Nestled just above London’s hustle and bustle, Hampstead’s blend of the old and new, rural and urban, has provided a rich canvas for our team’s passion: designing low energy, low embodied carbon structures that are as sustainable as they are breathtaking. Let’s delve into this unique landscape, a place that’s been both our canvas and my inspiration for 20 years.
Aerial view of Hampstead Heath with London city centre in the background
Chapter 1: Hampstead – Where Nature Meets the Urban
Perched above London, Hampstead offers a serene village-like ambience. With Hampstead Heath’s vast expanses dominating the region, it crafts a unique narrative of intertwining nature with the built environment. The streets, whether winding down towards the heart of London or above it, add to the unique charm of the locale.
Chapter 2: The Allure of Dual Existence
Hampstead’s magic lies in its duality. It offers the peace of a countryside village while being a mere Tube ride away from London’s centre. This strategic position has made it an attractive residential haven, forging a community that values and fiercely protects its unique essence.
Chapter 3: Landmarks of Hampstead
Beyond the Heath, Hampstead is graced with historical gems that echo tales from bygone eras. From the artistic allure of Kenwood House and Keat’s House to the intriguing Freud Museum, the landmarks present a captivating blend of art, history, and architecture. And who could forget The Spaniards Inn? A Grade II listed pub that stands as a testament to Hampstead’s rich historical tapestry.
Isokon Flats, also known as Lawn Road Flats and the Isokon building, is a reinforced concrete block of 36 flats, designed by Canadian engineer Wells Coates for Molly and Jack Pritchard.
Chapter 4: Modernist Beauty and the Isokon Flats
While many argue about its precise location, the Isokon Flats, hailed as one of London’s modernist marvels, adds a contemporary touch to the Hampstead-Belsize Park landscape.
Chapter 5: A Parade of Architectural Wonders
From Georgian cottages adorned in pristine white to towering Victorian homes showcasing rich red bricks, Hampstead’s architectural diversity is its signature. Whether it’s the high Modernism structures or the softer, 1960s English variety, the region’s architectural palette is a delightful mix, making it distinct from more uniform parts of London.
Chapter 6: Comprehending Hampstead’s Many Facets
Navigating Hampstead’s architectural plethora can be challenging, especially when trying to adhere to its “local character”. But over years of immersing ourselves in its streets and stories, we’ve deciphered this seemingly bewildering conundrum, understanding the essence of what makes Hampstead, well, Hampstead.
Our Ice-Cream House on Cressy Road in Hampstead is sympathetic to the Victorian charm while updating the house to a low-energy home of the 21st Century
Chapter 7: Navigating Conservation and Preservation
Our architecture and design studio specialises in rejuvenating spaces while preserving their historical charm. With numerous projects within conservation areas, we’ve garnered invaluable insights into the delicate balance of renovating and conserving.
Chapter 8: Mastery in Modern Adaptations
Hampstead’s rich tapestry of listed buildings presents unique challenges. Our experience in navigating the intricate process of obtaining planning consent for modifications has been a testament to our dedication and understanding of preserving history while catering to contemporary needs.
Chapter 9: Serving the Heart of Hampstead
Our roots in Hampstead are deep, catering to various postcodes including NW3 and NW6. These areas have seen our most passionate projects come to life, marking our footprint in this architectural haven.
Chapter 10: Our Commitment to Sustainable Architectural Excellence
Beyond aesthetics and functionality, our studio is devoted to creating structures that are sustainable. In an era of rapid environmental changes, our designs prioritise low energy consumption and minimal embodied carbon, underscoring our commitment to a greener future.
Conclusion
Hampstead, with its vibrant history and architectural diversity, has been more than just a workspace for our studio. It’s been a muse, a teacher, and a testament to the potential of blending past legacies with future innovations.
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
Our small, design-led architecture studio has been driven by a passion for contemporary design, with an unwavering focus on energy efficiency and low embodied carbon. This post is intended to give you an insight into our principles, our ethos, and our approach to eco-friendly, sustainable architecture.
Our Foundations: A Journey Towards Sustainability
In 2011, a clear vision took shape within the four walls of our fledgling architecture studio – to redefine urban living for a sophisticated, environmentally conscious population. As sustainable architects, our ambition was to create residential designs that harmonise seamlessly with their environment, utilising advanced technology and sustainability principles. Over the years, we have been committed to reducing consumption and improving energy efficiency during both the construction phase and the operational lifespan of our projects.
Mill Hill House, a new build house designed following Passivhaus principles
Building Future-Ready Homes with Sustainable Architects
Central to our architectural philosophy is the idea of ‘future-proofing’. We’re not just designing for the present but also considering the generations to come. This involves the application of sustainable and cost-effective building solutions, many of which have been developed in partnership with Sustainability specialists. We create homes that can adapt to changing climates and stand the test of time while reducing our clients’ environmental footprint.
Douglas House in Kensal Rise designed following EnerPHit principles
The Graduated Approach to Sustainable Living
To provide a tangible gauge of sustainability, we have developed a hierarchical structure comprising the elements (see Passivhaus and EnerPHit standards) of improved thermal insulation, reduction of thermal bridges, considerably improved airtightness, use of high-quality windows, ventilation with highly efficient heat recovery (MVHR), efficient heat generation (ASHP), and use of renewable energy sources. With each progressive stage, our clients achieve a more significant decrease in environmental impact while also benefitting from reduced running costs, lower construction expenses, and potential avoidance of planning delays. This approach has proven particularly advantageous for new-build homes, delivering a swift return on investment through rigorous adherence to sustainability standards.
We embrace the use of innovative 3D design, visualisation tools and 3D building information modelling (BIM) technology on all our projects
Leveraging Cutting-Edge Technology
As a RIBA Chartered Practice, we conform to the strict criteria of the Royal Institute of Chartered Architects. We embrace the use of innovative 3D design, visualisation tools and 3D building information modelling (BIM) technology on all our projects. Collaborating with consultants and contractors using this leading-edge technology has proven invaluable, saving our clients both time and money.
Mill Hill House in North London, sustainable design includes MVHR, Airtightness, Solar Panels, High-Performance Windows and Increased Insulation
Case Studies in Sustainable Design
Our portfolio is filled with examples of our commitment to sustainable design, from the creation of bespoke additions to period properties to the more significant, all-encompassing projects like the eco-conscious design of a house in Mill Hill. Each case study offers an insight into our approach, and how we strive to push the boundaries of sustainable architecture.
Herbert Paradise in Kensal Rise, NW London, follows EnerPHit principles of sustainable design making it a very low-energy home
Refining Sustainability in Renovation
We all recognise the importance of sustainable living. In our daily lives, we’re consuming less, and recycling more and, in our homes, many of us are improving rather than moving. However, renovation too has a significant environmental impact. It is crucial that we find ways to mitigate this, reducing our construction emissions through sustainable design and construction practices. Our studio has made considerable strides in this area, controlling our construction material choices, recycling existing materials, employing prefabricated elements and reducing waste.
Douglas House in Kensal Rise includes Airtightness, MVHR, Solar Panels, High-Performance Glazing and Increased Insulation
Retrofitting Heritage Architecture: A Complex Challenge
One of the significant challenges we face in our quest for sustainability lies in retrofitting heritage architecture. However, through the implementation of a variety of innovative, eco-friendly, and cost-effective elements, we’ve made it possible for these historical buildings to meet modern sustainability standards, without sacrificing their original charm.
Essential Tips for Sustainable Renovation
There are some key aspects to consider when seeking to improve your home’s sustainability. Insulation, energy-efficient glazing, and ventilation systems are primary considerations. Other elements include low-energy lighting, low-flow showerheads, and insulation for the hot-water tank. Using non-toxic paints, stains and sealants, salvaging materials, and opting for local resources can also make a significant difference. Focusing on these essentials makes the path to a more sustainable home accessible and affordable.
