councils charge a nominal fee and provide subpar service. Charging more can mean that they dedicate more time to the process and provide better advice.

Due to the challenging site we submitted 3 Pre-Applications for The Lexi Cinema, Kensal Rise, NW London
Due to the challenging site we submitted 3 Pre-Applications for The Lexi Cinema, Kensal Rise, NW London

Important Considerations: Points to Ponder

Successful planning applications cater to all relevant planning policies and convince the local authority planners that the proposed build satisfies all pertinent criteria. As such, the following points are crucial to consider:

  • Be Prepared: Preparation is integral to a positive pre-app and successful planning application. At RISE Design Studio, we often adopt a formulaic approach that anticipates all responses from the local authority. Plan ahead and be as prepared as possible.
  • Inconsistency: Pre-app planning advice can be unreliable and costly. Each local authority follows a slightly different process, and the quality of service can vary.
  • No Guarantees: Any advice provided is often the opinion of the specific planning officer rather than the entire authority. Hence, a positive response from your pre-app does not guarantee approval of your planning application and vice versa.
  • Be Strategic: In some scenarios, revealing detailed designs and seeking feedback risks the planning officer suggesting (and expecting) changes to the scheme that you might not be willing to make.
  • Confidentiality: All pre-apps are private. These discussions are not published on the register for all to see.
  • Cooperation: Collaborating amicably with the council to find mutually acceptable compromises often results in the planning officer being more supportive of your build than they might otherwise have been.
  • Understanding Planning Jargon: Policies can be complex to understand. Each planning authority has its own policies, often written in intricate language. A planning consultant can help you navigate this policy jargon and planning language and can also signal your dedication to the process.
A Pre-App was used for Red Arches House in Kensal Rise, NW London
A Pre-App was used for Red Arches House in Kensal Rise, NW London

Pre-Apps with RISE Design Studio

At RISE Design Studio, planning applications form part of our turnkey service. However, more often than not, we don’t seek pre-application advice. We have a robust understanding of planning requirements and avoid completing a pre-app if we are confident that our design and project conform to policies, thereby providing planning officers with every reason to approve the application.

We generally only resort to pre-apps for projects with a unique combination of reasons, such as a new dwelling with a change of ‘use’ for a plot in a conservation area, or a replacement dwelling in a new location on the plot. Our impressive success rate is indicative of our reliable process.

On the rare occasions when we do complete pre-apps, our in-house design team discusses our submission with a planning consultant. This expert provides invaluable advice before we get started and reviews all documentation without visiting the site, offering us the planning officer’s perspective.

We maintain a strategic approach to our pre-apps, always focused on the questions we have about the project and not divulging excessive information. We research all local policies that might be relevant or cause issues to ensure we craft a realistic proposal. The planning consultant then translates the pre-app into planning jargon, referencing any policies and using planning language – a potent strategy to exhibit our expertise and dedication to the planning officer.

The nuances of pre-apps and planning applications might seem daunting, but the success of your project lies in comprehending these subtleties and responding adeptly to the challenges they present. At RISE Design Studio, we simplify this labyrinthine process, enabling you to see your dream project become a reality. We hope this guide has shed some light on the maze of pre-application advice in planning permission, but we’re always here to help further.

If you would like to talk through your project with the team, please do get in touch at mail@risedesignstudio.co.uk or give us a call on 020 3290 1003

Contact us

RISE Design Studio Architects company reg no: 08129708 VAT no: GB158316403 © RISE Design Studio. Trading since 2011.

Unlocking the Underground Potential: How Much Does a Basement Cost in London in 2023

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Through the years, our firm has dived deep (literally!) into many basement projects, harnessing the potential beneath our feet. Here’s what you need to know.

1. The Allure of the Underground: Why Basements?

Many of London’s conservation areas and sensitive locations pose restrictions on above-ground extensions. This leaves homeowners with a basement as the prime alternative for extra space. It’s not a mere excavation but an investment, both financially and emotionally.

View of a basement lightwell in Queen's Park, North West London
View of a basement lightwell in Queen’s Park, North West London

2. How Much Will a Basement Cost?

Starting at around £5,200 per square metre (plus VAT), the initial figures might be intimidating. But, consider this: basement extensions have been known to add a value ranging from £8,500 to an astonishing £23,000 per square metre, especially in upscale areas like West London. For those purely concerned with the financial aspect, this is a promising ROI.

3. The Factors At Play: Why Are Basements Expensive?

Unlike traditional extensions, basements demand more. From excavation to waterproofing, structural interventions to advanced plumbing, the challenges are manifold. Then, there’s the question of lighting. Strategically placed light scoops or double height spaces can work wonders, but they come at a cost.

