PAYTE
Extension Architect Hammersmith
Principal Designer & Higher Risk Building Expert
Our Hammersmith 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 Hammersmith
Our firm specialises in house architecture in Hammersmith, 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 architecture 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 Hammersmith. 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.
As an experienced architect for extensions, we can offer clients a beautiful, well-considered custom extension design services tailored to your property’s character, planning context, and long-term value.
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 Hammersmith 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 Hammersmith 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, we offer clients a 30 minute consultation.
FREE NO OBLIGATION CONSULTATION
VIRTUAL CONSULTATION AVAILABLE
ON SITE CONSULTATION AVAILABLE
Innovative Hammersmith Extensions Crafted with Exceptional Architecture
Our Hammersmith 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 Hammersmith 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 Hammersmith 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 Hammersmith. 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 Hammersmith Home Extensions from Concept to Completion
Our team of architects, designers, and builders in Hammersmith 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 Hammersmith 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.
HAMMERSMITH — THE FULL-WIDTH REAR EXTENSION: ONE STOREY, DONE BEAUTIFULLY (DESIGN GUIDANCE)
The full-width rear is the extension Hammersmith’s terraces were waiting for.
Where the side return fills a slot, this one replaces the whole back of the ground floor — original rear wall and back addition both — with a single new room running boundary to boundary.
One space, garden-wide, and the entire ground plan reorganised around it.
It’s also the extension that punishes lazy design hardest, precisely because it’s become so common. Every street has one. Few streets have a good one.
The beam and the big room
Structurally the move is one enormous decision: the back of the house now hangs on steelwork spanning the full width.
An engineer designs it along with the padstones, the foundations and the temporary works that hold two storeys of Victorian brick in the air mid-operation.
With the structural zone wrong, the project inherits the classic failure — a fat downstand beam crossing the ceiling exactly where the space wanted to flow.
The elegant versions bury the steel in the roof depth or express it deliberately. The accidental versions apologise forever.
The room itself needs designing as a room, not a span. Boundary-to-boundary width with a glazed rear wall produces, unmanaged, a wide shallow space with a dark strip along its inner edge.
So the section works overtime: rooflights placed against the junction with the old house, ceiling heights pushed where the 45-degree daylight conventions and the neighbours allow. And the glazing budgeted against Approved Document L’s quarter-rule arithmetic rather than assumed.
What the width costs
Full width means both boundaries at once — party wall procedures on two sides, two sets of neighbours living through the same six months, and flashings, gutters and parapets doubled.
It also means the garden loses depth across its whole frontage, which is worth saying out loud: a four-metre projection off a twelve-metre garden changes the garden’s entire character, not a strip of it.
Hammersmith & Fulham’s officers see these weekly, and the schemes that move smoothly share a shape: projection kept proportionate to the plot, massing stepped or set down from the shared boundaries, and rear elevations composed rather than simply glazed.
A good builder will price the doubled boundary work honestly; a good drawing set gives them something honest to price.
At its best, the full-width rear is the most transformative single storey money can buy in this borough — the whole ground floor reborn, garden light reaching rooms that never had it.
Done as a glass box bolted to a beam, it’s a bright room behind a dark house. The difference is design, start to finish.
Hammersmith Home Extension Planning, Design, and Construction
Feasibility Studies for Home Extensions
Our Hammersmith 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.
HAMMERSMITH — PORCHES AND FRONT EXTENSIONS: ADDING TO THE FORGOTTEN ELEVATION (GPDO CLASS D)
Extension attention in Hammersmith points one way: rearward. Kitchens, gardens, glass. Meanwhile the front of the house — the elevation that greets you daily, takes the weather, swallows the buggy and the bikes and the deliveries — soldiers on unimproved.
The front deserves better, and the modest porch is one of the most useful small projects in architecture.
What a real porch does
A porch is not decoration. It’s an airlock, a storage device and a threshold ritual rolled into a few square metres.
Done properly it kills the draught that pours through a Victorian front door every time it opens; it gives coats, boots and scooters a home that isn’t the hallway floor.
It shelters the fumble for keys; and it upgrades security, because a lockable outer line with decent sightlines is worth more than gadgetry — Secured by Design’s guidance makes exactly that case.
Thermally it’s a buffer zone, and the unglamorous truth is that a small unheated porch does more for a draughty terrace’s comfort than several flashier purchases.
The rules on the front
Front additions live under tighter planning discipline than rear ones, for the obvious reason: everyone can see them.
Permitted development’s Class D — set out in the General Permitted Development Order — allows a porch without an application within famously tight limits: three square metres of ground area, three metres tall, kept back from the highway boundary.
The Planning Portal’s guidance walks through the conditions.
Outside those limits, or on the many Hammersmith streets where conservation areas and Article 4 directions apply, it’s an application to Hammersmith & Fulham. And on a composed Victorian frontage that’s no bad thing, because the design bar should be high out front.
Which is the craft of it. The good porch takes its language from the house — the arch profile, the tile palette, the proportions of the original door surround — whether it replicates them or riffs on them.
The Victorian Society’s advice on front alterations is blunt about how much street character lives in these small elements, and Hammersmith’s terraces prove the point in both directions. Streets where original porches survive read richer, and one clumsy addition interrupts a whole run.
One regulatory kindness to finish: a modest porch is often exempt from the Building Regulations entirely — the classic conditions being under 30 square metres, the original front door retained, and any glazing and electrics compliant. Though building control will confirm where your design sits.
Small project, high visibility, daily payoff. The front elevation waited a century for its turn. Three square metres, done with care, is usually all it was asking for.
FAQ
Services
We offer a comprehensive suite of architectural services for Hammersmith, our skilled architects each specialise in distinct disciplines. This diversity allows us to tailor our approach to meet the various facets of architectural design.