Utilising Building Information Modelling (BIM) allows for a greater understanding of the proposals prior to going to site avoiding costly mistakes and wastage during construction
The Importance of Sustainable Architecture in an Urban Environment
As the need for sustainable living practices grows, so too does the demand for sustainable architecture in urban environments like London. Engaging architects experienced in sustainable building allows for developing tailored solutions that consider local climate trends, landscape features, and building regulations. This approach results in drastic reductions in energy usage, saving money and resources for homeowners while maintaining a healthy environment.
Conclusion: Our Commitment to Sustainability
For us, sustainability is far more than a mere buzzword; it’s at the heart of everything we do. Our commitment is not only to our clients but also to the broader community and the environment. Our architectural practice will continue to focus on renewable energy sources, passive cooling solutions, natural ventilation systems, biodegradable or recycled materials wherever possible, and overall energy efficiency. Our mission remains clear: to contribute to a more sustainable future through every design we bring to life.
Frequently Asked Questions
1. What principles guide your approach to sustainable architecture?
We are committed to creating contemporary designs that blend with the environment, are energy efficient, and incorporate low embodied carbon. We focus on reducing consumption and improving energy efficiency during both the construction and operational phases of our projects. Our designs also consider future generations, ensuring homes can adapt to changing climates and stand the test of time.
2. How do you incorporate ‘future-proofing’ into your designs?
‘Future-proofing’ is central to our architectural philosophy. It involves applying sustainable and cost-effective building solutions, many developed in partnership with sustainability specialists, to create homes that are adaptable to changing climates, reducing the environmental footprint of our clients.
3. What is your ‘Graduated Approach to Sustainable Living’?
We’ve developed a hierarchical structure to provide a tangible gauge of sustainability. It involves the implementation of the elements of improved thermal insulation, reduction of thermal bridges, improved airtightness, use of high-quality windows, highly efficient heat recovery ventilation, efficient heat generation, and use of renewable energy sources. This approach has been particularly advantageous for new-build homes, offering substantial decreases in environmental impact and costs.
4. Do you use any specific technology in your architectural practice?
We utilise innovative 3D design, visualisation tools, and 3D building information modelling (BIM) technology in all our projects. This leading-edge technology, in compliance with the strict criteria of the Royal Institute of Chartered Architects (RIBA), helps us collaborate more effectively with consultants and contractors, saving our clients both time and money.
5. Can you provide examples of your sustainable designs?
Our portfolio showcases various sustainable designs, from bespoke additions to period properties to large-scale projects such as the eco-conscious design of a new build house in Mill Hill. These case studies provide insights into our sustainable architectural approach.
6. How do you approach sustainability in renovation projects?
We recognise that renovation also has a significant environmental impact. We strive to mitigate this by controlling our construction material choices, recycling existing materials, using prefabricated elements, and reducing waste, hence improving our construction practices.
7. How do you retrofit heritage architecture sustainably?
Retrofitting heritage architecture is a complex challenge. However, we’ve been successful in implementing innovative, eco-friendly, and cost-effective elements that allow these historical buildings to meet modern sustainability standards without losing their original charm.
8. What should I consider when seeking to improve my home’s sustainability?
Essential considerations include insulation, energy-efficient glazing, and ventilation systems. Other elements to consider are low-energy lighting, low-flow showerheads, insulation for the hot-water tank, using non-toxic paints, salvaging materials, and opting for local resources. These considerations make the path to a more sustainable home accessible and affordable.
9. Why is sustainable architecture important in an urban environment?
As the need for sustainable living practices grows, so does the demand for sustainable architecture in urban environments. It allows for tailored solutions that consider local climate trends, landscape features, and building regulations. This approach drastically reduces energy usage, saving homeowners money and resources while preserving a healthy environment.
10. How does your firm demonstrate its commitment to sustainability?
Sustainability is at the core of all our work. We continually focus on renewable energy sources, passive cooling solutions, natural ventilation systems, biodegradable or recycled materials wherever possible, and overall energy efficiency. Our mission is to contribute to a more sustainable future through every design we bring to life.
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
The attention and interest generated by this 99m2 cinema 🎥 extension has been truly humbling!
RISE Design Studio has completed the refurbishment and extension of London’s only social enterprise cinema, The Lexi, in Kensal Rise.
A treasured asset within the local community, RISE revitalised a 99 sqm parcel of vacant land in the rear car park of the existing Edwardian gabled brick theatre. RISE and The Lexi consulted Brent Council who advised the initial concept, a formal beer garden, would not be possible due to noise constraints but an enclosed second screen might be feasible. RISE conceptualised an environmentally-driven second cinema and bar to accommodate the growing community programme and help drive revenue for The Lexi’s ecological charity efforts. Brent were instrumental in supporting the project – titled The Lexi Hub – through continuous advisory, ensuring planning policy and community needs were balanced.
Following a successful two year fundraising campaign including grants from the Brent NCIL, a contribution of £50,000 from the Mayor of London’s community fund, and local donations, The Lexi and RISE submitted a planning application backed by 1,211 local signatories, construction began in July 2020.
Located in a residential area, The Lexi Hub required a sensitive design approach to exercise consideration to the close neighbouring adjacent homes. An exercise in community partnership, RISE conceptualised an extension that reciprocates the same care and thought for the community which is wholeheartedly shown to The Lexi by local patrons. The architects designed a sunken extension, digging down 1.5m to reduce the new Lexi Hub’s massing, ensuring the extension sits only 2m above the neighbouring garden wall while also enabling level access from the car park. The Lexi Hub seats up to 30 viewers, with flexible accessible space for two wheelchairs or panel discussions and events, and features a new bar.
RISE reduced visual bulk further by echoing the neighbouring parapet roofs, creating a solid superstructure of in situ cast concrete arches which lean away from neighbouring gardens on a 45º angle. Reclaimed London stock brick was used to anchor the extension in its setting and buffed stainless steel to reflect the sky above, conceived as a natural cinema screen which camouflages the roof form. A green wildfower roof replaces biodiversity lost at a higher level. Choosing sustainably-minded options where possible, The Lexi Hub is sealed for airtightness to minimise heat-loss and energy usage, and also features a MVHR system. The Lexi is one of the first cinemas in the UK to regulate temperature and air quality through MVHR opposed to AC.
During construction of The Lexi Hub, a fire caused major smoke damage to the original cinema, Screen One, requiring a complete refit of the existing interiors. RISE salvaged original period details and character including the parquet flooring, which was restored and reinstated to the Box Office. The accident was seen as an opportunity to create a new cohesive interior language throughout the cinema’s facilities and spaces. Raw blush plaster and black walkways act as wayfinding devices, directing patrons from the Box Office down a glazed side extension to a newly refurbished bar, onto ScreenTwo.
A full list of the shortlisted projects is available on the Architects’ Journal website. Winners are announced at the awards evening on Friday 12th May 2023.
A review of the project by Fran Williams with photographs by Henry Woide was featured last August in the Architects’ Journal, please see here for the article.
For a short video of the scheme please see below.
The Lexi Cinema & Hub has been shortlisted for the RIBA Regional Awards 2023
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
For the past two decades, as an architect leading a small, contemporary, design-focused architecture studio, I have been deeply engaged with the design and execution of low-energy and low-embodied carbon projects. Today, as the UK’s commitment to energy efficiency strengthens, it has become paramount to understand the changing landscape of Energy Performance Certificates (EPC). This document, grading your property’s energy efficiency from A to G, has recently undergone significant regulatory changes that will impact homeowners, landlords, and tenants alike. In this comprehensive guide, I aim to demystify these changes and help you navigate your path towards compliance and energy efficiency.
