Can I Build a House on my Land in London?

Building a home on your own land is a dream many people share. The ability to customise every aspect of your living space and create a place that perfectly suits your needs and desires is undeniably appealing. However, before you can embark on this exciting journey, there is one crucial hurdle to overcome: obtaining planning permission. Without it, your dreams will remain just that – dreams.

In this comprehensive guide, we will explore the intricacies of obtaining planning permission in the UK from the perspective of an experienced architect with 20 years of experience in a small, contemporary design-led architecture studio. With a focus on low energy and low embodied carbon designs, we understand the importance of sustainable and environmentally friendly solutions in today’s world.

Whether you are considering building on backland sites, Green Belt land, agricultural land, or brownfield plots, we will delve into the specific challenges and considerations associated with each type of development. By providing valuable insights and practical advice, we aim to empower you with the knowledge needed to navigate the planning process successfully.

RISE Design Studio achieved planning permission for Red Arch House in Kensal Rise, NW London

Section 1: Understanding Planning Permission

Before delving into the intricacies of specific types of developments, it is crucial to understand the concept of planning permission itself. Planning permission is essentially the agreement granted by your local authority to allow you to develop land for a building project or a change of use. Local authorities closely monitor all developments to ensure they align with their standards and vision for the area.

The National Planning Policy Framework (NPPF) provides guidelines to all local authorities, which they adapt and customise based on their specific circumstances. In most cases, obtaining planning permission is a requirement when creating a new home, whether it involves building from scratch, extending an existing building, or subdividing it to create additional living spaces.

While some home improvements may not require planning permission, it is essential to understand the procedure to maximise the chances of success. Typically, full planning permission is necessary for new dwellings, including self-contained annexes or entire blocks of flats.

RISE achieved planning permission for Red Arch House in Kensal Rise, NW London
RISE achieved planning permission for Red Arch House in Kensal Rise, NW London

Section 2: Building on Backlands

Backland development refers to building on land that is not visible from public areas, such as roads, and is usually located in already developed areas. This type of development, also known as urban infilling, can include building on a garden plot or a piece of back garden land. Backland development can be carried out by individual homeowners looking to capitalise on their land or by groups of homeowners collaborating on a development.

While backland development has faced opposition and criticism, it can be a viable solution for increasing housing stock in urban areas. If you are considering developing your back garden land or building on your property grounds, several crucial questions need to be addressed:

  1. Is road access available? Easy access to the public highway is ideal for any building plot. If direct access is not possible, having a quick path under your control can still be acceptable.
  2. Will the new building impact neighbours negatively? It is essential to consider factors such as blocking light or affecting neighbour’s’ privacy. Maintaining good relations with your neighbours and accommodating their concerns can significantly impact the success of your planning application.
  3. Does your development include off-road parking? Unless your property is located in a town centre or near a train station, local authorities will likely expect you to provide dedicated off-street parking spaces.
  4. What is the ecological impact of your development? Trees and local ecology must be considered when seeking planning permission for backland development. Conducting an ecological survey to assess the potential impact is often necessary. In some cases, compensatory measures, such as planting new trees, can help offset any negative effects on the natural environment.

To ensure the success of your backland development, careful consideration of local planning policies, architectural design, and collaboration with professionals experienced in this type of development is crucial. By addressing the concerns of both the planning department and the local community, you can increase the likelihood of obtaining planning permission without significant obstacles.

Photo of Green belt in England
UK Green Belt construction, despite concerns for nature conservation, is possible under certain exceptions. Knowledge of these is vital for aspiring homeowners or developers planning projects in these areas.

Section 3: Building on Green Belt Land

Building on Green Belt land remains a contentious topic in the UK. While preserving the countryside and protecting nature and wildlife are valid concerns, certain exceptions exist that allow for development on Green Belt land. Understanding these exceptions is crucial if you wish to build your dream home or develop a housing project in a Green Belt area.

Green Belts are designated zones surrounding major cities, towns, and urban settlements with the primary purpose of preventing urban sprawl. However, not all Green Belt areas are idyllic open spaces; some include already built-up areas. It is important to distinguish between Green Belt land and other protected areas, such as Areas of Special Scientific Interest (SSIs), Areas of Outstanding Natural Beauty (AONBs), ancient woodlands, listed buildings, and flood risk zones.

Certain circumstances may lead to a successful planning application for Green Belt land:

  1. Previously developed land: Some Green Belt land has already been developed. If you can demonstrate that your new buildings will have no more impact on the Green Belt than what was previously there, you have a good chance of obtaining planning permission. Agricultural buildings are not considered previously developed land, although there is a permitted development right to convert barns and stables into homes.
  2. Infill developments: Building in gaps between existing properties in villages can be successful if it has minimal impact on the surrounding area. Such developments fill in spaces without significantly altering the character or landscape of the village.
  3. Affordable housing provision: Meeting the need for affordable housing in rural areas can increase the chances of obtaining planning permission. If your plans align with the local housing plan and address the shortage of affordable housing, your application may be successful.
  4. Exceptional properties: Under the National Planning Policy Framework (NPPF), “Paragraph 80 houses” may be granted planning permission if they enhance the appearance of the local area and compensate for any damage to the Green Belt through exceptional design and sustainability features. If you aspire to build a remarkable, environmentally sound home in a rural setting, this approach may be suitable.

Navigating the complexities of building on Green Belt land requires careful consideration of local policies, understanding the unique circumstances of the land in question, and developing designs that respect the surrounding environment. Consulting with architects experienced in Green Belt developments can help you craft plans that align with local requirements, increasing your chances of obtaining planning permission.

With UK farming in decline, unused agricultural land is becoming available for residential development.
With UK farming in decline, unused agricultural land is becoming available for residential development.

Section 4: Building on Agricultural Land

While many people perceive agricultural land and Green Belt land as similar, the distinction is essential. Agricultural land serves the purpose of food production and other agricultural activities. However, with farming on the decline in the UK, some agricultural land is no longer operational, opening up opportunities for residential development.

Building on agricultural land is not a straightforward process, and it is crucial to understand the challenges involved. The cost of agricultural land without planning permission is significantly lower than that of comparable plots with planning permission. However, assuming that purchasing agricultural land, obtaining planning permission, and making a fortune is a straightforward path is a high-risk gamble.

To increase your chances of success when building on agricultural land, consider the following steps:

  1. Research local housing policies: Understanding the local council’s policies on housing, especially those addressing the housing shortage, can provide insights into sites where development is likely to be approved. If your land is on the edge of a town or within a strategic development area, it may have a higher chance of obtaining planning permission.
  2. Participate in the call for sites: Local councils periodically review their local plans and call for sites to be submitted. This process stimulates landowners and developers to propose potential development sites, including agricultural land. Preparing your land in advance by working with an architect specialising in agricultural property development can ensure you are ready to submit your site during the call for sites process.
  3. Assessment and local plan review: The council will assess the submitted sites through several stages to determine the most suitable options that align with environmental, economic, and social considerations. The selected sites will be included in a draft document as part of the local plan review, and public input will be sought to determine the best options.

Building on agricultural land requires careful consideration of local planning policies, economic viability, and the long-term sustainability of the proposed development. Engaging with planning consultants who specialise in agricultural land development can provide valuable guidance and support throughout the process.

Developing brownfield land, which includes more than just abandoned factories or wastelands, is increasingly viewed as a solution to the housing crisis.
Developing brownfield land, which includes more than just abandoned factories or wastelands, is increasingly viewed as a solution to the housing crisis.

Section 5: Building on Brownfield Land

Building on brownfield land is gaining attention as a potential solution to the housing crisis. Brownfield land refers to previously developed land, encompassing a wide range of sites beyond abandoned factories or wastelands. However, it is important to note that brownfield land does not automatically mean unused or environmentally degraded areas. Many previously developed sites can still possess natural value and require consideration of ecological impact and heritage preservation.

Advantages of building on brownfield land include:

  1. Planning policy considerations: Planning applications for brownfield sites can often be more straightforward due to the recognition that previously developed land is suitable for development. However, this does not eliminate the need to address other factors such as access, parking, neighbour’s’ concerns, and ecological impact.
  2. Availability of land: The National Housing Federation’s comprehensive map provides a valuable resource for identifying brownfield sites across the UK. Investing in property development on brownfield land can offer opportunities to transform underutilized spaces into vibrant communities.

Building on brownfield land requires careful assessment of the site’s suitability for residential use, including access, infrastructure, ecological impact, and local planning policies. Collaborating with architects who understand the intricacies of brownfield development can help you navigate the planning process effectively.

A one bed house on a backland site in Brent
A one bed house on a backland site in Brent

Conclusion

Building your dream home on your own land is an exciting prospect, but it comes with the challenge of obtaining planning permission. By understanding the specific requirements and considerations associated with different types of developments, you can significantly increase your chances of success.

Whether you are exploring backland development, Green Belt land, agricultural land, or brownfield sites, it is crucial to work with professionals experienced in the respective areas. Architects and planning consultants can provide invaluable guidance, ensuring your plans align with local regulations, address ecological concerns, and respect the surrounding environment.

At RISE Design Studio, we are a RIBA chartered architecture practice with extensive experience in residential extensions, conversions, and new builds. Our focus on low energy and low embodied carbon designs aligns with the growing emphasis on sustainability and environmental responsibility. 

If you are considering building on your own land, we are here to help you navigate the complexities of planning permission and turn your dreams into reality. Get in touch with us today to discuss your 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

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

How do I chose an Architect?

Selecting an architect is a critical decision that can greatly impact the success and satisfaction of your architectural project. It goes beyond examining an architect’s track record and past projects, although those aspects certainly hold value. 

