PAYTE
Extension Architect Kingston upon Thames
Principal Designer & Higher Risk Building Expert
Our Kingston upon Thames 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 Kingston upon Thames
Our firm specialises in house architecture in Kingston upon Thames, 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 maximize natural light and extra space. Our creative design team elevates the planning process to a new level.
As a leading architectural practice, we specialize 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 visualising 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 South 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 Kingston upon Thames. 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 Kingston upon Thames 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 Kingston upon Thames 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 Kingston upon Thames Extensions Crafted with Exceptional Architecture
Our Kingston upon Thames 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 Kingston upon Thames 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 Kingston upon Thames 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 addon in Victorian and Edwardian buildings in Kingston upon Thames. 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 Kingston upon Thames Home Extensions from Concept to Completion
Our team of architects, designers, and builders in Kingston upon Thames 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 Kingston upon Thames 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.
KINGSTON — THE CONSERVATORY-REPLACEMENT EXTENSION: REAL ROOM FOR GLASS BOX (DOC L)
Kingston’s gardens are ringed with a particular monument to optimism: the 1990s conservatory. Polycarbonate or early double glazing, uPVC frames yellowing gently, a room the household uses for roughly six weeks a year — too hot from May, too cold from October, and demoted long ago to furniture storage with a view.
The replacement extension — knocking the glass box down and building a proper insulated room in its footprint — has become one of the most requested projects in the borough, and one of the most satisfying to deliver.
Why the swap works so well
The conservatory already fought the hard fights. It established the footprint, the household’s habits and, often, the drainage and the door opening — so replacing it feels like an upgrade rather than an invasion. What changes is the fabric: insulated walls and a real roof built to Approved Document L’s current standards, glazing kept generous but specified.
High-performance units where the old box had greenhouse film, and the GGF documents what modern glass genuinely achieves. And a solid, insulated roof with rooflights delivering the top light the polycarbonate promised and never comfortably kept.
One regulatory note stated carefully: the old conservatory likely stood outside the Building Regulations under the exemptions that apply to certain thermally separated glazed additions — a subject with its own rulebook that we won’t reprise here.
The replacement, being a real habitable room opened to the house, is full-scope regulated work: structure, thermal sums, ventilation and building control sign-off, exactly as any extension. That’s not a burden.
It’s the entire point of the swap — the certificate says the new room is a room.
Getting more than a like-for-like
The design opportunity people under-use: the replacement needn’t inherit the conservatory’s apologies.
The footprint can adjust while the trades are there; the connection to the house — so often a pinched pair of patio doors into the old lean-to — can open properly, turning back-room-plus-box into one coherent space. And the energy performance flips from the house’s worst room to its best. Kingston’s planning picture for like-scale replacements is generally gentle, though the usual checks apply where designations or previous conditions exist.
The before-and-after is the most vivid in extension work: the room the family avoided becomes the room they fight over, on the same footprint, for the cost of doing it once, properly. The nineties meant well. The replacement means it all year.
Kingston upon Thames Home Extension Planning, Design, and Construction
Feasibility Studies for Home Extensions
Our Kingston upon Thames 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.
KINGSTON — HOW BIG IS TOO BIG: EXTENSION SIZE AGAINST KINGSTON’S PLOTS (POLICY)
“What’s the maximum we can build?”
We get asked this in Kingston more than anywhere else, and we always want to answer with a different question: what’s the right amount? Because those are two separate numbers, and the gap between them is where a lot of suburban extensions go wrong.
But let’s do the rules first, since that’s what everyone wants to know.
The starting point is permitted development — the General Permitted Development Order, which lets you extend without a planning application if you stay inside its envelope.
Detached houses get more rear projection than attached ones. There’s also the larger home extensions route: single-storey rears up to six metres for attached houses, eight for detached, through a prior-approval process where the council asks your neighbours first.
The Planning Portal has an interactive guide to the height, coverage and boundary conditions wrapped round all this, and it’s worth an evening.
Two traps in the small print catch people constantly. One: permitted development can’t cover more than half the land around the original house. Two: “original” means as first built — so the previous owner’s 1998 conservatory and that garage conversion are already spending your allowance. We’ve seen the discovery land mid-design more than once, which is exactly why the feasibility check comes first. Cheap to learn early. Painful to learn after the kitchen’s been drawn.
Go beyond the envelope and it’s an application, where Kingston weighs the usual things — your neighbours’ light through the 45-degree conventions, how much garden survives, and the question this borough cares about more than most: does the extended house still fit its street, or has the plot been eaten?
Which brings us to the second number. The one no rulebook sets.
Kingston’s whole appeal is space around buildings. Houses in gardens. Gaps you can see green through. Families move here for that — and then some of them build an extension that’s completely lawful and quietly spends the exact thing they paid the premium for.
We’ve stood in those gardens afterwards. A strip of grass wrapping a maximised footprint isn’t a garden; it’s a margin.
Our rough measure, offered as opinion rather than policy: once built form starts claiming much past a third of a suburban plot, you’ve crossed from extending a house in a garden to erasing the garden a house sat in.
Keep depth for a table, a tree, and some privacy, and the plot still works.
So: build what your household’s actual life needs, put it where it works hardest, and bank the rest as amenity — because it is.
When an application’s needed, that approach hands you the winning argument for free: proportion persuades officers in a way appetite never does. And the Building Regulations apply to every square metre regardless of route — building control doesn’t care whether planning did.
Maximum and optimum are different numbers. Build the second one.
FAQ
Services
Payte Architects London offers a comprehensive range of architectural services. Our skilled architects specialise in different areas. This lets us customise our approach for the many aspects of architectural design.