4. External Components: Going Beyond the Underground

It isn’t just the basement’s interior that demands attention. Externally, one needs to think about light wells, landscaping, rooflights, and more. Furthermore, ventilation becomes crucial, and mechanical solutions might be required to maintain the air quality.

5. Safety First: The Access and Exit Dilemma

In any architectural project, especially basements, safety remains paramount. Apart from the main access, a secondary escape route is essential, ensuring an alternative exit during emergencies.

6. Versatility of Basements: Endless Possibilities

Basements aren’t just storage dungeons. Imagine a serene yoga room or a private cinema lounge. Yes, these can be demanding in terms of cost, but the luxury they offer is unparalleled.

7. Consulting the Experts: Whom to Seek?

Planning a basement isn’t a solo endeavour. Architects, structural engineers, cost consultants, and even party wall surveyors play pivotal roles. As a rule of thumb, consultant fees might oscillate between 11% to 19% of the construction cost, with additional charges for building regulations and party wall agreements.

8. Delving Deeper: The Pre-Planning Phase

Basements are intricate. From geological surveys to assessments of the ground to sun and daylight reports, multiple assessments are crucial. Don’t be startled by the initial investment, as these reports pave the way for a seamless construction journey later.

9. Crafting the Perfect Basement: Aesthetic and Functional Considerations

While the functionality of a basement is important, so is its aesthetic appeal. Using warm, natural materials can transform the space, making it cosy and inviting. Leveraging the basement’s inherent qualities, such as low light, can even be an advantage.

10. The Final Verdict: Is a Basement Worth It?

Constructing a basement is undeniably costlier than above-ground extensions. But, if site restrictions hamper above-ground development, a basement becomes a beacon of hope. It offers the luxury of additional living space without the hassle and expense of relocating.

If you would like to talk through your project with the team, please do get in touch at mail@risedesignstudio.co.uk or give us a call at 020 3290 1003

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RISE Design Studio Architects company reg no: 08129708 VAT no: GB158316403 © RISE Design Studio. Trading since 2011.

RISE Design Studio stands with MPs calling for the government to reduce VAT on green home improvements

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RISE Design Studio, a small contemporary design-led architecture studio with 20 years of experience, is passionate about creating low-energy and low-embodied carbon designs. We believe in the power of sustainable architecture to combat climate change and create a better future for generations to come. That’s why we stand with MPs who are calling on the UK government to reduce VAT on green home improvements.

In an encouraging move, the UK government has announced its plan to scrap VAT on green home improvements for the next five years. Chancellor Rishi Sunak has expressed his intention to cut VAT to zero on solar panels, heat pumps, and insulation installed in British homes. While the details are yet to be clarified, including whether the VAT reduction covers installation or just materials and products, this initiative holds great potential. By making green home improvements more affordable, the reduced VAT will enable more people to enhance the energy efficiency of their homes.

Herbert Paradise, Kensal Rise, NW London. Undergoing complete transformation to become an exemplar of sustainable design for retrofitting a mid-terrace house.

The significance of this decision lies in the UK government’s legally binding commitment to reduce the country’s carbon emissions by 78% by 2035, compared to 1990 levels. This ambitious carbon reduction plan, the most progressive in the world, is a commendable step toward achieving Net Zero emissions by 2050. However, for this commitment to translate into tangible action, the government must implement measures that support and encourage green home improvements. Industry experts strongly urge the government to fulfil its promise by reducing VAT on such initiatives.

One crucial area that requires urgent attention is the high reliance on fossil fuels for heating UK homes. Astonishingly, over 90% of UK homes are heated using gas and oil, accounting for nearly 20% of the country’s carbon emissions. Surveys have shown that almost 80% of UK residents support renewable energy for electricity and heat. However, the adoption of renewable energy solutions has been slow, with only 36,000 heat pumps installed in the UK in 2020.

Red Brick House, Willesden, NW London. An extensive renovation and extension to a detached house following Passivhaus standards. The above image shows the heat pump installed at the back of the kitchen extension.
Red Brick House, Willesden, NW London. An extensive renovation and extension to a detached house following Passivhaus standards. The above image shows the heat pump installed at the back of the kitchen extension.

To meet the government’s ambitious target of achieving Net Zero by 2050, the Climate Change Committee (CCC), an independent government advisory group, recommends a significant increase in the number of heat pumps. The CCC suggests that by 2025, the UK should have 415,000 heat pumps installed annually. Although the government has committed to reaching 600,000 installations per year by 2028, this falls short of the CCC Pathway, which calls for 900,000 installations by 2028 and 1.1 million by 2030.