Shared Aspirations and Values:

Finding an architect who shares your aspirations and values is paramount. While reviewing an architect’s portfolio is essential to assess their capabilities, it is equally important to delve deeper into their mission and philosophy. At RISE Design Studio, our approach centres around creating sustainable designs that not only enhance the built environment but also align with our clients’ values. By prioritising low energy and low embodied carbon designs, we aim to minimise the environmental impact of our projects. Ensure that the architect you choose resonates with your vision for a sustainable and socially responsible architectural project.

Light House, North Clapham, London

Initiating the Conversation:

Once you have identified potential architects who align with your aspirations, it is time to initiate a conversation. This initial interaction is pivotal in assessing the architect’s suitability for your project. Consider whether you genuinely want to work with them. Do they actively listen to your ideas and concerns? Are they invested in understanding your unique requirements? A good architect will ask thoughtful questions, provide reassurance, and demonstrate their ability to comprehend and address your worries. It is crucial that they explain their work process clearly, avoiding unnecessary jargon and ensuring you have a comprehensive understanding of what to expect. If you anticipate working with other members of their team, it is worth exploring the possibility of connecting with them as well.

Building a Strong Rapport:

Given the collaborative nature of architectural projects, building a strong rapport with your architect is essential. Throughout the process, you will be working closely together, sharing ideas, and making decisions that shape the final outcome. Consequently, it is important to enjoy the company of your architect and promote a good working relationship. Trust and open communication are the cornerstones of a successful collaboration. Listen to your instincts and assess whether you feel comfortable, understood, and inspired by the architect’s approach. Ultimately, your heart, rather than your head, will guide you towards the architect who feels like the perfect fit.

The Lexi Cinema & Hub, Kensal Rise, London

Client Testimonials – A Glimpse into Architectural Excellence:

Client testimonials provide valuable insights into an architect’s capabilities, professionalism, and dedication to client satisfaction. Reading testimonials from previous clients can offer a glimpse into their experiences and help you gauge the architect’s ability to deliver exceptional results. At RISE Design Studio, we take pride in the positive feedback we have received from our clients, as it reflects our commitment to excellence and client-centric approach. Testimonials serve as a testament to the collaborative and inspiring journey we embark upon with our clients. Prior to be engaged we will connect you with previous Clients for you to have a candid discussion on how it was for them to work with us at RISE Design Studio. 


Carousel restaurant, Fitzrovia, London

Conclusion:

Choosing the perfect architect is a critical step towards turning your architectural vision into a tangible reality. While an architect’s track record and past projects are important factors to consider, finding an architect who shares your aspirations, values, and commitment to sustainability is paramount. Initiate conversations with potential architects, paying attention to their ability to listen, ask insightful questions, and provide reassurance. Build a strong rapport with your architect, ensuring compatibility, trust, and effective communication. Finally it’s important to take into account the reviews of previous clients to gain a deeper understanding of an architect’s capabilities and client satisfaction. By carefully selecting an architect who aligns with your vision and values, you will set the stage for a transformative architectural journey that will exceed your expectations.

Why use a London Architecture Practice?

London’s vibrant and diverse built environment presents unique challenges for buying a property, obtaining planning permission, and building your dream home. In this article, we will explore the numerous benefits of engaging with London architecture practices and highlight the significance of local experience when selecting architects. As an architect with over 20 years of experience in a small contemporary design-led architecture studio, our focus on low energy and low embodied carbon designs enables us to provide valuable insights into the pitfalls of not utilising an architect’s expertise. Let’s delve into the reasons why partnering with a London architecture practice is vital for a successful outcome.

Understanding the London Landscape:

A London architecture firm possesses a deep understanding of the intricacies and nuances of the city’s architectural landscape. By comprehending the specific location of a property, an architect can distill the various policies, opportunities, and constraints of each borough, achieving the desired size and design of extensions or refurbishment. The local architect’s expertise maximises the value of every square meter, optimising the potential of your project.

Navigating Planning Challenges:

Obtaining planning consent and successfully building in London’s 32 boroughs demand the right experience and knowledge. By engaging a local architecture firm in London, you benefit from their extensive experience in obtaining planning consent across various boroughs. This knowledge proves invaluable at every stage of the process, enabling effective decision-making. A local architect can provide insights on scaling, massing, external materials, conservation area limitations, Article 4 Directions, basement policies, and listed building issues specific to each borough. Understanding the intricacies of each borough’s planning process ensures a smoother journey towards obtaining the necessary approvals.

The Value of Local Research:

During the early stages of a project, your architect conducts in-depth research on the specific site planning history and immediate context. This research helps determine what is permissible and informs the subsequent design process. By tapping into their local knowledge and experience, architects can navigate potential hurdles and create designs that align with the local environment and regulations. Local research further ensures that your project is sensitively integrated into the existing fabric of the city.

The Hunt for Local Talent:

Identifying leading London architecture firms whose aspirations align with your own can be facilitated through regional design awards. These accolades highlight firms that have excelled in delivering outstanding architectural solutions. Additionally, keep an eye out for local signboards displayed on properties similar to yours, as they often indicate the involvement of architects with relevant experience and expertise.

Screen 2 at the Lexi Cinema during Construction, Kensal Rise, London

The Power of Collaboration:

While architects play a crucial role as the lead consultant, successful projects require a team of specialists with diverse design and construction skills. A reputable London architecture practice will have a network of local consultants, fabricators, sub-contractors and craftspeople who possess the necessary experience and expertise to deliver high-quality projects within time and budget constraints. Collaborating with these professionals ensures seamless coordination and a holistic approach to design and construction.

Understanding Key Consultants:

In addition to the architect, several key consultants contribute to the success of a project. These include the structural engineer, quantity surveyor (cost consultant), and approved inspector.

  • Structural Engineer: The structural engineer ensures the proposed design can withstand various loads and provides crucial services such as site appraisal, structural design, and on-site inspections. They play a vital role in ensuring the safety and stability of the structure.
  • Quantity Surveyor (Cost Consultant): The quantity surveyor provides estimates and advice regarding the cost of construction works. They help develop the project budget, prepare cost plans, assess tender returns, and compile the final account.
  • Party Wall Surveyor: The role of a Party Wall Surveyor in architecture is to provide expertise and guidance in matters related to party wall disputes and the Party Wall Act. When undertaking construction or renovation projects that involve shared walls or structures with neighboring properties, a Party Wall Surveyor acts as an impartial third party to ensure that all parties’ rights and responsibilities are protected. They assess the potential impact of the proposed work on adjoining properties, help draft party wall agreements, resolve disputes, and ensure compliance with legal requirements. The Party Wall Surveyor plays a vital role in facilitating communication and resolving conflicts between property owners, safeguarding the interests of all parties involved in the construction process.
  • Approved Inspector: An approved inspector ensures compliance with building regulations. Their expertise includes assessing initial design proposals, conducting site visits during construction, and issuing the final certificate.
Herbert Paradise, Kensal Rise, during construction

Conclusion:

Undertaking a building project in London without the guidance of a local architecture firm can lead to numerous pitfalls and challenges. The city’s intricate planning regulations, conservation area constraints, and heritage considerations necessitate the expertise of architects who possess a deep understanding of the local landscape. By partnering with a London architecture firm, you gain access to invaluable experience, knowledge of borough-specific planning requirements, and a network of skilled consultants. This collaboration enhances your project’s chances of success, allowing you to create sustainable, low energy, and low embodied carbon designs that harmoniously blend with the city’s rich architectural tapestry. Don’t miss out on the opportunity to bring your architectural vision to life while navigating London’s intricate built environment with the guidance of experienced professionals.

RIBA Plan of Work 2020: A Comprehensive Guide

Architects like most professions welcome industry led guidelines and approaches to inform and improve their work both for their clients, collaborators, and their own progression.

The RIBA Plan of Work 2020 is a guidance document set out by the Royal Institute of British Architects (RIBA) and is seen as the definitive design and process management tool for the UK construction industry.

First established in 1963 to provide a framework for architects to use on client projects to bring greater clarity to each stage of the process, it has evolved over the years to become an industry wide tool.

To reflect the changing approaches to building design, construction and use, and the associated advances in digital technology, increased ethics awareness, and the prioritisation of sustainable outcomes in line with the RIBA 2030 Climate Challenge, it received its biggest overhaul in 2020.

In this article we examine the eight stages of the RIBA Plan of Work 2020. We look at how this formal roadmap, whilst not a contractual document provides vital guidance and helps to deliver successful outcomes for stakeholders by informing the briefing, design, construction, handover, and use of a building.

Each of the eight key stages has an expected outcome; core tasks; core statutory processes in relation to planning and building processes; and crucial information exchanges, all of which impact the success of the next stage.

Stage Zero – Strategic Definition

‘What do you want to achieve from your building project, and what are your best options?’

This stage is not about design or practical details, but rather a chance for us to get to know the client, developing their requirements and helping shape the business case to achieve them.

At this stage all those involved in the client team, alongside ourselves and any other professional advisors must consider that the proposed building project is the appropriate means to meet the client’s stated objectives, and then determine the best way forward.

For example, perhaps a new building is not the answer, and the solution could be refurbishment or an extension.

To come to a decision, information is gathered for each option. This involves examining previous similar projects, the current building if applicable, analysis of project risk (where appropriate site appraisals and surveys carried out), and consideration of project budgets.

We will look at the size, location, scope, and special considerations around the clients’ needs to further refine the vision.

From this exercise a recommendation is made on the best option, and a business case is completed.