An EPC Certificate will rate your home or commercial property from A – G in terms of energy efficiency
Chapter 1: The Purpose of the EPC: Its Significance and Relevance
EPCs were introduced to provide an index of a building’s energy efficiency, allowing potential buyers or tenants to compare energy performance. With the recent updates to EPC regulations, these certificates hold even more weight, as they directly impact your ability to trade or lease your property.
Chapter 2: Changes to the EPC Regulations: The Recent Scenario
In April 2023, the UK government updated EPC regulations, tightening restrictions on the trading or leasing of properties failing to meet the Minimum Energy Efficiency Standard (MEES). The new regulations are particularly relevant to commercial buildings, but the impact isn’t confined to this sector alone.
Chapter 3: The Future is C-Rated: New EPC Standards for Domestic Tenancies
By December 2028, all existing privately rented properties are required to obtain a C-rated EPC or higher, unless they are exempt. While exemptions are rarely granted, some scenarios exist where a property might not need to comply.
Chapter 4: Securing an Exemption: Navigating the Exceptions
The rules for exemptions are stringent. A property may qualify for exemption only if it’s proven that all recommended steps have been taken to improve the energy efficiency but the property still rates E or below.
Chapter 5: Compliance and Commercial Viability: The Landlord’s Dilemma
For landlords, the new regulations bring both challenges and opportunities. Achieving an EPC that meets the new standards is now a priority for renting or selling properties. Moreover, as energy efficiency standards become more widespread, tenants have greater power to choose properties that guarantee higher rates of energy efficiency.
Chapter 6: Verifying Applicability: Ensuring Your Property Comes Under the New EPC Regulations
Unsure about whether these new requirements apply to your property? Consider these two fundamental questions: is your property let as a domestic tenancy, and is your property legally required to have an EPC?
Chapter 7: Discovering Your Current EPC Rating: The First Step to Compliance
You can check your current EPC rating by accessing the government’s resources for residents of England, Wales, and Northern Ireland. If your property has not yet been assessed, you’ll need to arrange an EPC assessment, which evaluates the energy used per square metre and estimates annual carbon dioxide emissions.
Chapter 8: Partnering with Energy Efficiency Experts: Achieving Energy Efficiency with External Help
Consulting with companies dedicated to identifying and addressing energy inefficiencies in your home can provide crucial support in navigating the complex world of EPC compliance. These companies can offer personalised advice and practical solutions to improve your home’s energy efficiency.
Solar panel installation at Ice Cream House in Hampstead, North London
Chapter 9: Compliance Measures: Actions You Can Take to Improve Your EPC Rating
After your EPC assessment, you’ll receive a list of recommended measures to improve your property’s energy efficiency. These changes can range from installing solar panels and cavity wall insulation to investing in high-performance glazing.
Chapter 10: The Ideal Time for EPC Compliance: The Intersection of Energy Efficiency and Property Renovation
With the looming deadline for compliance and the increasing urgency of addressing climate change, there has never been a better time to work on improving your EPC rating. Interestingly, these efforts also correlate directly with improving the well-being of residents. For those contemplating property renovations or extensions, this could be the ideal opportunity to incorporate energy-efficient ‘retrofitting’ into their plans.
Navigating the changing landscape of EPC regulations may seem daunting, but it presents a unique opportunity for homeowners, landlords, and tenants to contribute positively to the environment while potentially increasing their property’s value and appeal. By understanding these changes and taking proactive steps, we can make a significant difference in our quest for energy efficiency and sustainability.
Frequently Asked Questions
1. What is the purpose of Energy Performance Certificates (EPCs)?
EPCs provide an index of a building’s energy efficiency, allowing potential buyers or tenants to compare energy performance. Following recent updates to EPC regulations, these certificates now directly impact the ability to trade or lease property.
2. What changes were made to the EPC regulations in 2023?
In April 2023, the UK government tightened restrictions on the trading or leasing of properties failing to meet the Minimum Energy Efficiency Standard (MEES). These changes particularly affect commercial buildings, but they also apply to other sectors.
3. What are the new EPC standards for privately rented properties?
By December 2028, all existing privately rented properties are required to have a C-rated EPC or higher, unless they are exempt. Exemptions are rarely granted and are only considered when a property fails to meet the standard despite all recommended efficiency improvements being implemented.
4. How can I check my current EPC rating?
Your current EPC rating can be checked via the government’s resources for residents of England, Wales, and Northern Ireland. If your property has not been assessed yet, you will need to arrange an EPC assessment.
5. What steps can I take to improve my EPC rating?
After your EPC assessment, you will receive a list of recommended measures to improve your property’s energy efficiency. These could include installing solar panels, adding cavity wall insulation, or investing in high-performance glazing.
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
From extensions and loft conversions to building a completely new home, investing in a design and build project is a significant and often stressful undertaking that can open up many questions and routes to take.
For any type of project requiring structural and design work, one thing is certain there are a variety of professional specialists to call upon, with architects being one such group.
In this article, we look at those questions you may have on fees, and how much an architect costs in 2023 to offer clarification.
Life of an architect pre AutoCAD
History of architect’s fees
Hiring a professional be it a lawyer, surveyor, or architect can lead to confusion around exactly how much you are going to be charged. Historically when it came to appointing an architect, things were relatively simple.
The Royal Institute of British Architects (RIBA) had for many years a scale of fees that all reputable architects would charge clients, this allowed those clients to then choose based on expertise and availability rather than price. Costs were calculated by looking at the size and complexity of a specific project and then taken as a percentage of the overall construction cost.
These fees were mandatory across the industry up until 1982 when the introduction of a more Conservative Government led competitive market made them advisory, and they were finally scrapped altogether in 2004.
Coupled with this was a change in the procurement of services in the construction industry with many design skills that had been traditionally associated with architects being placed with the builder/contractor, in essence altering the scope of work and services that the architect provided.
Queen’s Park House drone photo of rear extension and garden, Queen’s Park NW London
How much does an architect charge?
Due to the varied nature of an architect’s scope of services and skill, along with the fact they can be involved at various stages of a building project or the whole cycle in line with the RIBA Plan of Work, there are three different types of fee.
Fixed Fee
A fixed fee which is a pre-agreed amount tends to work best when both the client and the architect have a clear understanding of the brief and deadlines in hand, and where there is little room for change when it comes to the nature of the appointment. For example, this could be designing, and preparing plans, construction drawings, and other documents required for a planning application.
Percentage Fee
This is based on a percentage of the construction costs as a whole and can range from 5% to 20% of your whole build cost dependent on the size of the project. In most cases, the bigger the project the lower the percentage.
It is most common on residential projects where the full scope of work is not clearly defined at the start as it allows for fee flexibility if the size or complexity of the undertaking changes. Fees are usually taken in the form of regular monthly payments. There is usually a minimum or maximum cap.
Clients may be concerned that some architects may look to keep construction costs high to charge heftier fees, but any reputable architect is bound by the code of conduct as set out by the Architects Registration Board which requires them to “be honest and act with integrity” and to ‘look after your clients’ money properly and be trustworthy’.
Time Charge Fee/Hourly Rate
This tends to be an hourly charge and can range from £50 to £160 dependent on the expertise of the architect and their location, as an example London based firms tend to have higher rates due to the cost of living, insurance, and transport costs.
A time charge fee is usually the best route when the scope of a project has not yet been clearly defined and some flexibility is required. For example, the client wants the architect to act as a contract administrator, but the number of hours is unclear at the beginning due to uncertainty of the chosen contractor and their experience. The total number of hours needed should be estimated at the start with an hourly cap agreed.
It is important to bear in mind that depending on the nature of the project there may be a combination of fees used especially if you are working with an architect from inception to completion and that as well as expenses there will be additional costs for disbursements made on behalf of a client such as payments for planning applications. VAT is also chargeable in addition.
Architects provide a professional service which is ultimately billed for by their time.
Model of Clogher New Build Home, near Lisburn, Northern Ireland
How much to draw up architectural plans?
