PAYTE
Extension Architect Chiswick
Principal Designer & Higher Risk Building Expert
Our Chiswick 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 Chiswick
Our firm specialises in house architecture in Chiswick, 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 Chiswick. 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 Chiswick 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 Chiswick 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 Chiswick Extensions Crafted with Exceptional Architecture
Our Chiswick 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 Chiswick 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 Chiswick 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 Chiswick. 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 Chiswick Home Extensions from Concept to Completion
Our team of architects, designers, and builders in Chiswick 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 Chiswick 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.
CHISWICK — EXTENDING THE DOUBLE-FRONT: WINGS, SYMMETRY AND THE CENTRE LINE (DESIGN)
A colleague of ours has a habit that sums up this whole subject.
First visit to any double-fronted Edwardian — and Chiswick is full of them, the Glebe Estate villas, those wide Grove Park plots — she stops at the front gate and just stands there for a minute. Not admiring. Measuring. Door dead centre. Bays matching left and right. A centre line running through the house so confidently you could hang the entire street off it.
Then everyone walks round the back, and more often than not, there it is: some previous decade’s extension, sitting off to one side, picking a fight with that line. Losing, too.
The house always wins these arguments. It just makes the owners pay for the privilege.
Terraces never have this problem — we’ve extended plenty and the question simply doesn’t come up. A terrace is asymmetric from birth; everything happens off the back corridor and nobody minds. But a double-front has a spine, and what we’ve observed over the years is blunt: every addition either honours that spine or quarrels with it. Neutral isn’t available. We’ve looked for it. The house won’t sell it.
So how do symmetrical houses grow? In our files, three ways, each with its own personality.
There’s the rear pavilion on axis — the natural one. A central rear extension lined up with the front door, so the organising line runs unbroken from gate to garden.
Plans love this; the hall extends straight into the new room instead of dog-legging, and the whole composition stays calm.
There’s the matched pair — wings both sides, mirrored, the type doing what it always could at country-house scale.
We’ve seen it done magnificently perhaps twice, because it needs money and it needs plot width, and the Hounslow streets ration both.
And there’s the honest asymmetric — one wing, visibly subordinate, set back and set down and quiet, leaving the original symmetry legible while the new work reads as a footnote.
All three can sing. What we’ve watched fail, repeatedly, is the fourth option nobody chooses on purpose: the half-committed addition, neither balanced nor deferential. Symmetry photographs its critics, and these houses face the street.
Which is worth dwelling on, actually — side extensions here are street-facing in a way terrace side-returns never are. Chiswick’s conservation designations notice. So do the neighbours, forever.
Inside, though, is where the type pays everyone back. That central-hall plan means a new rear room connects to both halves of the house at once — the Victorian Society’s era drew these plans and understood the luxury of arriving in the middle — and the wide rear elevation lets daylight design breathe without the compromises narrow houses force.
The structure itself is routine: openings in the original rear wall, Approved Document A, an engineer’s numbers, the 45-degree conventions refereeing the boundaries same as anywhere.
Two things from our own jobs, observations only. The centre line goes onto the drawings before anything else does — a free discipline that ends up governing every choice after it. And that photograph from the front gate, taken on day one, has settled more mid-project wobbles than any meeting: everybody remembering, in one image, what the house looked like when it was winning.
The double-fronts that came through happiest, in our experience, decided their relationship to the axis early — honour, mirror, or defer — and never revisited it.
These houses forgive nearly everything. Indecision about their own spine is the one thing we’ve never seen them pardon.
Chiswick Home Extension Planning, Design, and Construction
Feasibility Studies for Home Extensions
Our Chiswick 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.
CHISWICK — THE CLERESTORY EXTENSION: HIGH GLASS THAT DODGES OVERLOOKING (BRE; DESIGN)
Nine metres. That’s roughly the distance, in a lot of Chiswick back gardens, between your dream glass wall and the neighbour’s kitchen window. We’ve measured it often enough. And nine metres is the whole problem with the dream — because the full-height glazing everyone sketches on the first napkin points, inevitably, at people.
Rear gardens here sit at sociable distances. What we’ve watched that glass wall buy, more than once, is daylight in exchange for a lifetime of accidental eye contact, with the planning process refereeing the privacy row before the family has even moved in.
Our way out of this, arrived at over many of these projects, isn’t less glass.
It’s higher glass.
Put the glazing above eye level — a horizontal clerestory band, or glazed gable tops tucked under the roofline — and the arithmetic flips.
The neighbours see nothing but your ceiling. You see nothing but sky. And sky, it turns out, is the jackpot: the brightest part of any scene, so a modest high band throws in daylight wildly out of proportion to its size.
Throws it deep, too. Light entering high travels further across a plan than the same glass down at floor level — which is exactly what the dark middle of a rear extension is starving for. None of this is our discovery; the BRE’s daylight science wrote it down long ago. We’ve just watched it come true, room after room after room.
Here’s the practical consequence, and it’s the one we find ourselves repeating: clerestory extensions get designed on the section, not the elevation. The section is where the cill height climbs above the sightlines from next door’s garden.
Where the glass gets angled or shaded against July. Where the ceiling goes pale, because a pale ceiling is doing half the lighting. And when the section is right, something quietly wonderful happens to the paperwork — privacy stops being an argument at all.
Glazing that starts at 1.8 metres has no overlooking case to answer. We’ve watched that one fact drain the tension out of consultations that were warming up nicely.
A gift to the application. A bigger one to the two households who’ll live either side of it for decades.
The building of it wants early cooperation between structure and services, nothing more.
A continuous high band asks the roof to fly over it — ring beam or goalpost frame, an engineer’s job, so the glass line stays clean — and the units join Approved Document L’s sums like any other glazing, real U-values, the GGF covering products.
Our favourite refinement, learned on the job: opening vents up in the band, motorised, rain-sensing.
Hot air collects high and leaves high. The lamp becomes the lung. The dull question — and it’s the one we’ve learned never to skip — is cleaning access, because unreachable glass turns into unnoticed glass, for all the wrong reasons.
On the Edwardian stock the Victorian Society’s era scattered across Chiswick, one more thing keeps striking us: the high band leaves the old rear wall’s lower storey completely legible.
The house keeps its face. The new light arrives over its shoulder.
Light without spectacle. Privacy without curtains. Neighbours without incident. The clerestory is the introvert’s glass wall — and at nine metres, we’ve come to think the introvert has it right.
FAQ
Services
We offer a comprehensive suite of architectural services for Chiswick, our skilled architects each specialise in distinct disciplines. This diversity allows us to tailor our approach to meet the various facets of architectural design.