Stage One – Preparation and Briefing

‘Developing the initial project brief and setting out the timescales – the official start of the project’

Once it has been determined that the chosen project and site is the best way forward, stage one, is the process of preparing a comprehensive project brief and choosing the collaborative project team, allocating specific roles and responsibilities.

The project team will include:

– Design team – headed up by Lead Designer and overseeing the design programme
 Client team – headed up by Project Manager and overseeing the project programme
 Construction team – headed up by Project Director and overseeing the construction programme

Feasibility studies and site surveys may be required at this stage to test the brief against the chosen site and budget i.e. are there any access issues? Is it a sloping site? What is the spatial overview and relationships with neighbouring buildings?

This is often the time for us to discuss options regarding the site with the local planning authority and make sure there are no constraints. We like to establish clear and positive communication with these departments from the outset.

Discussions around building regulations and other legal requirements should happen at this stage including whether the site is within a listed buildings or conservation area

It is at this point that objectives are finalised and recorded under:

– Project Outcomes
– Sustainability Outcomes
– Quality Aspirations
– Spatial Requirements

Working with the client, we will at the end of this stage, produce a timescale for the project as well as a project execution plan setting out delivery.

Stage Two – Concept Design

‘The design stages begin and the architectural concept is defined ‘

Stage two begins the core design process which culminates at stage four.

We work closely at this stage with the client to produce visualisations, 3D models, and drawings of the architectural concept, ensuring it meets their needs and is aligned to the project brief and cost plan.

As well as a visual representation of the building with sections and elevations and how it sits within the surrounding environment, these will often include:

– Interior and exterior renders
– Landscaping
– Specific requests
– Strategic engineering requirements

There is as the RIBA states ‘no right or wrong approach’ at this point, it is our initial design response to the brief and will involve regular meetings, discussions and reviews with the client and specialist stakeholders including planners and those across structural and civil engineering, to shape and define it.

The robust architectural concept along with the project brief and cost plan are signed off at the end of this stage.

Herbert Paradise, Kensal Rise, North West London


Stage Three – Spatial Co-ordination

‘The co-ordinated design takes form.’

Formerly the developed design stage, here our team draw up the client approved design in CAD or ever increasingly with BIM, and develop and test it alongside detailed structural design, outline specifications, building services and cost analysis to ensure its viability.

Our design will incorporate the practical elements relating to:

– Window, door, stairway, and fire exit locations
– Fixtures, fittings
– Proposed materials
– Load bearing mechanical information
– Mechanical, plumbing, and electrical considerations
– Tech and security
– Green, eco and solar

During this stage, or certainly at the end the design is finalised into a single model, not prone to change, and planning applications are ready for submission incorporating all our detailed drawings and reports.

Arches House – Technical Design Package for Tender Issue

Stage Four – Technical Design

‘Final design stage before construction begins’

We make further refinements of the existing design at this stage, incorporating where relevant detail from specialist sub-contractors such as lighting specialists, kitchen designers or glazing companies.

From this our Lead Architect prepares comprehensive drawings, specifications, and documents for tender.

The level of detail will depend on the size and scope of the project but by the end of this stage all elements will be prescriptive rather than descriptive for the project to be manufactured and built, i.e., they set out detailed descriptions around the following:

– Requirements relating to regulations and standards
– The specific types of products and materials required
– The methods of delivery and installation
– The building systems in place i.e., flooring, partitions, mechanical and structural

At the end of this stage all information required to construct the project is completed and we send out the tender to 3-4 contractors we have worked with before. Of course, should the client want to add to the list we will do so.

Stage Five – Manufacturing and Construction

‘All systems go…construction begins’

The design process is now complete and the appointed contractor takes possession of the site to carry out works as per the schedule of works and building contract. This includes manufacturing off-site and construction on-site.

Stage four and stage five can overlap or run concurrently dependent on the size and scope of the project, or when the contractor was appointed.

The client can choose to appoint us as the contract administrator at this point should they wish. In this role we act as the middle ground between the client and the contractor to ensure that all works are being done in accordance with finalised drawings and specifications. This can entail:

– Chairing construction progress meetings
– Preparing and issuing construction progress reports
– Co-ordinating site inspections
– Dealing with site queries
– Agree reporting procedures for defects
– Issuing project documentation to the client
– Issuing certificates of completion

If appointed, we like to meet weekly with the client and the relevant parties to ensure that everything is running smoothly.

The appointment of Building control by the client should take place, to oversee the project and ensure that all is in order in relation to the necessary construction standards.

Health and Safety inspectors will review and observe the site at this stage, so it is worth considering an independent consultant to ensure that all the correct procedures are followed.

Stage Six – Handover

‘The completed building is finished and handed over’

After practical completion, the building is ready for hand over to the client, and the building contract concludes.

Feedback and building aftercare exercises take place during this stage to act as future learnings for ourselves, the client, contractor, and consultants, and to address any issues relating to the integrity of the building.

These involve light touch post occupancy evaluation and snagging processes, whereby the client compiles a list of defects or incomplete works, overseen by us as the contracts administrator and presented to the contractor to rectify.

They then have an agreed Defect Liability Period, usually six to twelve months to address these, after which if all has been made good, building control will sign off the construction and we will sign off the project as a whole.

We then issue a final certificate, and this stage is complete.

Light House, North Clapham, London

Stage Seven – Use

‘The vision for the building is realised and it is now in use’

This stage starts concurrently with stage six.

The building is now occupied and in use. On most projects, our design team will have no duties to fulfil here.

However, the incorporation of this stage into the RIBA Plan of Work 2020 gives the client the opportunity to get in touch with us if they require general advice relating to maintenance, energy consumption or management of the facilities.

We welcome this communication as we love to hear how the client is finding their new building, and it also allows for effective aftercare, valuable feedback, and building monitoring especially around energy consumption, and is therefore key to the sustainability strategy.

The addition of this feedback stage has made the Plan of Work cyclical as it unites the entire process into one, allowing for proper use of the building and then when demands change, and the building reaches an end of life where refurbishment or a new building may be needed, stage zero starts again.

Embarking on a design and build project can often be a complex one for all involved, for a client it can be daunting.

The RIBA Plan of Work 2020 offers all stakeholders a clear approach to map out the journey collaboratively from vision, through to design, construction and eventual use.

At RISE Design Studios, we find that this straightforward process with realistic and measurable targets, the ability to review progress and a provision for valuable learnings allows for enhanced clarity, greater realisation of vision, and successful outcomes no matter the diversity of projects.

For more information on the RIBA Plan of Work 2020 visit RIBA Plan of Work (architecture.com)

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

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

Discover How To Achieve Your Eco Home

“CO emissions from buildings and construction hits new high” announced the headline from 2022’s Global Status Report for Buildings and Construction. Released at COP27, it paints a gloomy picture of the sectors huge rate of energy consumption and emissions.

Accounting for over 34% of energy demand and approx. 37% of energy and process related CO2 emissions in 2021, the sector is further widening the gap between it and the decarbonisation targets of 2050.

However, amongst this negativity there continues to be pioneering work in eco-friendly architecture and smart low energy homes. Once seen as a quirk of the rich or eccentric, these sustainable, affordable, and forward-thinking properties are springing up throughout the country.

As energy bills continue to rise, and the need to reduce carbon emissions becomes even more critical we look at the growth in popularity of these green friendly and environmentally conscious buildings.

The UK legacy of poor building design

As outlined in a recent Guardian article by Phineas Harper, we have in the UK some of the smallest, oldest, and poorest insulated houses in Europe with more than half built before 1965.

This ageing and inefficient housing stock is the result of mass building predominantly in the industrial revolution which saw small, largely terraced two-up-two down, street facing homes, constructed in narrow streets with poor shading and orientation.

With cooler summers and cheap coal used in open fires, environmental performance and extreme weather were certainly not a consideration!

Deregulation has also led to micro homes springing up, created without planning permission from office blocks and commercial buildings with cramp living spaces prone to overheating with no cross ventilation.

Either too hot in the summer or freezing in the winter, these poorly insulated houses now present a major challenge in the fight against climate change, accounting for 66 million tonnes of emissions in 2019 due to burning coal, gas and oil for space heating and hot water.

As the Building Research Establishment (BRE) states: “The UK has the oldest housing stock in Europe, and most likely in the world. This is largely due to the legacy of dwellings built during the industrial revolution, which still form the backbone of our urban areas today.”

“While still widely valued, these homes present challenges in making them healthy, safe and suitable for the future.”

Whilst new build homes can go some way to offering a solution, the homes which make up most of the country’s stock require retrofit to make them not only habitable, comfortable, and visually appealing for the future, but also to achieve energy efficiency and climate targets.

A zero carbon or low carbon home

When it comes to sustainable architecture and eco homes, there are two main routes to consider, these are zero carbon and low carbon.

Both focus on energy conservation and efficiency through elevated levels of insulation, high performance triple glazed windows, airtight building materials, thermal bridge free construction and mechanical ventilation systems.

The main difference is that in the design of a zero-carbon home the aim is to produce no carbon dioxide through its energy use whereas a low carbon home reduces its emissions to a much more acceptable degree compared to the average property.

What are the design elements of eco homes?

The unveiling of the UK’s first net zero home took place recently in Camden Town.

The UK Green Building Councils Framework awarded the Max Fordham House this accolade in recognition of its emissions as well as its use of natural materials including low carbon cement, timber for the roof, window frames and façade, and wood fibre and cork flooring for internal insulation.

The all-electric home also features a roof-mounted PV to meet 25% of its energy needs with the remaining supplied by a 100% renewable energy tariff.

