PAYTE
Extension Architect Fulham
Principal Designer & Higher Risk Building Expert
Our Fulham architects have extensive experience in extension architecture, specialising in loft conversions, basement extensions, bespoke extensions, rear extensions, two-storey and single-storey extensions, contemporary designs, double-storey extensions, Mansard roof extensions, and ground-floor extensions.
house extension architect Fulham
Our firm specialises in house architecture in Fulham, most commonly Victorian houses. We take pride in helping our clients enhance their property value while optimising space. We create bespoke designs and contemporary design extensions with interior reconfigurations to maximise natural light and extra space. Our creative design team elevates the planning process to a new level.
As a leading architectural practice, we specialise in helping homeowners navigate the planning process, building regulations, planning permissions, party walls, and building control. Our experienced team handles all regulatory challenges in extension projects, making your home’s transformation seamless and stress-free.
We carry out architectural work for rear, wraparound, side return, or infill extensions to best suit your space and increase its value. We begin with our design process, initial drawings, structural calculations, and 3D visualisations to assist clients in picturing the transformation, alongside a precise scope of work for the building contractor. Let us help expand your floor space and elevate your property’s worth. Our expertise ensures that each project is expertly designed to meet your specific needs.
Being a quality West London extension architect practice, we deliver bespoke residential design solutions tailored to the character, planning context, and long-term value of each home.
apartment Extension architects
We specialise in providing comprehensive design and architectural services for apartment extensions in Fulham. Our offerings include detailed planning advice, design layout changes, custom joinery, and regulatory drawing preparations. Whether you are looking to completely revamp your apartment’s layout or to implement specific modifications, we manage every aspect of the project.
Our services encompass the entire process, from securing planning permission and building approvals to obtaining landlord consents and the necessary license to alter documentation. We also handle all planning applications ourselves.
Additionally, we offer project management as part of our complete service package. Our architectural service ensures a seamless transformation of your space, enhancing both functionality and aesthetics to create modern, stylish living environments.
We have a team of extension architects London property owners can trust for considered design, planning, and project coordination for apartment extensions throughout the city.
extension conversion package
3 Meter rear extensions package
£60,000.00 INC. VAT
What’s included:
6 Meter rear extensions package
£104,700.00 INC. VAT
What’s included:
At Payte Architects London, our rear extension service is about making it simple to gain more space without losing control of cost or complexity. With over 10 years’ experience on Fulham homes, we offer two fixed‑price packages at three and six metres (including VAT), so you choose how far to extend and we handle design, approvals and on‑site work up to first fix.
You’ll work with a friendly architectural team that actually picks up the phone. All architectural work is carried out by architects registered with the Architects Registration Board (ARB) or chartered with the Royal Institute of British Architects (RIBA), and we coordinate closely with our dedicated extension build team so design and construction stay joined‑up from day one.
We take care of the planning route – from Lawful Development Certificates for three‑metre projects to prior‑approval applications for six‑metre schemes – using our experience with boroughs such as Haringey Council’s planning team, Lambeth Council’s planning service and Brent Council planning to shape proposals around what local councils typically support.
Throughout, we keep communication simple and regular so you always know where your project is and what’s coming next, aiming for a bright, well‑built Fulham extension that quickly becomes the main room everyone uses.
Exclusions
This package is not applicable to property where you need planning permission or listed building consent, or if there is an article 4 on your property.
In addition to the above, the following exclusion applies:
- Party wall award
- Building control fees
- Any specialist consultants
- Asbestos removal fees
- Finishing (sanitary ware, tiling, floor finishing, wall finishing, joinery).
- Party wall award
- Building control fees
- Any specialist consultants
- Asbestos removal fees
- Finishing (sanitary ware, tiling, floor finishing, wall finishing, joinery).
ARRANGE A FREE CONSULTATION
Arrange a free consultation with our architects practice today, we offer clients a 30 minute consultation.
FREE NO OBLIGATION CONSULTATION
VIRTUAL CONSULTATION AVAILABLE
ON SITE CONSULTATION AVAILABLE
Innovative Fulham Extensions Crafted with Exceptional Architecture
Our Fulham architects create smart, sustainable extensions that suit your space perfectly.
Wraparound
We specialise in wrap-around extensions. This is a popular way to expand and transform properties. This extension combines a rear and side addition. It creates an L-shape that expands ground-floor space. This is ideal for open-plan kitchens, living spaces, or adaptable rooms that fit modern lifestyles. We handle everything from design and planning permission to construction.