The high initial cost of energy-efficient home improvements remains a major barrier preventing many individuals from investing in these sustainable upgrades. By maintaining VAT at 20% on green home improvements, the government exacerbates this obstacle. It is crucial for the government to do more to reduce this financial barrier and ensure that greener heating options are accessible to all.

The Department for Business, Energy, and Industrial Strategy is preparing a new policy aimed at reducing carbon emissions from home heating in the UK, with an expected release later this week. However, according to The Guardian, ministers seem resistant to pressure from MPs, environmental experts, and the construction industry to reduce VAT on green home improvements.

It is worth noting that VAT on energy-saving improvements to existing homes increased from 5% to 20% in October 2019. At the time, HMRC cited EU tax laws as the reason for this increase. Now that the UK has left the EU, we are no longer bound by these tax laws. It is high time for the government to amend this policy and fulfill its promise to exercise control over taxes as a consequence of leaving the EU.

Interestingly, while new builds are not subject to VAT, green home improvements for existing homes are still taxed at the higher rate of 20%. This discrepancy seems illogical, as minimising the carbon footprint of existing homes is often the more sustainable option.

Regrettably, the government’s commitment to addressing the climate emergency has been marred by the withdrawal of support. In a puzzling move, the government terminated the Green Homes Grant initiative after just six months, offering little explanation. Under this scheme, homeowners could receive grants of up to £5,000 or £10,000 for energy-efficient home improvements. Consequently, the absence of this scheme leaves little government support or incentive for individuals seeking to reduce the carbon emissions of their homes. Additionally, the tax rate on burning fossil fuels for home heating remains at a mere 5%.

This lack of government support and the higher tax rate on green home improvements adds to the challenges faced by those considering transitioning from gas boilers to greener heating options like air source heat pumps. It is essential for the government to align its actions with its commitment to reducing the UK’s carbon emissions and ensuring affordable and accessible energy for all. By lowering the VAT on green home improvements, the government would demonstrate its genuine dedication to assisting individuals in making these crucial changes.

Herbert Paradise, Kensal Rise, NW London. House renovation and extension to meet EnerPHit standards, including no gas, ASHP, MVHR, additional insulation, airtightness and Solar PVs.
Herbert Paradise, Kensal Rise, NW London. House renovation and extension to meet EnerPHit standards, including no gas, ASHP, MVHR, additional insulation, airtightness and Solar PVs.

Furthermore, the government must prioritise helping people living in social and rented housing to lower their energy bills and reduce their carbon footprint. The government should ensure that policies enabling home improvements are not exclusive to homeowners but also extend to those living in social housing. The current provision of reduced VAT on energy-saving home improvements for specific benefits recipients falls short of addressing the needs of those on lower wages. Even for those who qualify for reduced VAT, affordability remains an obstacle for the majority.

NGOs such as Insulate Britain are calling on the government to implement policies that guarantee adequate insulation for all UK homes by 2030. They urge the government to prioritise insulation in social housing (including both council and housing authority-owned properties) by 2025. Without a comprehensive insulation policy, the risk of widening the poverty divide looms large, as individuals living in energy-inefficient homes face higher heating and electricity bills.

It is also worth noting that there is currently no direct incentive for private landlords to improve the carbon and energy efficiency of their properties. While tenants would benefit from lower energy bills and improved comfort, the increase in rental yield remains minimal. However, as awareness of the advantages of living in energy-efficient homes grows, this may change.

One effective approach to ensure action is for the government to enforce legal requirements regarding insulation and energy efficiency levels in homes. By doing so, the government would compel landlords to take steps toward creating a greener society. This approach would guarantee that no one is left behind on the path to sustainability.

Red Arches House, Kensal Rise. New Build House designed to Passivhaus standards

At RISE Design Studio, our mission is to collaborate with clients and improve their homes, reducing their properties’ carbon emissions, mitigating overheating issues, and enhancing energy efficiency. We possess extensive experience in designing with Passivhaus principles and can offer expert advice on low-energy home improvements. However, we believe that the government must do more to support everyone in making sustainable changes.

While reducing VAT on green home improvements is just one step in the right direction, it holds significant potential to create a greener and more sustainable world that is accessible and fair for all. Our commitment to sustainable architecture extends beyond our own projects, and we urge the government to take bold action in facilitating the transition to a low-carbon future.

To explore our portfolio of low-energy home improvements and learn more about RISE Design Studio’s work, click here. If you are interested in improving the energy efficiency of your home, feel free to contact us at 020 3290 1003. Together, let’s create a greener and more sustainable future.

If you would like to talk through your project with the team, please do get in touch at mail@risedesignstudio.co.uk or give us a call on 020 3290 1003

Contact us

RISE Design Studio Architects company reg no: 08129708 VAT no: GB158316403 © RISE Design Studio. Trading since 2011.