Much of what it achieved was through the Passivhaus standard of design and construction (or EnerPHit for retrofit). Here the focus is on superb thermal performance, stringent levels of airtightness, minimal thermal bridging, optimisation of passive solar gain, and mechanical ventilation with heat recovery, resulting in homes with a comfortable temperature and minimal energy use, 75% less than a standard home. Heat is generated via sunlight, inhabitants, A+++appliances and LED lighting.

Whilst you may not wish to fully adopt the exacting standards of Passivhaus (or EnerPHit), particularly dependent on your regional climate, home orientation/shape, and whether it’s an existing or listed property, at RISE we will work with you to incorporate a variety of design principles into your new build, refurbishment, or retrofit to create a sustainable home.

  1. Creating an efficient thermal envelope

Insulation is fundamental to any eco home as it has a major impact on heat gain as well as heat loss, and therefore on energy consumption.

Passivhaus design ensures that through insulation levels any heat lost during winter is negligible and that indoor air and surface temperatures are almost similar, ensuring a comfortable climate.

Exterior walls, basements and attics across all homes can benefit from this approach and use less energy, with high performing, non-toxic and renewable insulation such as sheep’s wool, wood fibre, and hemp used to trap heat and create a thermal envelope.

  1. Energy efficient glazing

It is unsurprising that one of the biggest culprits of heat loss from the home is glass with a typical home losing 10%. Whilst Passivhaus requires optimised glazing on the south façade of a property with reduced glazing on the north, if you are looking at a retrofit you can make improvements.

The energy efficiency of a window is measured with its U-value, the lower the number the better. Whilst double glazed windows are normally 1.6, triple glazed can sit at an impressive 0.8 with an energy rating of A++, the highest possible rating and recognised by the Passivhaus Institute as the acceptable standard.

With three sheets of glass, and two gaps, triple glazing your windows where possible, can improve insulation, reduce energy bills, and carbon emissions.

Although costly at the outset they will bring with them multiple benefits for your home especially when fitted to the south-facing side.

Additionally, look at passive design techniques to help create external shade and reduce heat transfer from these windows in summer, such as awnings and overhangs as well as trees and landscaping. This will not affect the heat gain from the low sun in winter.

  1. Renewable Energy Features

Solar energy, heat pumps and biomass boilers are all examples of renewable energy that you can incorporate into the home.

Each allows you to generate your own energy without reliance on traditional sources such as polluting fossil fuels. This then helps to create a carbon positive home in which a building produces more energy than it needs, sending surplus back to the grid.

  1. Greener Construction

This may apply more to a new build project but is also a consideration where applicable for elements of an energy efficient retrofit. Greener construction includes a number of variables and is not just based upon using recyclable materials.

It is part of what makes a carbon positive home, one which uses sustainable building materials to reduce emissions related to production, transportation, and installation.

Consider where the product was made, how it was made, and how far it had to travel to reach site. If we look at the BedZED village, the UK’s first mixed use sustainable community completed in 2002 they were able to use 52% of their materials from within 35miles.

In addition, look at whether you can use reclaimed materials. The same project used, 3,400 tonnes of reclaimed and recycled material representing 15% of the total. For a domestic project this could comprise any manner of things from doors, tiles, and bricks to bathtubs and light fixtures.

Finally, see where you can make changes by selecting eco-friendly and sustainable alternatives, such as those we touched upon relating to insulation as well as bamboo, cork, straw and hempcrete.

  1. Airtightness

For a truly eco-friendly and low carbon home airtightness is a major consideration. This represents the fabric first approach to buildings that are less reliant on space heating.

It focuses on the leakage of air from a house, escaping through gaps and cracks in the fabric of the property. In terms of Building Regulations this means that no more than 10 cubic metres of air can escape per hour for every square metre of the envelope surface area.

To put this into perspective a house achieving 5 cubic metres will see their energy use reduce by up to 40%.

Whilst we talked about windows and insulation earlier, it is also important to look at door frames, open fires and chimneys, pipes, and cables.

The use of specific materials for membranes and barriers such as long-lasting flexible mastic is also key. If constructing a new home, then eco-friendly structurally insulated panels (SIPs) made from timber are a positive choice, manufactured off-site they can help to reduce carbon emissions.

  1. Natural and Mechanical Ventilation

To maintain a healthy and comfortable internal environment in an airtight home, ventilation is a crucial factor.

Airtight properties will often rely on mechanical ventilation with heat recovery (MVHR) systems as well as skylights and natural cross ventilation with windows on each side of the home creating a cross breeze, although the latter is harder in winter and will exacerbate heat loss.

MVHR take moisture from rooms such as bathrooms and kitchens, passing it through heat exchangers which in turn combines it with fresh air coming into the home, releasing this pre-warmed air back into the property.

As it requires ducts to run through the building it must comply with building legislation in terms of installation, design, and inspection, and we can advise you on this.

How an architect will help you achieve your eco home

As you can see whether retrofit, refurbishment or new build there is much to consider when it comes to creating a liveable and comfortable eco home. Here at RISE, we have the experience and skill to help you to achieve your vision.

Our passion in this area has seen continual professional development undertaken across the team with a focus on the EnerPHit standard developed by the Passivhaus Institute. Still a very demanding standard it does relax part of the criteria, recognising the challenges of retrofit projects.

Client led, we look at not only the design and construction of the building, but its eventual end use to ensure that the sustainable house you create is also a home.

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

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

Heat Pumps – the future of home heating?

Unless you have been hiding, you could not fail to realise that UK energy bills are at an unprecedented level. If we believe the press and general whisperings, then predictions are they will triple by 2023 reaching £5,000 for an average household.

These are indeed worrying times and it is no surprise that consumers are turning to low-energy solutions for daily tasks such as cooking, and drying clothes. Of course, the biggest outlay as we approach the UK winter is heating.

The economic crisis as well as greater emphasis on renewable energy to reach net zero emissions by 2050, has shone a light on alternatives to traditional energy with demand growing for solar panels, green roofs, and heat pumps.

With 190million heat pump units in operation worldwide in 2021, global sales increasing by 13% and The International Energy Agency’s latest report stating that no new gas boilers should be sold after 2025 we examine their growth, the advantages they bring to a residential project and what kind of investment they entail.

What are heat pumps?

In its most basic sense, a heat pump is a highly efficient energy device which takes heat or thermal energy from outside and moves it into your home using electricity. During warmer temperatures you can use some systems as a cooling device like air-conditioning.

The amount of power it uses is far less than the quantity of heat it provides, this is known as the Coefficient of Performance (CoP). If a heat pump has a CoP of 3.0 then it will give out three units of heat for every unit of electricity consumed.

Using existing heat means that it does not burn any fuel and therefore emit any carbon dioxide. It is for this reason that it is an incredibly efficient method of heating and has the potential to reduce energy bills.

What are the different types of heat pump?

There are two main types of heat pump available air source heat pumps (ASHP) and ground source heat pumps (GSHP).

Both work on the same principle to transfer heat but differ in the source of that heat. Which you choose depends on budget, installation, efficiencies, and your home.

  • Air source heat pump

These are the most common system in the UK for domestic homes representing 87% of all heat pumps installed. You fit an air source heat pump (ASHP) to the outside of your home, either to the front, side or the rear (planning permission may be required).

With this system the heat from the external air is used to heat your home/hot water by pumping it through a system of refrigerant filled coils fitted to the outside of the unit (the evaporater), like those you find behind your fridge.

The liquid in the coils absorbs the heat and as it warms up begins to evaporate, this gas then goes through a compressor to increase the temperature. The coil then moves inside the building releasing the heat to inner coils which heat the house and/or water that supplies radiators, showers, taps etc. The refrigerant flows back outside to absorb more heat and the process begins again.

An air source heat pump can extract heat from temperatures as low as -15degrees Celsius to provide heating all year round.

There are two distinct types of air source heat pump (ASHP), air-to-air and air-to-water.

Air-to-air heat pumps: these take external heat and transfer to your home through fans or blowers. A warm air circulation system then moves it around your home.

They cannot heat hot water so you would need to look at an alternative such as an immersion heater. In the summer they work on reverse like an air conditioning unit.

They tend to be an excellent choice for smaller properties and are quick to install as they don’t require radiators or underfloor heating.

Air-to-water heat pumps: these take heat from the air outside and feed it into your water-based central heating system and your hot water cylinder to store hot water for when you need it.

As it has a lower heat supply than gas or oil boilers, 35degrees to 45 as opposed to 75degrees, an air-to-water heat pump is used most efficiently with large or double panel radiators or underfloor heating which have a greater surface area.

  • Ground Source Heat Pump (GSHP)

These take heat energy from pipes beneath the ground outside your home to power your heating and hot water.

Thermal transfer fluid (TTF) or brine, a combination of cool water and antifreeze flows around the loop of pipe buried in the garden or outdoor area. The pipe absorbs the heat from the ground into this fluid which then passes through a heat exchanger into the heat pump. This action raises the temperature of the fluid and transfers the heat to water.

The ground stays at a constant temperature below the surface allowing the ground source heat pump to work efficiently all year.

You will need quite a large amount of garden or ground to use a GSHP.

What are the benefits of heat pumps?

It is hard to ignore the popularity of heat pumps particularly in their ability to reduce energy bills as well as lowering carbon footprint.

There are a variety of additional benefits that will no doubt see demand continue to grow, as they become an increasingly attractive alternative to gas boilers.