When people think of an architect one of the immediate skills that come to mind is in the drawing up of architectural plans that are required to gain planning permission, building control approval, and for contractor use during construction.
Some clients may wish to appoint an architect only for planning if for example, they intend to sell a site once planning is approved to benefit from the uplift in value, whereas for others it is just the start of the collaborative partnership.
In terms of costs, it is dependent on the specifics of the project and what is required but it tends to be around 30% – 40% of an architect’s fee. Drawing up plans for a planning application for an extension would tend to start at approx. £5,500, going up to around £18,000 for small-scale new build developments. When looking at plans for building regulation approval or tender drawings then costs would rise to approx. £8,000 for extensions and £13,000 for small-scale new builds.
It is important to remember that as part of this process, your architect will play a critical role in not only preparing and submitting your planning application but also in discussing the project in detail with you and planning officers as well as building control approved inspectors whilst providing guidance and advice around compliance.
Distinct stages of architect’s fees when considering budget
As we have touched upon the scope of an architect’s work can be considerable as are the services that each client may require. With each you can expect to pay a varying fee which will consider the level of deliverables, the nature and complexity of the project, the expertise of the architect, and where they are based, if they are in London you can expect to pay 10% – 15% more than elsewhere in the UK.
Feasibility Assessments
A feasibility assessment is vital to ascertain whether your site is suitable for what you are proposing and to determine whether you require planning permission or listed building consent.
It will analyse the risks, rewards, and opportunities that the site presents as well as flag up any constraints.
Building Regulations
Not to be confused with planning permission, building regulation approval determines whether your proposed structure is safe, energy-efficient, and accessible.
Whilst it covers the construction and extension of buildings you may require it for alterations such as a new bathroom or replacing windows and doors. Accurate and precise drawings are therefore particularly important.
Tender and Construction
Tender and construction documents are critical for the appointment of your chosen builder or contractor. The tender element will outline the type of contract along with the proposed schedule of works explaining the materials to be used, the method of construction, and installation. Along with pulling together the tender document, the architect will liaise with the builders in question to answer any questions they may have.
The construction drawings are a graphic representation of how the building is to be constructed and are used throughout the build right through to completion. They are part of a legal obligation between the client and the contractor. A complete set will comprise floor plans, elevations, sections, and detailed drawings.
Construction Inspection and Contract Administration
Once a building is underway it does not necessarily mean that an architect’s work is complete, they can have a role overseeing the build to ensure it is in line with the project requirements and specifications as set out in the contract. They may chair progress meetings, coordinate site inspections, issue practical completion certificates and interim certificates for payment, and agree upon testing procedures.
Project Management
Architects will often manage the delivery of a building project from start to finish. Their understanding of the whole project from the earliest stages ensures they can effectively oversee the specifications, schedule, and budget throughout and ensure they remain on track. This tends to be billed at an hourly rate.
Queen’s Park House kitchen and dining, Queen’s Park, NW London
Examples of how much it costs to hire an architect
How much does an architect cost for an extension in the UK?
It may be surprising to hear that an extension can often cost more than a new build. It tends to be more resource intensive because you are adding to an existing structure which can throw up more complexities when it comes to planning, building regulations, and project management.
To hire an architect to draw up and submit plans as well as building regulation documents and in looking at fees as a percentage of overall costs, for a £250,000 project you could be looking at 14% so £35,000 in fees. This compares to a new build project which could be approx. 9.5% so £23,750. If you employ the architect for other stages such as project management then costs would increase.
Loft conversion architect fees
When it comes to a loft conversion and architects fees, what you pay will depend on the complexity of the project, whether you need planning permission, and the more involved and intricate the work.
For example, lower costs are associated with a rooflight conversion as that requires limited alterations structurally. Whereas adding one or more dormer windows or a full mansard loft conversion will see the scale of fees rise.
You can expect to pay £6,000 for planning for the latter kind of project and a further £7,000 to £10,000 to reach the tender stage and prepare for the build.
Architect costs for a UK renovation
Renovating your home brings with it many benefits from increasing its value to making it more energy efficient and comfortable.
There are of course different levels of renovation project, from a complete overhaul to perhaps installing a new bathroom or kitchen. Whichever route you go down it is important to check whether you need listed building consent before embarking.
If it is a significant project including structural and layout changes, then you can expect to pay approx. £10,000 in architectural fees as opposed to those projects which require less structural work but perhaps call for re-wiring or new plumbing, where the fee may be in the region of £7,500.
Architect fees for a UK new build home
This is often the simplest form of project and therefore may attract the lowest percentage of associated fees.
Generally looking at the fee as a percentage of the overall construction costs for example with a £350,000 build you would be looking at 9.5% so £33,250 in fees, compared to 8.5% so £42,500 for a £500,000 build.
Architect fees for new flats
As demonstrated with a new build the more costly the build the lower the percentage you can expect to pay proportionally when it comes to architect’s fees.
So for a £5 million project you may be looking at fees of £60,000 taking you up to planning permission through to at least £110,000 to get it to the build stage.
The hidden costs of architect’s fees
Hidden costs of traditional architect fees
When it comes to selecting an architect for your project you may be faced with choosing between a large firm or a smaller local practice. Both can present challenges when it comes to managing your budget.
Whilst a larger firm does have more staff to rely on this can mean that rather than the Director who is billing you carrying out the work, it is a lesser qualified colleague.
A smaller firm may present lower upfront costs, but these can be inflated over time should they need to outsource specialisms such as 3D modelling that they cannot do in-house.
Hidden costs of online architects
The initial attraction of an online architect is that as they tend to work remotely, they can offer you lower costs. However, these costs may increase over time as they add services on, i.e seeking planning permission or getting building control approval, this can leave you feeling stressed as the budget mounts up.
Hidden costs of unqualified architects
Becoming a qualified UK architect typically involves seven years of study, comprising five years at university, and two years practical experience. However, individuals who may not be fully qualified or registered as an architect can perform a variety of architectural services using the title architectural designer or draughtsman.
The concern with these titles is that they are fairly vague and broad. As a client, you may not fully understand what skills they have and which services they provide, and as there is no legal requirement to employ a qualified architect for an extension, renovation or construction project things could get tricky and costly if a project becomes complex and the individual in question does not have the appropriate expertise.
Another issue is that should a problem arise with an architect you have employed then if they are a RIBA chartered practice there is a comprehensive complaints procedure with serious professional consequences attached which gives you greater protection.
How to make sure you are hiring a real architect?
The title architect is protected by law in the UK and can only be used by someone on the Architect’s Register so that should be your first point of reference. Only genuine individuals with the correct training and experience will be included on this list.
The other due diligence to carry out is to choose a RIBA chartered practice as they will carry professional indemnity insurance, as well as follow a code of professional conduct, practice, and industry standards when it comes to ethics, equality, diversion, and pay.
How to agree fees?
Transparency and clarity are key when agreeing upon fees with your architect at the start of your project. It is important to understand what you are going to be charged at each stage, what the charges are for, the roles, and responsibilities, and what may not be included.
A proper fee schedule/proposal will list these items along with the number of meetings that may be required and includes all incidental costs such as VAT, planning and building regulations, and other statutory costs.
RIBA has a variety of templates such as the Professional Services Contract which is helpful when it comes to this.
How much do I need to invest to use the architect services of RISE Design Studio?
As we approach each project individually looking at its needs, and constraints to deliver the highest quality result, we need to know the specific scale and scope along with the type of appointment before discussing fees and confirming a budget.