Single Storey
A single-storey extension can really boost space in your Fulham property. It can be added to the back or side of the property. This addition offers more space for a modern kitchen, a living area, or a home office. This extension improves the flow inside and makes the property more practical. Our architectural team makes it easy for you to get great results that suit your property.
Multi Storey
A multi-storey extension in Fulham can provide a lot of space. You can use it for extra bedrooms, bigger living areas, or more bathrooms. Building up on your property lets you make the most of it without losing any garden space. We take care of everything. This includes planning, permissions, and construction. We ensure your extension fits well with the current architecture.
Side Return
A side return extension utilises the unused space beside your home. You often find this add on in Victorian and Edwardian buildings in Fulham. Clients can extend into this narrow area to make a wider, open-plan kitchen. This change will let in more natural light. Our architects are experts in side return extensions. These designs boost functionality and add to the property’s value.
Rear Extension
A rear extension expands the back of your property. This gives you room for an open-plan kitchen, a larger dining area, or a more spacious living room. This is ideal for clients looking to improve their ground floor. These extensions boost natural light and link indoor and outdoor spaces smoothly. We create rear extensions that match your home’s style. They also boost efficiency and value.
Seamless Fulham Home Extensions from Concept to Completion
Our team of architects, designers, and builders in Fulham creates stylish and practical home extensions. We handle each stage, from the first meeting to the final build, with care and precision.
Free Initial Consultation
In your 30-minute free consultation, we’ll discuss your project vision, design choices, size, and budget for the extension. This process ensures that we can align your ideas with the practical aspects of the project with accuracy.
Full Architecture Service
We offer bespoke services for home extensions. This features on-site assessments, detailed drawings, 3D visualisations, planning applications, and tender management. We customise each service to meet your unique needs.
Planning & Permissions
Our Fulham architects focus on extension planning. Our professional practice handles it all, from the initial idea to final approval. We carefully find ways to handle local rules, stay within zoning laws, and meet building codes.
Complete Building Works
We’re a full-service architecture firm that specialises in extensions. We have in-house architects, interior designers, and building contractors. Our team ensure easy collaboration, guiding your project till its delivery.
Local Topic
General information only. Planning and licensing rules change and depend on the individual property. This article is not legal or professional advice.
FULHAM — ANATOMY OF THE SIDE-RETURN EXTENSION: VALLEY GUTTER, STEEL AND PARTY PARAPET (DOC A)
Every Fulham terrace owner knows the side return by sight: that strip of dead yard beside the back wing, two metres wide, home to a drain, a bike and disappointment.
Filling it in is the borough’s signature project. What almost nobody knows is what the finished extension is actually made of — and the three components that decide whether it works are all invisible from the kitchen island.
The steel nobody sees
Take away the side wall of the back addition and something must carry the two storeys above. That something is steel — typically a substantial beam, or two working as a goalpost.
Designed under Approved Document A by an engineer who has also worked out the padstones spreading the load and the temporary works holding the house up while the wall comes out mid-surgery.
This is the part to respect. The rest of the extension is joinery and weathering; this is the moment a Victorian building gets a new spine.
Fulham’s ground — river gravels over London Clay — joins the conversation too, because the new foundations along the boundary go deeper than the Victorian footings beside them, and the sequence of digging matters.
The gutter that runs uphill in leaves
The classic side-return roof is a lean-to of glass or warm roof pitching toward the house — which creates a valley gutter where new roof meets the back wing’s old wall.
That modest channel is the hardest-working drainage in the whole project. It collects two roofs’ worth of water, it’s awkward to reach, and every autumn it fills with plane-tree leaves.
So it gets designed generously or it becomes an annual ritual of ladders. Wide enough to walk a hand along, lined properly, with an overflow route so a blockage floods the garden rather than the kitchen ceiling.
The NFRC, the roofing trade body, covers the standards; access for clearing is the design decision people forget.
The wall you share
Third component: the party parapet. The side return’s new wall stands on or against the boundary with next door, which brings the party wall procedures into play and — the technical bit — asks the junction at the top to keep two households’ weather and fire separate.
Flashings stepped correctly into the neighbour’s side, cavity trays over, brickwork matched so the bond and mortar don’t announce the join to the whole street from the garden end.
Building control signs the structure and the drainage; the neighbours judge the parapet forever.
None of this argues against the project — the side return remains the best plan-per-pound move a Fulham terrace can make.
It argues for respecting the three unglamorous components that make it permanent. The island gets the photographs. The steel, the gutter and the parapet earn them.