  • Lower running costs –recent reports from the National Endowment for Science and the Arts (Nesta), state that a heat pump can reduce household gas consumption by up to 70% when compared to a gas boiler.
  • Reduces carbon emissions – as heat pumps use little electricity, they produce no emissions making them environmentally-friendly. They are also extremely sustainable as they are using natural heat sources whether from the ground or air.
  • Easy installation – it can take as little as two days to install an ASHP this might increase slightly with a GSHP due to the requirement to excavate slightly.
  • Longevity – a modern heat pump usually has a life span double that of a domestic boiler, on average 20-25 years, future proofing your home both economically and environmentally.
  • Less maintenance – they have very few moving parts, with yearly checks advised but they can be carried out by the owner such as clearing leaves, dust, and cleaning filters. A certified professional installer would need to visit every 3-5 years to look at any technical aspects.
  • Safety – as they rely on renewables and electricity as opposed to fuel, and with few moving parts, they are a safer choice than traditional systems.
  • Eligible for Government incentives –there are financial incentives for installing heat pumps which we will outline.

How much does a heat pump cost?

It can be expensive to install a heat pump, but this will depend on the type you choose, your installer, the size of your home, its insulation and running costs. A typical price for a full installation is between £7000 and £45,000.

Air to water heat pumps start at approx. £7000 reaching £18000, whereas ground source heat pumps can cost up to £45,000.

Although upfront costs are high, switching from your previous system should save you running costs in the long-term dependent on your tariff, which system you use, your home and its central heating system.

The Boiler Upgrade Scheme launched in England and Wales helps homeowners afford the upfront costs of installing low carbon heating systems such as heat pumps with grants of £5000 available. Open until the end of March 2025, the work must be carried out by an accredited MCS installer.

There are eligibility criteria including that you must own your home, and it needs an up-to-date Energy Performance Certificate (EPC).

Do I need planning permission for a heat pump?

Due to Permitted Development Rights, in most cases it is unlikely that you will need planning permission if installing a heat pump.

However, it is of course dependent on the property and the local planning department. This is especially important if the property is listed or within a conservation area.

You will have to inform your local district network operator (DNO) that you are installing a heat pump as they are responsible for bringing electricity from the network to your home. Your installer will advise on this.

Here at RISE Design Studio, we can help with any discussions you may need to have.

How an architect can help with a heat pump

Whilst most homes and residential projects will not require planning permission to install a heat pump, it is worth appointing an architect if you are keen to pursue it.

Whether you require planning or not, there are certain things to bear in mind should it be a retrofit, refurbishment, or new build project which may have other installations taking place:

  • What will the aesthetic impact be with regards to an ASHP that fits to the side of your property?
  • You will need to ensure no trees etc block its position
  • Positioning of the ASHP will need to be in a sheltered spot
  • A GSHP will require groundworks, these could be disruptive, so you want to ensure you carry these out correctly
  • If you wish to install an underfloor heating system

As we continue to navigate this unchartered territory of rising energy costs, and we look to do more to achieve sustainability, the growth of alternative energy technologies such as heat pumps is no longer niche but rather an inevitable part of our future.

To get ahead and investigate whether heat pumps are right for your project, please do get in touch at mail@risedesignstudio.co.uk or give us a call on 020 3290 1003

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

Unveiling the Larger Home Extension Scheme: A Comprehensive Guide

As an architect with over two decades of experience in creating thoughtful, sustainable designs, I’ve encountered countless homeowners who dream of extending their homes. Perhaps you’ve often wondered about the possibilities a large extension could bring to your living space? Many share this dream – a chance to transform their home into an expansive haven filled with creative, exciting interior spaces that they love. If that sounds like you, then you’ve landed in the right place.

However, an inevitable question soon follows: How big can you build? How far can you extend? Well, I have some good news for you. Under the ‘prior approval larger home extension mechanism’ and thanks to permitted development rights, you can build a significantly large house extension.

In today’s discussion, we’ll delve into the nitty-gritty of this process. We’ll explore the prior approval procedure in detail, provide insights into how to extend your terraced, semi-detached, or detached house, and guide you through the specific conditions you need to comply with for a prior approval house extension. I’ll also share tips on how to sail smoothly through the neighbour consultation scheme and get your consent with ease. So let’s get started.

What is the Prior Approval Mechanism for Larger Home Extensions?

First, let’s understand what the prior approval mechanism is. According to Part 1 Class A of the permitted development rights, you can construct a large single-storey rear extension as long as you meet the requirements of the Town and Country Planning (General Permitted Development) (England) Order 2015, without seeking explicit planning permission. This is often referred to as the prior approval larger home extension mechanism, or the neighbour consultation scheme.

So how large can your extension be if you use a prior approval application? In a terraced or semi-detached property, permitted development rights allow you to extend the rear of your house by up to six metres. In a detached property, the allowance extends to a whopping eight metres. Quite a spacious addition.

However, you must remember to take these measurements from the original rear wall of your property and adhere to certain conditions, which we’ll explain shortly.

Which Properties are Excluded from the Neighbour Consultation Scheme?

The prior approval legislation for larger house extensions does exclude some properties from the scheme. These include flats or maisonettes, statutorily listed buildings, properties within a conservation area, National Park, area of outstanding natural beauty, World Heritage Site or a site of special scientific interest, and properties that have had permitted development rights removed due to a planning condition or through an Article 4 direction.

If your property falls into one of these categories, you won’t benefit from the prior approval for a larger home extension scheme. But don’t worry – I can assure you there’s still a solution. A very large house extension is still possible by submitting a householder planning permission with the aid of professional extension architects. The end results are often the same or even better.

What are the Conditions I Need to Comply with to Build My Large House Extension?

Building your dream extension will require you to meet certain conditions as per Part 1 Class A of The Town and Country Planning (General Permitted Development) (England) Order 2015. I’ve summarised these for you below:

  • Your proposed extension should be a single story.
  • If the extension goes beyond the line of the side of your house, it can’t be wider than half the width of the existing house.
  • The proposed extension should not exceed 4 meters in height, as measured from the highest point of natural surface ground.
  • If your extension is within two meters of the boundary of the house, the eaves of your proposed extension should not exceed three meters in height.
  • The proposed extension should cover no more than half the area of land around the original house (as it was on 1 July 1948 or if it was built later, as it stood when built).
  • The materials used should match the existing appearance of your house.

Adherence to these conditions is crucial. Failure to comply may result in your application being rejected.

How to Apply for Prior Approval to Build a Larger Home Extension

Submitting your prior approval application for a larger home extension allows you to build an extension between 4 and 8m in length beyond the original rear wall for a detached house and between 3 and 6m for all other houses. However, to build under the prior approval neighbour consultation scheme, you need to apply to your council for prior approval – a process distinct from a typical planning application.

This application allows your council to consider whether your proposed extension meets the conditions outlined in the prior approval legislation and the likely impact of your extension on your neighbours’ homes. When submitting your application, be sure to provide the following information:

  • A detailed description of your proposed extension.
  • Planning drawings with existing and proposed floor plans and elevations, along with measurements.
  • The addresses of any adjoining premises.
  • Your contact details.

Remember, construction should not commence until the notification and prior approval process is complete. If the extension is already built, you’ll need to submit a retrospective full planning application, which I would advise against.

What Happens When You Submit a Prior Approval Application?

After receiving your prior approval application, your council will consult your adjoining neighbours by letter, initiating a minimum consultation period of 21 days. If your council doesn’t receive any comments within this period and decides that your proposal meets all the necessary conditions, your extension will be considered permitted development, meaning further planning consent is not required.

If your council doesn’t decide within 42 days from the date the application is valid, you have the right to submit an appeal to the Planning Inspectorate for non-determination.

What Happens if My Neighbours Object to My Prior Approval Application?

If your neighbours object to your proposed development, your council must assess the impact of your extension on all adjoining premises’ “amenity”. If further information is required at this stage, your extension architects and planning consultants can submit factual evidence to prove that your extension won’t detrimentally impact neighbouring properties. After assessing your application and any objections received, your council will issue a decision.

Can My Council Refuse My Large Home Extension Application?

Achieving approval for a planning application, including a prior approval application, requires a fair amount of skill and experience. If your application gets refused, you have the right to submit an appeal to the Planning Inspectorate against the refusal. The local planning authority cannot consider any other planning matters when determining a prior approval application.

Can I Start Building My Extension Straightaway?

You should not commence construction of your large house extension without receiving a written notice from your council. Following approval, the next stage is seeking building control approval before commencing construction work. Be sure to notify your council as soon as reasonably practicable after the completion of works.

How Can RISE Design Studio Help You?

RISE Design Studio is a London-based RIBA Chartered Architecture practice. With a special focus on design and planning strategies and expertise in residential extensions, conversions, and new build homes, we help homeowners create spaces they love living in.

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.

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

The Rise in Popularity of Green Roofs

Living roofs or green roofs, were until recent years a rarity in the UK building landscape, seen as a luxurious design addition implemented by the few with adoption much greater in countries such as Switzerland and Germany.

Today, alongside other forms of sustainable architecture and design, or green technology, they are growing in popularity.

Seen as not only aesthetically pleasing in densely populated urban areas, but increasingly as a method to reduce energy use and carbon emissions, they are key along with green walls, roof terraces, and solar to improving our resilience to climate change and safeguarding our environmental future.

Green roof provision has grown considerably across the capital as shown in the 2019 London Green Roof Report this has been in part to key policy drivers like the 2008 amends to the London Plan, stating in planning policy 5.1 ‘the Mayor will, and boroughs, should expect major developments to incorporate living roofs and walls, where feasible’ .

With this in mind, we examine green roofs, the distinct types, the benefits they bring, architectural and design considerations, and the future outlook.

The Lexi Cinema extensive green roof

What are green roofs?

Installed on flat or low-pitched roofs with an angle of no more than 30degrees, green roofs also referred to as living or eco roofs are found on small residential buildings through to large commercial and industrial buildings.