It will depend upon variables including:
The type of building
The size of the building
Complexity of the project
Clarity of the brief
Required service level
Location of the project
Feasibility of the project
In essence however our fee structure is based on the standard scale as earlier discussed:
A fixed fee
A percentage of the project costs
Hourly rate
Queen’s Gate Sky Home during construction, South Kensington, London
Some further examples of architects fees for various project types:
New Build House
Designing a new build house on an empty plot is usually the simplest type of private residential project for an architect, which means that they usually charge a lower percentage fee for this type of work. These figures are only approximate and should be taken as an indication since there may be many other factors to be taken into account (prices relevant to 2023)::
£150,000 budget: architect fee would be 10%
£250,000 budget: 9.5%
£500,000 budget: 9%
£1,000,000 budget: 8.5%
Even though VAT is usually not applicable to the construction expenses of a new home, it’s important to note that VAT still applies to the fees charged by architects and all other consultants involved in the project.
Mill Hill House, Mill Hill North London
Extensions, Basements and Renovations
Working with existing buildings can be very complex, making these projects resource-intensive. There are usually no economies of scale or repetition involved, and it’s important to keep in mind that these types of projects usually involve some element of refurbishing the existing house as well. To achieve excellent design, architects may charge the following fees for extensions (prices relevant to 2023):
£150,000 budget: architect fee would be 15%
£250,000 budget: 14%
£500,000 budget: 13%
£1,000,000 budget: 12.5%
Douglas House kitchen, Kensal Rise
Listed Buildings
Working with listed buildings can be particularly challenging and complex, making these projects even more resource-intensive. Obtaining listed building consent and designing for the alteration or restoration of historic fabric requires an experienced architect with specialist knowledge. Architects may charge the following fees for works to listed buildings: (prices relevant to 2023):
£150,000 budget: architect fee would be 17%
£250,000 budget: 16%
£500,000 budget: 15%
£1,000,000 budget: 14.5%
Queen’s Gate Sky Home living and dining, South Kensington
How much value can RISE Design Studio add to my project?
Poor design can have a significant long-term and expensive impact on a project. Here at RISE Design Studio, we believe that we offer our clients great value for money, peace of mind, and a considerable return on their investment.
Our comprehensive planning expertise means that you will have a higher chance of getting planning permission first time around – and of getting more through planning. For example, for developers, that may mean planning permission to build four houses rather than three– and you can see the profit implications of that.
In another example, with this extension, we added 67% to the value of the house. And with this high-end new build house in North London, we increased the price by 75% – and that’s with construction costs taken into account. This mansard roof extension of a listed building increased the value by £670,000 (using the previous value plus construction costs).
When you take these figures into consideration, you can see why you should regard the fees of a good architect as part of the overall project cost. In addition, with us, you get access to the most advanced architectural software allowing for improved productivity and visualisation along with reduced costs.
On site at Screen 2 at The Lexi Cinema & Hub, Kensal Rise
How can RISE Design Studio help you?
We are a professional team of London-based award-winning contemporary architects who together have years of combined expertise, skill, and project experience.
A RIBA Chartered Practice we work to the RIBA Plan of Work and are continuously evolving our skills and creativity around new technologies and developments to provide the highest quality of design and buildings which are comfortable, beautiful, and energy-efficient.
We believe that in bringing this dedication and wealth of knowledge to each project and our clients we represent a worthwhile investment.
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
At our small contemporary design-led architecture studio, we are deeply committed to creating low energy and low embodied carbon designs that not only address the housing demand but also prioritise environmental responsibility. In this blog, we will delve into the world of backland development, exploring the challenges, opportunities, and the smart approaches to obtaining planning permission for building in your garden.
One bed new build house on a backland site in Brent, NW London
Section 1: Understanding Backland Development
1.1 Defining Backland Development
Backland development refers to the utilisation of land that is not immediately visible from main roadways. These sites typically exist behind existing properties, often forming sections of a garden or small plots of land between buildings. The key characteristic of backland development is the availability of good road access from the rear or side of a property.
1.2 Shifting Policies and Housing Needs
In response to the ongoing population growth and the demand for more homes, local planning policies across the UK are encouraging the intensification of development in already built-up areas. This approach aims to make use of well-connected sites near transportation resources, commercial clusters, and social services. As a result, there is a growing interest in exploring the potential of residential sites, such as large rear or side gardens and scattered land within towns, cities, and suburbs.
1.3 The Complexities of Planning Permission
While there is a push for densification and the utilisation of backland sites, securing planning permission for a separate house in your garden is not guaranteed. Several considerations need to be addressed to increase the chances of a successful proposal. In the following sections, we will explore these considerations and share insights based on our experience.
RISE achieved permission for Red Arches House in Kensal Rise NW London, on a side garden
Section 2: Key Considerations for Backland Development
2.1 Location, Access, and Local Policy
Location plays a pivotal role in backland development. Direct access to the road is essential, which can be achieved through boundary fences, alleyways, or access roads. Ideally, owning the access to your site simplifies the planning application process. Understanding your local authority’s regulations and policies regarding backland developments is crucial for securing planning permission.
Local policies may emphasise the need for developments to be in harmony with the surrounding area and contribute positively to the neighbourhood’s character. While contemporary design solutions are possible, the distinctiveness of the local area must be considered and addressed in the proposed design.
2.2 Access and Neighbour Considerations
Access to the site is not only important for future residents but also for emergency services, pedestrians, cyclists, and cars. The increase in population density resulting from backland developments can raise concerns about traffic and parking among neighbours. Mitigating these concerns through well-designed access and parking solutions is essential.
Neighbouring properties are also crucial considerations, particularly in terms of privacy, overshadowing, and daylight. Design and Access Statements should address these factors from the outset, ensuring the proposed development respects the privacy and outlook of adjacent properties.
2.3 Ecological Impact and Waste Management
The impact on trees, plants, and wildlife is a significant aspect of backland development. Existing vegetation contributes to the streetscape and might be protected, making it crucial to consider the preservation of these natural elements. Commissioning an ecological survey to assess the potential impact on protected species is necessary.
Furthermore, waste management and adequate provision for drainage and sewerage are essential considerations. Connection to the local drainage and sewer system, as well as proper waste disposal solutions, must be included in the planning application.
2.4 Design and Local Politics
Design is a critical factor in securing planning permission for backland development. Achieving a balance between designs that are in keeping with the local surroundings and those that offer a contrast is a delicate process. Researching similar case studies in the area can help guide the design concept.
Navigating local politics and gaining support from neighbours is vital for the success of any backland development project. Maintaining open communication with neighbours from the beginning, addressing their concerns, and involving them in the process can turn potential opponents into allies.
RISE achieved planning for four mews houses on a green open space in Kenton, NW London. Brent Council.
Section 3: Case Study: Overcoming Opposition
At RISE Design Studio, we encountered significant opposition during a recent backland development project in Brent. The proposal involved four new mews houses, which initially received 16 planning objections. However, by carefully addressing each concern through a comprehensive Design and Access Statement, we were able to secure planning permission.
Our approach focused on designing contemporary mews houses that complemented the local character while providing a unique addition to the streetscape. Thoroughly covering all aspects in our initial application and responding to objections with clarity and evidence played a significant role in overcoming opposition.
Frequently Asked Questions
Q1: What is backland development?
A1: Backland development refers to the construction of buildings on land that may not be visible from main roadways, typically located behind existing houses or in small plots between gardens.
Q2: Can I build a separate house in my garden?
A2: The possibility of building a separate house in your garden depends on various factors, including local planning policies, site characteristics, and design considerations. It is essential to conduct thorough research, engage with professionals, and consult with your local authority to determine the feasibility of such a development.
Q3: What are the main considerations for backland development?
A3: Backland development requires careful consideration of factors such as location, access, neighbour concerns, ecological impact, waste management, and design. Understanding and addressing these considerations in a comprehensive manner are vital to obtaining planning permission.
Q4: How can I address neighbour concerns in backland development?
A4: Neighbour concerns can be addressed by involving them from the outset, maintaining open communication, and addressing privacy, overshadowing, and outlook issues in the design. Being respectful of their needs and incorporating their feedback where possible can help alleviate concerns and gain their support.