Fulham Home Extension Planning, Design, and Construction
Feasibility Studies for Home Extensions
Our Fulham property extension architects carry out comprehensive feasibility studies. They look at structural integrity, space potential, and costs. This ensures that property expansions are smart and efficient.
Planning Permission for Extensions
Our team of architects collaborates with local councils. We navigate planning policies, building codes, and zoning laws to ensure smooth compliance. Our expertise simplifies the process, providing a stress-free experience.
Project Management and Contractor Coordination
We monitor construction progress, project timelines, and project quality. This way, we ensure everything operates without issues and according to schedule. We focus on details to ensure everything runs smoothly from start to finish.
Sustainable Extension Materials & Energy Efficiency
Our eco-friendly extension designs and insulation solutions improve property energy efficiency, sustainability, and comfort. Our approach reduces environmental impact and improves thermal performance.
Structural Engineering and Load-Bearing Analysis
We check that extensions meet safety, stability, and regulatory standards. We do this with structural assessments and compliance checks. Our team makes sure that a property extension blends in well, is safe, strong, and built to endure.
Interior To Exterior Extension Flow and Aesthetic Integration
Our architects mix new extensions with the current style. This creates a smooth transition between the old and the new. Our architects respect the original structure while enhancing functionality, aesthetics, and flow.
why work with us?
Fast Turn Around
We deliver swift completion of extensions by leveraging our efficient planning, expert team, and streamlined project management, ensuring a smooth and expedient process.
Fixed Pricing
We provide transparent, fixed pricing for architectural and building services for extensions, offering clients a clear understanding of costs. This approach allows for confident budgeting.
We Maximise Value
We guide clients to achieve the best outcome for extensions, balancing the investment benefits with a comfortable living space. Our expert advice ensures maximum financial value.
Turnkey Operation
We offer a full-service for home extensions, guiding clients from the initial consultation to project sign-off. You will have a dedicated account manager overseeing every detail.
recent EXTENSION projects
Local Topic
General information only. Planning and licensing rules change and depend on the individual property. This article is not legal or professional advice.
FULHAM — EXTENDING TO THE BOUNDARY: FLASHINGS, GUTTERS AND THE NEIGHBOURLY MILLIMETRES (DESIGN PRACTICE)
There’s a moment on most Fulham extension jobs when the tape measure becomes a diplomatic instrument.
The wall is going on the boundary — not near it, on it — and suddenly millimetres that would matter nowhere else matter enormously. Whose bricks are these? Where does this gutter discharge? Can the roofer even reach that flashing without standing in next door’s flowerbed?
Building tight to the line is normal in this borough; the terraces were built that way. Doing it well is a craft with three parts: law, detail and manners.
The line and the law
The legal frame is the party wall regime — the government’s explanatory booklet is the sensible starting read — which covers notices for building at the boundary, works to shared structures and excavation near neighbouring foundations.
Where the boundary actually runs is a separate and older question; deeds are vaguer than people expect, and a RICS boundary surveyor settles in an afternoon what neighbours can dispute for years. Settle it before the setting-out, not after.
What the law can’t do is design the wall. That’s where the millimetres live.
Details that respect the line
A boundary wall has no “outside” you control — you may never again have access to point it, paint it or fix it.
So it gets built as a finished face on day one: engineering-quality pointing, no rendered afterthoughts, and every detail reachable from your own side for future maintenance. Gutters deserve special suspicion. Rainwater from your new roof must land in your drainage, not next door’s; eaves that oversail the line need agreement, not assumption.
And the NFRC’s guidance on flashings and abutments is the standard the roofer should be working to where your new roof meets whatever exists beyond the line.
Overlooking, overshadowing and the 45-degree daylight conventions belong to the planning conversation with Hammersmith & Fulham and your designer’s homework. The construction conversation is simpler and harder: everything must be buildable, and later fixable, from your side.
The neighbour dividend
Now the manners, which are not soft. A boundary build succeeds or sours on the relationship next door, and the relationship outlasts the scaffolding by decades. Access requests made early and in writing.
A contractor briefed that the neighbour’s garden is not a storage yard — the Considerate Constructors Scheme codifies exactly this behaviour, and a good builder treats it as normal. Photographs of the neighbour’s side before work starts, shared openly, so any damage claim starts from facts.
The finished side return will please you every day. The boundary wall will face next door for a century.
The wall that works is built as if they’re the client too — because in every way that matters at the line, they are.
FAQ
Services
We offer a comprehensive suite of architectural services for Fulham, our skilled architects each specialise in distinct disciplines. This diversity allows us to tailor our approach to meet the various facets of architectural design.