They consist of engineered soil (substrate) especially designed to hold the correct amounts of moisture, nutrients, and air for successful plant growth. They are either intensively or extensively planted with vegetation, then laid over a waterproof membrane or moisture retention fleece to prevent leakage and remain watertight in all conditions.

As well as these elements, a typical green roof layer/system will consist of a root barrier, thermal insulation, and drainage/irrigation systems.

They offer minimum or maximum levels of pedestrian access and use dependent on space and roof structure, and with grasses, herbs, mosses, and wildflowers can improve biodiversity by providing a habitat for birds, and insects.

In addition, they have an array of environmental benefits which we will discuss further on.

What are the different types of green roof?

There are three main types of green roof, intensive, extensive, and semi-intensive. Each differ and are unique in terms of use, maintenance, design implications, weight, and cost.

  • Intensive green roof

You will typically see an intensive green roof or roof garden designed for accessible recreational use on large commercial buildings such as those at Jubilee Park in Canary Wharf, 55 Broadway, or at New Providence Wharf in Docklands which covers an area of 8.3 hectares. Prince of Wales Drive is a good example of an intensive green roof in a residential setting.

Due to the scale of an intensive green roof and with its tendency to feature extensive lawns, trees, paved areas and even water features they can weigh a significant amount and usually need to be designed with a heavy-supporting structure typically with reinforced concrete to take a load of up to 200kg/m2.

The soil on an intensive green roof is planted quite deeply at over 200mm and once planted are labour intensive requiring regular maintenance, fertilisation, weeding, and pruning.

Due to their need for regular watering, they will have dedicated rooftop irrigation such as a dripline system laid below the soil surface at root level.

Considering all these factors, they are the costliest green roof.

  • Extensive green roof

Compared to intensive green roofs, extensive systems are lighter in weight (40-110kg/m2) and are shallower ranging from 2cm to 12cm in depth, because of this they require less maintenance normally just once a year weeding, are less costly, and can be self-sustaining.

Their shallow depth means that extensive green roofs in London and the UK tend to comprise of hardier sedum or stonecrops. Sedums are low growing succulents (which store water) which look to be sitting on the soil, with the word coming from the Latin ‘sedeo’ which means to sit.

It is because of their shallowness that they do not add great weight to a roof, they also tend to be drought and frost proof which means they require little watering.

Easier to implement, a popular choice is to use a pre-grown sedum mat-based system incorporating a variety of plants and flowers. Delivered as a roll, they are typically, 20mm thick, and laid out onto crushed brick or light clay aggregate, with a waterproof layer often on top.

They are a good option in comparison to loose planting which is more labour intensive as it involves preparing the ground, laying the soil, sowing seeds, and then maintenance. However, there are UK nurseries that now supply plants and advice for green roofs

Due to their minimal maintenance, and relatively low cost, extensive green roofs are the preferred choice for residential properties. Although you can find them in commercial settings such as at Canary Wharf which has 5000 to 6000 square metres incorporating five extensive green roofs. This makes it one of the largest green roof spaces in the UK.

Here at Rise Design Studio we used a sedum roof on our Lexi cinema project in London’s Kensal Rise, with our work being shortlisted for a prestigious 2022 FX International Interior Design Award.

Semi-intensive green roofs

These are of course a cross between intensive and extensive green roofs, with slightly greater depth than the latter.

They include a wider variety of plants compared to an extensive green roof, often akin to a wildflower meadow, therefore they require moderate maintenance, fertilisation, and watering.

What are the benefits of green roofs?

Whilst appealing in terms of breaking up the monotony of the urban landscape, along with the resultant inner-city opportunities for recreational and social green space and general improvement in wellbeing and productivity, the principal benefits of green roofs are extensively environmental.

  • They help to improve and preserve urban biodiversity by creating habitats for animals, birds, butterflies, and insects. Some of which may be endangered and at risk of extinction such as Black Redstarts whose preservation was a part of the driving force behind many early London green roofs
  • They help to cool building temperature and improve insulation by absorbing heat therefore reducing the ‘urban heat island’ phenomenon, decreasing surface air temperature by up to 16.4 degrees
  • They improve air quality by producing oxygen
  • They can contribute to reduced air pollution by removing harmful toxins from the air including nitrates and carbon dioxide
  • Help to reduce flooding and improve stormwater management, as they can absorb anywhere between 50% and 100% of rainwater, and then release it through condensation and transpiration
  • Reduce the need for air conditioning and heating requirements leading to less emissions and more efficient energy consumption as they cool the building in summer and warm it in winter
  • Improve noise and sound reduction
  • They can produce opportunities for urban agriculture

Such is their environmental impact, that the UK Green Building Council has called for all new buildings and infrastructure to have ‘nature-based solutions’ such as green roofs, by 2030 to combat the ever-growing threat of global warming.

In addition to this, other benefits are that a green roof can add value to your property due to its appearance and the fact it contributes to reduced energy costs, as well as roof longevity by protecting it from natural exposures.

Green roofs in London

In comparison to major cities worldwide London has been ‘late to the party’ when it comes to green roofs. Much of this down to policy implementation, or lack of.

However progression was made with the 2008 amends to the London Plan, the spatial development strategy for Greater London, which saw a much more proactive approach to green roof adoption and greater policy towards urban greening as a whole.

This was echoed by the 2019 creation of the Urban Greening Factor by the Greater London Authority (GLA) which measures the quantity and quality of greening on any new development proposal at the planning stage.

The effectiveness of both of these measures is demonstrated by the recent City of London monitoring reports, on the subject, which show that between 2011/12 and 2019/2020, green roofs went from 23 to 64, covering an area, from 8,200m2 to 25,900m2. This London City Hall map shows the location of these green roofs.

City of London projects that in 2026, green roof spaces which are predominantly extensive will comprise of 82.

There are currently a number of major innovative new green developments planned for the city such as Google’s new Kings Cross headquarters which promises to have a ‘grass-laden plateau’ and ‘green walkways’ as well as an extension to Blackfriars Crown Court which will be topped by a 100-tree forest and a retail development in Greenwich which is to have one of the largest green roofs in the borough.

Nationwide the Government are set to launch further incentives related to planning through The Environment Bill which contains a provision that all planning applications increase the biodiversity of the site in question by 10 per cent. The aim is to leave nature in a better state than before.

How much does a green roof cost?

Costs will vary dependent on the green roof system and the property in question, and whether professional contractors or landscape designers are employed

A professionally designed and installed extensive residential green roof can cost from £50 to £100 per square metre.

This cost is just an average and it will depend on things such as whether the roof needs extra support, how accessible the roof is, and which plants you are using.

Do I need planning permission for a green roof?

Due to Permitted Development Rights, in most cases it is unlikely that you will need planning permission if installing a green roof on an existing residential building, such as a garage or garden shed.

However, it is of course dependent on the property and the local planning department. This is especially important if the property is listed or within a conservation area.

Building regulation approval will be needed if it is a new build or an extension/alteration to a current one, this is due to load capacity and fire regulations.

As part of a new build planning application for large-scale developments, they can be beneficial in terms of gaining credits with BREEAM (Building Research Establishment Environmental Assessment Method) which assesses a building’s environmental performance.

How an architect can help with a green roof

Green roofs are becoming a significant part of architectural design and innovation, after all design is about more than creating buildings of beauty but rather achieving multi-functional buildings that add to and enhance people’s wellbeing and their surroundings, for present and future generations.

When considering a green roof for your home or property, employing an architect such as our team at Rise Design Studio, will help ensure that you get the desired effect and result with all implications considered in reference to the Green Roof Code of Best Practice:

  • They can help you understand the slope of the roof, maximum load capacity (when saturated, snow covered or through pedestrian access), and structure
  • Which green roof system will work best for your vision, location, and use, based on the above
  • They will look at orientation, wind exposure, sunlight, and shading
  • Examine the impact on areas such as skylights, vents, and chimneys
  • Determine what planning permissions are required if any
  • How roof access and egress will work based on safety and the system you employ
  • Offer guidance on the most appropriate water management and drainage
  • Specify fire safety requirements as related to building regulations
  • Help advise on external contractors/manufacturers, and manage that process and overall project management
  • Look at the proposed maintenance schedule

There is no doubt that green roofs look great and it is not surprising to see their popularity grow, but more than their aesthetic appeal, they sit alongside solar, and wind turbines, as sustainable energy solutions that counteract greenhouse gas emissions and encourage biodiversity.

We each understand that climate change is happening now, employing a green roof whether it be on a home or commercial building is a step to addressing this challenge. It is positive to see that the Government is keen to increase the uptake and prevalence of them especially in larger cities.

For further information on the forward-thinking green roof design techniques RISE Design Studio can bring to your project please contact mail@risedesignstudio.co.uk or give us a call on 020 3290 1003

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

Mansard Roof Extensions


A feeling of lack of space within the home is a common issue nowadays. No matter the size of family or household an often-limited floorplan means there never seems to be room to grow or do the things you want to.

Home working and modern life has brought this issue of lack of space to the fore, but with house moves expensive, disruptive, and stressful, more homeowners are left asking, “How can I stay in my community, create more liveable space and a better family lifestyle?”

With limitations around side and rear extensions particularly in densely populated urban areas such as London, the option which presents itself is to extend upwards. In this article we examine how to achieve this with mansard roof extensions.


These extensions effectively add an extra floor to a property by raising the ceiling height. Throughout the years they have proved to be an affordable and aesthetically pleasing solution for homeowners, particularly those living in Victorian and Georgian terraced properties built for smaller families over a century ago.