Q5: What role does sustainable design play in backland development?
A5: Sustainable design is essential in backland development to minimise energy consumption, reduce embodied carbon, and contribute to a greener future. Implementing low-energy design principles, incorporating renewable technologies, and preserving existing vegetation are some of the ways to prioritise sustainability in backland projects.
Q6: How can I navigate local politics during the planning process?
A6: Navigating local politics requires proactive engagement with neighbours and local authorities. Involving neighbours from the beginning, addressing their concerns, and providing clear and evidence-based responses to objections can help build positive relationships. Collaborating with professionals experienced in local planning processes can also provide valuable guidance.
Q7: What are the common design typologies for backland development?
A7: Backland development can employ various design typologies, including mimicking the style of surrounding properties, creating mews-style developments, or embracing contemporary designs that complement the existing streetscape. The choice of design typology should consider local policies, neighbourhood character, and the desire for a distinctive yet harmonious development.
Remember, each backland development project is unique, and it is crucial to seek professional advice tailored to your specific circumstances and local regulations.
The Avenues House, North London
Conclusion
Backland development presents an opportunity to unlock the potential of your garden and contribute to the increasing demand for low-energy, low-carbon housing solutions. By understanding the key considerations, addressing planning policies, and engaging with neighbours and local authorities, you can navigate the complexities of obtaining planning permission. As an architect practice with a focus on contemporary design and sustainability, we encourage you to embrace the challenge and embark on a backland development journey that aligns with your vision and contributes positively to the built environment.
Discover the benefits of partnering with RISE Design Studio for your backland development project. Throughout the years, garden plots have consistently offered abundant opportunities for development, whether situated at the rear, side, or occasionally the front of a property. However, the utilisation of these spaces has been influenced by evolving planning policies.
While obtaining planning permission for backland developments is feasible, leveraging our extensive experience and expertise will greatly enhance your chances of success. Our track record includes a diverse range of projects, ranging from simple extensions, as illustrated above, to ambitious multi-unit proposals.
Irrespective of the scale of your undertaking, we are dedicated to collaborating with you to ensure the viability of your backland or infill development.
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
As the demand for additional living space continues to rise in densely populated areas, homeowners are exploring creative solutions to expand their homes. One such solution gaining popularity is the basement extension. Transforming the subterranean realm into functional and captivating spaces is an exciting architectural endeavour, but it requires careful consideration and expertise to ensure success. In this comprehensive guide, we will delve into the key considerations and vital steps involved in undertaking a basement extension project. As an architect with 20 years of experience in a small contemporary design-led architecture studio, we have honed our expertise in low-energy and low-embodied carbon designs, making us well-equipped to navigate the complexities of basement extensions.
Unlocking the Potential of Basements
While basements may not be ideal for every function due to limited natural light and views, they offer unique opportunities to create exceptional spaces within a home. As an architect, I believe that subterranean spaces are best suited for informal family and entertaining areas, such as a cinema, playroom, or swimming pool. At our architecture studio, RISE Design Studio, we have a proven track record of successfully obtaining consents for basement projects in various locations throughout London, including Richmond, Brent, Camden, Haringey, Westminster, and Kensington & Chelsea.
Red Arches House, Kensal Rise, NW London. Basement level includes a gym, bathroom and guest bedroom
Is a Basement Extension Right for Your Property?
Before embarking on a basement extension project, it is essential to consider several key factors that will determine its feasibility and potential value. Here are some initial considerations:
Construction Costs: Collaborate with your architect to estimate the construction costs involved. On average, a finished basement typically costs between £4,500 and £6,000 per square meter, excluding VAT and fees.
Return on Investment: Assess whether the potential value added to your house justifies the construction cost. Seek the opinion of local estate agents, who can provide insights into the value appreciation your property might experience.
Site Analysis: Conduct a desktop study of your property to identify any potential obstacles or concerns. Investigate what lies beneath or on your site, including watercourses and any history of flooding. Additionally, consider the impact on protected trees, as arboriculturist reports may support tree removal or replacement.
Space Limitations: Keep in mind that retaining walls can be up to 700mm thick, which may reduce the usable basement floor space, particularly in narrow properties.
Red Arches House, Kensal Rise, NW London. Basement level guest bedroom with view to bright lightwell with shade loving plants
Appointing the Right Architect
Selecting an architect who possesses experience in basement extensions is crucial to the success of your project. Architects familiar with local planning policies and technical requirements associated with such projects will be best equipped to guide you through the process. When choosing an architect, consider the following factors:
Relevant Experience: Look for a practice that has a proven track record of working on basement extensions. Their experience will ensure a thorough understanding of the complexities involved.
Comprehensive Services: An architect should provide end-to-end support, from assessing your budget and developing a tailored design to obtaining planning consents, selecting a builder, and assisting during the construction phase.
Securing Planning Permission for a Basement
While some instances may not require planning permission, such as extending an existing basement or cellar in a house benefiting from permitted development rights, most basement extensions in London do require planning consent. Consulting with an architect can provide valuable guidance specific to your situation. Generally, obtaining consent for basement applications should be relatively straightforward since the alterations are primarily below ground level, resulting in less visible impact compared to other types of extensions.
An ingenious way to bring light and views into a Basement, Bayswater, London
Specific Criteria for Planning Consent
During the planning application stage, certain aspects of the basement extension will receive more scrutiny, particularly the lightwell—the primary source of natural light and ventilation for basement rooms. To ensure a smoother planning process, it is essential to be aware of the following criteria:
Lightwell Location: Lightwells are typically supported when discreetly located at the rear of the house. Front-facing lightwells must adhere to design rules, often favouring modest scales. Railings for front lightwells are generally discouraged, with glass paving or flush grilles preferred. Strategic landscaping can minimise the visual impact of front lightwells when viewed from the street.
Basement Size Restrictions: Most London boroughs impose restrictions on the total size of the basement created. These restrictions often align with standard criteria outlined in supplementary planning documents (SPDs). Common limitations include:
The basement should not exceed the property’s footprint, plus a maximum of 50% of the garden area.
The basement should not extend beyond one storey.
Additional basement floors are generally not permitted when an existing permission has been implemented or obtained through permitted development rights.
Understanding the Timeline
A basement extension project requires a meticulous timeline to ensure efficient execution. While the outline design phase may take longer due to the involvement of various consultants, such as basement impact assessors, structural engineers, and construction methodology experts, the overall project timeline can be summarised as follows:
Outline Design Phase: Expect a slightly extended timeframe for this phase due to the technical input required. Consultants specialising in basements, along with structural engineers, will contribute their expertise. The outline design phase typically involves the development of basement impact assessments, construction methodology statements, and structural calculations.
Planning Application Process: Allow for the standard eight-week period from submission to a decision for the planning application. Basements generally fall under householder applications, with the current cost set at £206. For detailed information on planning application costs, refer to our dedicated article on the subject.
Detailed Design and Construction Stages: Keep in mind that the detailed design and construction stages of a basement extension project are likely to take longer compared to above-ground extensions. The additional time is necessary for designing and executing excavation, underpinning of the existing house, waterproofing, and other essential processes.
RISE achieved planning consent for a basement extension with in Westminster
Detailed Design Considerations for Basements
Designing a basement involves careful consideration of various factors to maximise its functionality and aesthetic appeal. Here are some essential aspects to keep in mind:
Views:
Establish visual connections with the outside whenever possible to create a sense of openness and integration.
Incorporate outdoor and indoor planting to enhance your enjoyment of the space, blurring the boundaries between the interior and the natural environment.
Light:
Introduce natural daylight through elements such as roof lights, light pipes, lightwells, or courtyards that channel ambient daylight into the subterranean spaces. Optimise lightwell windows by making them full height to harness the available light.
In sensitive locations, explore creative approaches to conceal roof lights, such as incorporating fishponds or water features with glass bottoms in the garden.
Increase the admission of daylight by chamfering the reveals around windows.
Space Planning:
Consider the depth of room plans in relation to their intended use. Darker areas toward the centre of the plan are ideal for utility rooms or wine cellars.
Maximise floor-to-ceiling heights to create generous and bright rooms.
Utilise light reflective paints and employ light-coloured materials and finishes, especially on floors and ceilings.
Incorporate artificial lighting as needed, ensuring the use of wide-angle lenses and beams to distribute light effectively.
Specify discrete ceiling lights that create soft, ambient illumination on walls and floors, avoiding intense washes of light.
Ventilation, Heating, and Cooling:
Prioritise natural ventilation where feasible, including the provision of opening windows to ensure fresh air circulation.
In cases where mechanical ventilation is necessary for maintaining air quality, opt for low-noise ventilation systems. Seek advice from mechanical and electrical consultants regarding technical performance considerations.
Account for the additional space required to accommodate ventilation plant and mechanical equipment.
Simultaneously improve the thermal performance of the rest of the house, addressing insulation and window upgrades to reduce the overall carbon footprint and enhance internal temperature comfort.
Waterproofing:
The waterproofing strategy for a basement extension is typically site-specific. Your architect will collaborate with specialist suppliers and installers who can provide advice on system technical performance.
On constrained London sites, membrane systems are commonly employed, typically applied to the inside face of concrete retaining walls in conjunction with perimeter drainage. Gravity-fed or pumped sump drainage systems become necessary as the walls outside the membrane remain damp.
Ensure that all waterproofing solutions come with insurance-backed warranties from the product supplier and installer.
Drainage:
Basement works may impact the existing surface and foul water drainage of your property. Plan a suitable strategy from the outset.
Seek guidance from underground drainage specialists, who can advise on the technical performance of drainage systems.
If your basement extends under the garden, ensure that sufficient soil depth remains to accommodate rootball growth for planting and stormwater attenuation. A rule of thumb is to leave one meter of soil depth above the slab.
Keep in mind that specific local authorities may have more stringent drainage requirements.
Existing Cellars and Conversions:
For non-listed buildings, it is usually possible to excavate up to one meter from the existing cellar floor level without requiring permissions. This can significantly improve ceiling heights, addressing a common limitation of existing cellars. Contact us for more detailed information on your specific situation.
Creating a swimming pool often allows for additional basement excavation depth. Local authorities generally support this approach, as the further pool excavation is typically inset from the external walls. It’s important to note that pools are usually not considered “habitable rooms” by local authorities, allowing for relaxed daylight requirements in these spaces.
Unleashing the Full Potential: Basement Usage Options
Basement extensions offer a wide array of possibilities when it comes to their utilisation. The following are popular uses that are particularly well-suited to basement spaces:
Gym, Swimming Pool, and Wellness Facilities: Transform your basement into a dedicated wellness retreat, complete with a spa, Turkish bath, sauna, steam rooms, and fitness areas.
Games Rooms: Create a space for entertainment and leisure, featuring game consoles, table tennis, billiards, or other recreational activities.
Media and Cinema Rooms: Design a home theatre experience within your basement, equipped with state-of-the-art audiovisual systems for the ultimate cinematic immersion.
Playrooms: Devote a dedicated space for children to play, explore their creativity, and have fun in a safe and engaging environment.
Utility Rooms: Optimise your basement’s functionality by incorporating utility spaces for laundry, storage, or any other practical needs.
Libraries: Create a tranquil haven for reading, reflection, and intellectual pursuits, adorned with shelves filled with books and cozy reading nooks.
Music and Recital Rooms: Craft an acoustically treated space for music lovers, complete with instruments, recording equipment, and comfortable seating for live performances or practice sessions.
Wine Display and Stores: Utilise the controlled environment of a basement to house an extensive wine collection, displaying it in an elegant and inviting manner.
Secure Rooms for Valuables: If security is a concern, consider incorporating a secure room within your basement to protect valuable possessions.
Seasonal Storage: Free up space in the main areas of your home by dedicating basement storage areas for seasonal items, such as holiday decorations or winter sports equipment.
Vehicle Storage: Utilise the basement as a secure parking area for vehicles, providing protection from the elements and maximising the use of space in urban settings.
Home Cinema in the Basement of our Richmond House project on Dynevor Road, Richmond
Sustainability in Basement Extensions
As responsible architects, we prioritise sustainable practices and environmentally friendly design principles. It’s important to note that basement developments typically produce higher embodied and construction CO2 emissions over their lifecycle compared to similar above-ground extensions. This is primarily due to the use of CO2-intensive materials, such as concrete.
To mitigate the environmental impact, several sustainability considerations should be incorporated into basement extension projects:
Sustainable Drainage System (SUDS) Strategy: Implement a SUDS strategy to ensure that the below-ground development does not result in additional hard surfaces externally. This helps manage stormwater runoff and prevent flooding.
Insulation and Energy Efficiency: Take measures to enhance the thermal performance of the entire house, including the basement. Insulate walls and replace existing windows with double or triple glazing to reduce heat loss and improve energy efficiency.
Carbon Footprint Reduction: Opt for low-carbon materials and construction techniques whenever feasible. Explore alternative construction methods that minimise the use of concrete, which contributes significantly to embodied carbon emissions, or by specifying Low Carbon Concrete.
The Value of a Basement Extension
In addition to the functional and aesthetic benefits, a basement extension has the potential to add significant value to your property. By expanding the livable space and creating unique amenities, you enhance the overall appeal and desirability of your home. Basement extensions in London typically add between £7,500 and £10,000 per square meter. In select areas of Kensington & Chelsea, Camden, and Westminster, this figure can even reach up to £15,000 per square meter, reflecting the high demand for basement living in these prime locations.
Basement Extensions Under the Garden
Current supplementary planning documents (SPDs) across London boroughs generally support single-story basements with a depth of up to 4 meters beneath the footprint of the entire house, along with up to 50% of the garden area. However, site-specific criteria can sometimes be applied to allow larger basements exceeding 50% of the garden area, especially when neighbouring properties are sufficiently distant. Basements under the garden can be located in the side, back, or front garden, depending on the specific circumstances.
Westminster and Kensington & Chelsea Policies
Westminster and Kensington & Chelsea typically have stricter policies regarding basement extensions, primarily due to the prevalence of “super basements” in these areas. Key policies in these boroughs include:
Westminster:
Flood Risk: Areas along the river in Westminster are prone to flooding, making basements in vulnerable locations unlikely to receive planning permission.
Historic Features: Listed buildings often require the retention of historic features, such as vaults in cellars.
Structural Methodology: A comprehensive structural methodology statement will be required during the planning process.
Drainage Attenuation: Appropriate planter depth of 1 meter should be included for drainage attenuation.
Extensive Pre-Commencement Conditions: Expect more extensive pre-commencement conditions as part of the planning process.
Kensington and Chelsea:
Single-Storey Basements: Since 2014, Kensington and Chelsea only permit single-storey basements.
Floor-to-Ceiling Depth: Concerns regarding the depth of the slab floor to the ceiling are less prominent.
Maximum Garden Area: The 50% rule for the maximum basement size relative to the garden area applies.
Drainage Attenuation: Ensure the inclusion of an appropriate planter depth of 1 meter for drainage attenuation.
Construction Traffic Management Plans: Submission of Construction Traffic Management Plans (CTMPs) is a prerequisite for planning consent.
Structural Engineering Design: A planning submission must include a structural engineering design by a UK-qualified engineer.
Considerate Construction Scheme: Contractors must sign up to the Considerate Construction Scheme as a condition of planning consent.
Acoustic Assessment: An acoustic assessment is often required, particularly for basements located in noise-sensitive areas.