What is a mansard roof?
Before we look at mansard roof extensions, we need to examine what a mansard roof is. Sometimes confused with a gambrel roof, a mansard roof often known has a French roof or curb roof, has two slopes on each four sides. It is less steep at the top and very steep at the sides, the top is often flat or very nearly flat.

The lower slope characteristically contains box-shaped dormer windows (a window typically set vertically into a sloping roof).

Built to the front or the rear of a property usually with natural slate, when viewed from the ground, the upper slope is rarely visible.

There are design variations and which one a client chooses will depend upon the environment in which they live and the structure of their home. The variations are:

Straight: slight slope on the upward panel portion
Convex: curved outside on its lower slope portion
Concave: curved inside on its lower slope portion, with a steep angle on the bottom

History of a mansard roof
We can trace the earliest known example of a mansard roof back to French Renaissance architect Pierre Lescot (1515-1578) who designed a double pitched mansard roof for the Lescot wing of the Louvre in 1550.

One of the most influential buildings of the Renaissance, this led to Francois Mansart (1598-1666), an accomplished architect of the French baroque popularising the design and giving the roof profile his name.

Seen as elegant, effective, and fashionable, the adoption of mansard roofs became widespread in Europe and North America following Haussmann’s renovation and rebuilding of Paris in the 1850s as instructed by Napoleon III.

Alongside the transformation of the city’s boulevards and public buildings, this saw modern apartment buildings created, characterised by mansard roofs and cream coloured limestone, such as those found to this day on Boulevard Haussmann.

His work underpinned a wider architectural movement, second empire style marked by an eclectic and decorative style which flourished between 1852 and 1871 and was widely used in large municipal and corporate buildings such as The Palais Garnier.

Mansard roofs in London
It was not until the late 18th Century that mansard roofs appeared in London and grew in popularity during the Georgian and Victorian eras due to a lack of space, replacing the traditional butterfly roof associated with terraced properties.

Named the London roof due to the prevalence within the city, the Victorian butterfly roof or a V roof is characterised by the inversion of a standard roof form, two surfaces which slope down and meet with a valley gutter in the middle. The look is of a butterfly’s wings hence the name.

The slope of this roof at 37.5 degrees allows them to accommodate a mansard roof extension building a mansard roof with a 70-degree slope, which effectively adds an extra floor to a property.

The very reasons why homeowners desired mansard roof extensions in the 18th and 19th Century exist up until this day, particularly in crowded and space-starved London as a front and rear extension allows up to 32.5sq m of generous indoor space compared to a loft conversion which may only add 23sq m.

This typically means an additional double bedroom with en-suite, or multi-functional open plan family living space. They can where practical also offer the opportunity to incorporate a roof terrace.

Compared to adding a rear or side extension this is a cost-effective way for people to maximise their living space and remain in their communities. It also in most cases adds significant value to the property.
Today mansard roof extensions are widespread across London with a desire by homeowners to ‘improve not move.’ They are particularly prevalent areas such as Fulham, Hammersmith, Kensington, Primrose Hill, Paddington, Bayswater, and Notting Hill.

At RISE Design Studio we have worked on a variety of London based projects which have seen the replacement of the traditional butterfly roof into a mansard roof extension such as our Queen’s Gate Sky home project in South Kensington.

Mansard roof extensions and roof terraces
In London as with any densely populated city private outdoor space is at a premium. As well as extra living space a mansard roof extension where feasible can give clients the option to add in an enviable external roof terrace.

They also add considerable value to a property with reports saying this can be between 10% and 30%. As with a mansard roof extension this return in investment is far greater than the outlaying costs.

Mansard roofs and planning
Due to the architectural importance of uniformed British terraces built in the 18th and 19th century, and their historical significance within London, successive Building Acts and Building Regulations governing height, windows, chimneys, and materials have meant that the design and form differs to that in France and other European countries.

In some areas such as Tower Hamlets in Bow, the design was even banned in the 1990s as local heritage officers felt it affected the look of the traditional London ‘butterfly’ roof. It was also in part because many of these historical terraces had survived the Blitz. This decision was reversed in 2017 with a view to have a more ‘permissable approach’.

Today in Bow and across London, it is almost always necessary to apply for full planning permission to construct a mansard roof. As discussed, this is due in part to historical significance as well as the structural alterations and the implication on the current roof profile.

All alterations conducted need to preserve the structure, character and appearance of a building looking at how that property fits into the wider context of the street and surrounds.

In conservation areas it can be difficult to get planning when the property sits alongside others which remain unchanged. However recent developments such as those in Primrose Hill, and across London, have seen neighbours come together so that several adjoining properties or a whole terrace applies at the same time.

This helps achieve uniformity, timeless design, and avoid the strange uneven ‘gap-tooth’ effect where some houses have extended upwards, and others have been refused.

A group application such as this can cost as little as £339 and as long as owners are informed you do not need their permission to proceed with the application. Furthermore, normally once planning is granted you have three years before it lapses so in practice as long as the person who made the application begins work in that time the other households don’t need to.

This kind of group application may be stemmed in the future due to the introduction of Community Infrastructure Levies for those applications adding more than 100 sq m (1076 sq ft) of floor space to a street. Consideration for smaller batches of group applications may need to be the way forward.

It is essential when applying for listed building consent whether individually or as a group, to hold pre-application discussions with the conservation officer within the local authority at an early stage, this helps avoid later problems and establishes a clear line of communication.

Our professional team will consult with the appropriate departments throughout the process from design through to build. We will also assist with Party Wall Agreements which are required if the work impacts on adjoining properties.

In addition, many local authorities have published residential design guides if they are in an area with a high number of mansard roof extensions. These guidance notes such as this one from City of Westminster Council will answer questions including:

– Maximum floor to ceiling height allowed – 2.3m
– Maximum pitch of the front and back walls, usually 72-degree angle – set back from existing elevation
– Which materials to use in line with the appearance of the building

The local authority planning department will inspect the renovations to ensure that all of the regulations are followed.

With considerable experience in historic building renovation, planning applications, and mansard roof extensions we guide clients through the process to put forward the strongest case for their design. Our applications are always supported with photographs and detailed architectural drawings in line with PPG15 ‘Planning and the Historic Environment’.

If you live in an area where there are no listed buildings,’ then it is easier to gain planning permission under permitted developing rights. These allow you to perform certain works without the need for planning permission and the Local Authority will have that information. Again, we can help to guide you through this process.

How much does a mansard roof extension cost?
There is a considerable amount of structural work involved in adding a mansard roof extension to a property. It is for this reason that they are not cheap.

In London for example costs would range dependent on the building and quality of installation, from £40,000 on average to £70,000 and over.

However, what must be considered is the financial value that they bring to a home in adding what is in essence a whole extra floor. A property which costs approx. £1000 per sq ft, can increase roughly by £100,000 when a front and rear mansard roof extension is added.

As well as that, putting in an additional floor and going from three to four floors for example, will still work out to be considerably cheaper than a house moves. Relocating from say a £1.2million home to something further up the scale which may not even be in the same area could set you back £80,000 in Stamp Duty alone.

Advantages and disadvantages of Mansard roofs
As with any significant alteration to a home, it is important to consider upfront the advantages and disadvantages that a mansard roof extension presents.

Here at RISE Design Studio, we always advise our clients thoroughly and present them with the most appropriate and sensible solution for their property, environment, budget, and needs.

As well as being aesthetically pleasing, the primary advantage of constructing a mansard roof extension is that it increases the volume of the interior of a property thereby creating additional space and functionality.

The almost vertical bottom slope achieves this. The use of dormer windows along this slope also ensures that the space benefits from ventilation and plentiful natural light further adding to a sense of space.

Extending upwards means that homeowners retain their garden space. In addition, the space created can often be more significant and cost-effective than a rear or basement extension and offer a more discreet design.

Whilst popular amongst terraced properties, they are also suitable for most homes where the finish can match an existing building style.

The disadvantages are that you are creating an entire new roof, which is a significant and often costly undertaking and, in most cases, full planning permission is required, which can be stringent particularly in conservation areas. However, our team will help advise on local authority regulations.

In today’s congested urban environment with tightly packed housing well-designed mansard roof extensions present numerous benefits.

Not only do they solve immediate problems modern households have by creating contemporary liveable space, adding value, and ensuring families remain in their communities, but in a wider sense as evidenced by Dr Samuel Hughes proposal ‘Living Tradition’, adding to and adapting these historic properties can improve housing supply and regenerate neighbourhoods and local areas.

Furthermore, in environmental terms, they do not encroach on green spaces, have a lower carbon footprint as a new building is not being constructed and if done correctly have little impact on the skyline.

Why employ an architect to design your mansard roof extension?
There are many specialist builders who work on loft conversions and mansard roof extensions, an architect however brings with them an independent design approach to help you achieve your specific and bespoke brief, as opposed to a firm’s in-house designer who may have a more generalistic ‘cookie cutter’ approach based around reducing costings.

They see the bigger picture
Rather than a generic one-size fits all design based around saving money and time, a reputable and experienced architect will work collaboratively with you to understand your vision. They will look at your property holistically to create a well-thought-out design that meets your needs, budget, and your overall aesthetic.

Working alongside you they will give your home much-needed bespoke space, maximising the potential of your property and adding value to it whilst enhancing your lifestyle.

They can also present different spatial options that you may have not considered, suggest new technologies in terms of energy efficient heating and lighting, allowing you to reach your desired outcome and get the most from the space in ways you may not have considered.

They are up to date on planning and legislation
Architects are well-versed in current planning and legislation, and usually have established relationships with local authorities, conservation departments, and planning.

Planning applications, and permissions can seem daunting, and an experienced architect can help to navigate these and any challenges, with professional guidance and advice, ensuring a smoother process which is timely and a lot less stressful.

• They use innovative technology to bring your vision to life
Architects such as ourselves at RISE Design Studio use the latest in technology such as Virtual Reality (VR) to help you to experience and visualise your design in superb detail before construction even begins.

Not only does this ensure that you get the design you want but it helps to avoid any issues with contractors and specialists as the build progresses because every little detail has been taken into account in advance.

• They can act as a contract administrator
If you employ a specialist company to carry out your mansard roof extension there is no-one overseeing the work apart from the company themselves, they are carrying out the work and project managing it.
An architect can act independently with your interests at heart to oversee the work and ensure the quality is as expected in both build and finish, and nothing is rushed through.

At RISE Design Studio we have considerable experience in mansard roof extensions and roof terraces. For more information and to discuss your project contact us at mail@risedesignstudio.co.uk or give us a call on 020 3290 1003.

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

RIBA Plan of Work 2020

RISE-Design-Studio-Burrows-Road-Glazed-Envelope Architects like most professions welcome industry led guidelines and approaches to inform and improve their work both for their clients, collaborators, and their own progression. The RIBA Plan of Work 2020 is a guidance document set out by the Royal Institute of British Architects (RIBA) and is seen as the definitive design and process management tool for the UK construction industry. First established in 1963 to provide a framework for architects to use on client projects to bring greater clarity to each stage of the process, it has evolved over the years to become an industry wide tool. To reflect the changing approaches to building design, construction and use, and the associated advances in digital technology, increased ethics awareness, and the prioritisation of sustainable outcomes in line with the RIBA 2030 Climate Challenge, it received its biggest overhaul in 2020. In this article we examine the eight stages of the RIBA Plan of Work 2020. We look at how this formal roadmap, whilst not a contractual document provides vital guidance and helps to deliver successful outcomes for stakeholders by informing the briefing, design, construction, handover, and use of a building. Each of the eight key stages has an expected outcome; core tasks; core statutory processes in relation to planning and building processes; and crucial information exchanges, all of which impact the success of the next stage. RIBA-plan-of-work-2020-RISE-Design-Studio Stage Zero – Strategic Definition ‘What do you want to achieve from your building project, and what are your best options?’ This stage is not about design or practical details, but rather a chance for us to get to know the client, developing their requirements and helping shape the business case to achieve them. At this stage all those involved in the client team, alongside ourselves and any other professional advisors must consider that the proposed building project is the appropriate means to meet the client’s stated objectives, and then determine the best way forward. For example, perhaps a new building is not the answer, and the solution could be refurbishment or an extension. To come to a decision, information is gathered for each option. This involves examining previous similar projects, the current building if applicable, analysis of project risk (where appropriate site appraisals and surveys carried out), and consideration of project budgets. We will look at the size, location, scope, and special considerations around the clients’ needs to further refine the vision. From this exercise a recommendation is made on the best option, and a business case is completed. RISE-Design-Studio-Cecilia-Road Stage One – Preparation and Briefing ‘Developing the initial project brief and setting out the timescales – the official start of the project’ Once it has been determined that the chosen project and site is the best way forward, stage one, is the process of preparing a comprehensive project brief and choosing the collaborative project team, allocating specific roles and responsibilities. The project team will include:

Design team – headed up by Lead Designer and overseeing the design programme – Client team – headed up by Project Manager and overseeing the project programme – Construction team – headed up by Project Director and overseeing the construction programme

Feasibility studies and site surveys may be required at this stage to test the brief against the chosen site and budget i.e. are there any access issues? Is it a sloping site? What is the spatial overview and relationships with neighbouring buildings? This is often the time for us to discuss options regarding the site with the local planning authority and make sure there are no constraints. We like to establish clear and positive communication with these departments from the outset. Discussions around building regulations and other legal requirements should happen at this stage including whether the site is within a listed buildings or conservation area It is at this point that objectives are finalised and recorded under:

– Project Outcomes – Sustainability Outcomes – Quality Aspirations – Spatial Requirements

Working with the client, we will at the end of this stage, produce a timescale for the project as well as a project execution plan setting out delivery. RISE-Design-Studio-Casa-Plywood Stage Two – Concept Design ‘The design stages begin and the architectural concept is defined ‘ Stage two begins the core design process which culminates at stage four. We work closely at this stage with the client to produce visualisations, 3D models, and drawings of the architectural concept, ensuring it meets their needs and is aligned to the project brief and cost plan. As well as a visual representation of the building with sections and elevations and how it sits within the surrounding environment, these will often include:

– Interior and exterior renders – Landscaping – Specific requests – Strategic engineering requirements

There is as the RIBA states ‘no right or wrong approach’ at this point, it is our initial design response to the brief and will involve regular meetings, discussions and reviews with the client and specialist stakeholders including planners and those across structural and civil engineering, to shape and define it. The robust architectural concept along with the project brief and cost plan are signed off at the end of this stage. RISE-Design-Studio-Douglas-House Stage Three – Spatial Co-ordination ‘The co-ordinated design takes form.’ Formerly the developed design stage, here our team draw up the client approved design in CAD or ever increasingly with BIM, and develop and test it alongside detailed structural design, outline specifications, building services and cost analysis to ensure its viability. Our design will incorporate the practical elements relating to:

– Window, door, stairway, and fire exit locations – Fixtures, fittings – Proposed materials – Load bearing mechanical information – Mechanical, plumbing, and electrical considerations – Tech and security – Green, eco and solar

During this stage, or certainly at the end the design is finalised into a single model, not prone to change, and planning applications are ready for submission incorporating all our detailed drawings and reports. RIBA Plan of Work RISE Design Studio Stage Four – Technical Design ‘Final design stage before construction begins’ We make further refinements of the existing design at this stage, incorporating where relevant detail from specialist sub-contractors such as lighting specialists, kitchen designers or glazing companies. From this our Lead Architect prepares comprehensive drawings, specifications, and documents for tender. The level of detail will depend on the size and scope of the project but by the end of this stage all elements will be prescriptive rather than descriptive for the project to be manufactured and built, i.e., they set out detailed descriptions around the following:

– Requirements relating to regulations and standards – The specific types of products and materials required – The methods of delivery and installation – The building systems in place i.e., flooring, partitions, mechanical and structural

At the end of this stage all information required to construct the project is completed and we send out the tender to 3-4 contractors we have worked with before. Of course, should the client want to add to the list we will do so. RISE-Design-Studio-Doulgas-House2 (1) Stage Five – Manufacturing and Construction ‘All systems go…construction begins’ The design process is now complete and the appointed contractor takes possession of the site to carry out works as per the schedule of works and building contract. This includes manufacturing off-site and construction on-site. Stage four and stage five can overlap or run concurrently dependent on the size and scope of the project, or when the contractor was appointed. The client can choose to appoint us as the contract administrator at this point should they wish. In this role we act as the middle ground between the client and the contractor to ensure that all works are being done in accordance with finalised drawings and specifications. This can entail:

– Chairing construction progress meetings – Preparing and issuing construction progress reports – Co-ordinating site inspections – Dealing with site queries – Agree reporting procedures for defects – Issuing project documentation to the client – Issuing certificates of completion

If appointed, we like to meet weekly with the client and the relevant parties to ensure that everything is running smoothly. The appointment of Building control by the client should take place, to oversee the project and ensure that all is in order in relation to the necessary construction standards. Health and Safety inspectors will review and observe the site at this stage, so it is worth considering an independent consultant to ensure that all the correct procedures are followed. RISE-Design-Studio-The-Bunker Stage Six – Handover ‘The completed building is finished and handed over’ After practical completion, the building is ready for hand over to the client, and the building contract concludes. Feedback and building aftercare exercises take place during this stage to act as future learnings for ourselves, the client, contractor, and consultants, and to address any issues relating to the integrity of the building. These involve light touch post occupancy evaluation and snagging processes, whereby the client compiles a list of defects or incomplete works, overseen by us as the contracts administrator and presented to the contractor to rectify. They then have an agreed Defect Liability Period, usually six to twelve months to address these, after which if all has been made good, building control will sign off the construction and we will sign off the project as a whole. We then issue a final certificate, and this stage is complete. RISE-Design-Studio-Burrows-Road-Glazed-Envelope2 Stage Seven – Use ‘The vision for the building is realised and it is now in use’ This stage starts concurrently with stage six. The building is now occupied and in use. On most projects, our design team will have no duties to fulfil here. However, the incorporation of this stage into the RIBA Plan of Work 2020 gives the client the opportunity to get in touch with us if they require general advice relating to maintenance, energy consumption or management of the facilities. We welcome this communication as we love to hear how the client is finding their new building, and it also allows for effective aftercare, valuable feedback, and building monitoring especially around energy consumption, and is therefore key to the sustainability strategy. The addition of this feedback stage has made the Plan of Work cyclical as it unites the entire process into one, allowing for proper use of the building and then when demands change, and the building reaches an end of life where refurbishment or a new building may be needed, stage zero starts again. Embarking on a design and build project can often be a complex one for all involved, for a client it can be daunting. The RIBA Plan of Work 2020 offers all stakeholders a clear approach to map out the journey collaboratively from vision, through to design, construction and eventual use. At RISE Design Studios, we find that this straightforward process with realistic and measurable targets, the ability to review progress and a provision for valuable learnings allows for enhanced clarity, greater realisation of vision, and successful outcomes no matter the diversity of projects. For more information on the RIBA Plan of Work 2020 visit RIBA Plan of Work (architecture.com) 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.

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