Summary FAQ
To provide a concise summary, let’s address some frequently asked questions regarding basement extensions:
Can you extend your basement? Consider site conditions, potential obstacles, and space limitations. Ensure thorough research regarding watercourses, flooding history, and protected trees. Narrow properties may have reduced usable floor space due to thick retaining walls.
Are basements permitted development? In some cases, a basement extension may fall under permitted development rights. However, certain external features like railings or light wells may still require planning consent.
Can you put a bedroom in a basement? Basements can accommodate bedrooms if they meet the necessary requirements for daylight and ventilation. Planning authorities will scrutinise these factors, and compliance with building regulations may also necessitate a secondary means of escape.
How much value does a basement add? Basement extensions in London typically add between £7,500 and £10,000 per square meter. Prime areas such as Kensington & Chelsea, Camden, and Westminster can command even higher values, reaching up to £15,000 per square meter.
Will I get planning consent for a basement? Adhere to the detailed guidance in your borough’s supplementary planning documents (SPDs) to increase the likelihood of obtaining planning consent. Typically, basement sizes are limited to the area under the existing house plus a maximum of 50% of the garden area, restricted to a single storey in depth.
Embrace the Depths of Possibility
A basement extension presents a world of opportunities to expand your living space, enhance your home’s functionality, and increase its value. However, embarking on such a project requires careful planning, expert guidance, and adherence to local regulations. By collaborating with an experienced architect who specialises in basement extensions and priorities sustainability, you can unlock the full potential of your home’s hidden depths. At RISE Design Studio, we are passionate about creating contemporary, low-energy, and low-embodied carbon designs.
Contact us today at 020 3290 1003 or hello@risedesignstudio.co.uk to discuss your basement extension project and embark on an architectural journey that will transform your home.
West London is an important historic area, that is recognised for its historical, cultural, and architectural significance. There are seven conservation areas in West London, including:
Bedford Park which is located in Chiswick, was the first garden suburb in the world, and features a mix of architectural styles, including Arts & Crafts and Victorian buildings.
Brook Green, situated between Hammersmith and Kensington, is a conservation area is known for its grand Victorian and Edwardian houses.
Chelsea, boasts a number of historic buildings, including the Chelsea Old Church and the Royal Hospital Chelsea.
Ealing, which features a mix of Georgian, Victorian, and Edwardian buildings, as well as several well-preserved public parks.
Holland Park, an affluent area characterised by green spaces and its grand Victorian and Edwardian houses.
Kew, famous for its botanical gardens, is also home to several important historical buildings, including Kew Palace and the National Archives.
Notting Hill, known for its colourful houses, Notting Hill is home to several conservation areas, which include the Pembridge Square and Ladbroke Square Gardens.
The above conservation areas are protected by local authorities and are subject to specific planning policy in order to preserve their unique character and architectural heritage.
RISE Design Studio has been working in the area since being established in 2011 and has helped homeowners transform their homes with creative bespoke designs that are sympathetic to beautiful period houses that the Victorian architects and builders constructed approximately one hundred and twenty years ago.
We are a RIBA chartered practice working in all areas of London as well as Ireland and more recently in Paris and Barcelona. Our services include full or partial architectural service with experience of working on listed buildings (both locally listed and English Heritage listed) as well as sites in London’s many conservation areas.
In Queens Park we have completed projects on many of the streets including Lancaster Road, Golbourne Road, Latimer Road, Balliol Road and Highlever Road.
We collaborate closely with our clients and end users, being deeply invested in ensuring the spaces we design have a positive impact on the people who will end up living in and experiencing the wonders of the new spaces. At the heart of our designs is collaboration and you will very much lead the journey, being consulted at every stage of the process. The end result will be a reflection of your aspirations and lifestyle, the uniqueness of the area and the existing building.
We offer a personal bespoke service, adhering to the programme and budget, and providing the highest attention to detail to deliver life-enhancing architecture and avoiding the common risks of construction.
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
Kensal Green was first recorded as ‘The King’s Wood’ on a broad green at the junction of Harrow Road and Kilburn Lane (later Wakeman Road).
Kensal Rise and Green is an important historic area, with a large number of well preserved Victorian housing and shops dating back to the 1890s.
The neighbourhood extends east and west from Chamberlayne Road, characterised by independent shops, pubs, restaurants and cafes as well as Ark Franklin Primary School. Gentrification of the area began in early 2010s and has brought a new wave of residents to the neighbourhood, drawn by its lower house prices compared to nearby areas such as West Hampstead, Ladbroke Grove, Notting Hill, St John’s Wood and Belsize Park.
RISE Design Studio has been working in the neighbourhood since being established in 2011 and has helped homeowners transform their homes with creative designs that are sympathetic to the beautiful period houses that the Victorian builders and architects built one hundred years ago.
We are a RIBA chartered practice working in all areas of London as well as Ireland and more recently in Barcelona and Paris. Our services include partial or full architectural service with experience of working on listed buildings (bothEnglish Heritage listed and locally listed) as well as sites in the many conservation areas of London.
In Kensal Green and Rise we have completed projects on many of the streets around the park including Purves Road, Burrows Road, Ashburnham Road, College Road, Leighton Gardens, Herbert Gardens, Leigh Gardens, Hardinge Road, Linden Avenue, Clifford Gardens, Bathurst Gardens and Chamberlayne Road!
At the core of our values lies sustainability. We firmly believe that creativity can tackle any practical challenges. Our approach emphasises the use of natural light to enhance physical spaces, promoting the well-being of those who inhabit the spaces. Our starting point is always to listen to your needs, understanding the unique requirements of each of our clients, and celebrating their individuality through meaningful conversations that directly inform the design.
We offer a personal bespoke service and with each project we undertake we go above and beyond to meet your expectations. Combining our knowledge, energy and talents to deliver fantastic client care and striving to make a positive difference to your lives.
If you are currently on the looking for an architect in Kensal Green, please give us a call with us to discuss your home extension project.
Our Burrows Road Glazed Envelope project in Kensal Rise
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
The Queen’s Park neighbourhood and conservation area is an important historic area, with a high level of preserved Victorian housing dating back to the late 1800s. The area’s urban layout is distinguished by its cohesive design centered around the park, which is a good example of a Victorian urban green space. The streets surrounding the park largely comprise of original two and three storey Victorian houses. Gentrification of the neighbourhood began gradually at the turn of the millennium, but in recent years it has accelerated, notably in the 2010s. Pre pandemic has brought a new wave of residents to the neighbourhood, drawn by its lower house prices compared to nearby areas such as Notting Hill, Ladbroke Grove, Belsize Park, St John’s Wood and Hampstead.
RISE Design Studio has been working in the area since being established in 2011 and has helped homeowners transform their homes with creative bespoke designs that are sympathetic to beautiful period houses that the Victorian architects and builders constructed approximately one hundred and twenty years ago.
We are a RIBA chartered practice working in all areas of London as well as Ireland and more recently in Paris and Barcelona. Our services include full or partial architectural service with experience of working on listed buildings (both locally listed and English Heritage listed) as well as sites in London’s many conservation areas.
In Queens Park we have completed projects on many of the streets around the park including Keslake Road, Creighton Road, Hopefield Road, Chevening Road, Harvist Road, Summerfield Avenue, Victoria Road, Dudley Road and Kempe Road!
We collaborate closely with our clients and end users, being deeply invested in ensuring the spaces we design have a positive impact on the people who will end up living in and experiencing the wonders of the new spaces. At the heart of our designs is collaboration and you will very much lead the journey, being consulted at every stage of the process. The end result will be a reflection of your aspirations and lifestyle, the uniqueness of the area and the existing building.
We offer a personal bespoke service, adhering to the programme and budget, and providing the highest attention to detail to deliver life-enhancing architecture and avoiding the common risks of construction.
If you are currently on the look out for Queen’s Park architect, please give us a call with us to discuss your home extension project.
The kitchen and dining area of our Queen’s Park House project
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
