Architects for Extensions & Planning Applications  in Weybridge

Planning permission, architectural design and project management  delivered end-to-end by a multi-award-winning local team.

All In One Architectural Solution In Weybridge

Planning applications handled for Elmbridge — council decisions arrive in 8 weeks standard.
Green Belt and protected land affect extensions — full planning is often required.
Full design, planning, and building regulations delivered together under one fixed fee.
Loft conversions available — Velux, dormer, and hip-to-gable options all designed in-house.
In-house structural engineer included — no separate specialist needed for your calculations.
A 98% planning approval rate achieved across 30+ completed Weybridge projects locally.

Extension Architecture handles planning applications, house extensions, and loft conversions across Weybridge and the wider Elmbridge area, including KT13 and Oatlands. Many streets keep Permitted Development rights, but Green Belt land often needs planning. Our in-house structural engineer and RIBA-chartered team manage every stage, from survey to completion. Council decisions take 8 weeks. Get your free quote today.

We only deliver excellence

14⁺

Projects completed in Weybridge

2220 ⁺

Our total projects completed in London & Surrey

Locations in Weybridge

Weybridge • Esher • Cobham • Walton-on-Thames • East Molesey • West Molesey • Hersham • Claygate • Oxshott

Postcodes Served

KT13

Our Expertise

Planning Application Drawings
Council-ready drawings, fast

3D Visualisations
See it before building

Retrospective Planning
Fix unpermitted works

Building Regulation Drawings
Safe, compliant drawings

Commercial Development Consultancy
Change of use experts

Interior Design
Finishes inside out

Spatial Planning & Layout
Smarter room layouts

Feasibility Consultancy
Know what’s possible

Recent Architects In Weybridge Extension & Loft Conversion Projects

The Complete Package From Our Weybridge Planning Consultants

Weybridge is defined by privacy, scale and a strong sense of residential prestige. Large detached homes sit within generous plots, often behind gated entrances and mature landscaping. This setting allows architecture to be expressed with confidence, yet it also demands restraint and careful proportion.

The presence of the River Wey and established private estates contributes to a character that values permanence and quality. Homes here are often designed for long term family occupation, with emphasis on spacious living areas, leisure facilities and strong garden integration.

Architectural success in Weybridge lies in balance. Scale must feel composed, detailing must feel intentional and materials must reinforce durability. The most accomplished designs achieve authority without excess, sitting comfortably within their landscaped surroundings.

Large detached homes dominate KT13 — ideal for rear and loft projects.
Green Belt and protected land restrict development — full planning is usually required.
Strong local demand means well-designed extensions consistently add lasting property value.
Elmbridge Council works to a clear 8-week householder planning decision timeline.

Interior fit-out, Weybridge

What Our Clients Say About
Extension Architecture

Interior fit-out, Weybridge

Our Architectural Services In Weybridge

Planning in Weybridge requires careful assessment of massing, overlooking and impact on neighbouring properties. Although plots are often substantial, proposals must demonstrate sensitivity to established building lines and mature tree coverage.

Applications benefit from early strategic analysis, particularly when introducing large extensions or significant internal restructuring. We prepare comprehensive planning documentation and coordinate supporting consultants to ensure a robust submission.

Private estates may also carry additional covenants or design expectations that influence architectural language. Our experience allows us to navigate these considerations confidently, aligning ambition with compliance.

By embedding planning strategy into the design process from the outset, we secure outcomes that protect both architectural vision and approval certainty.

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Explore before & after visuals of our extension builder projects

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Before

After

Why Choose Extension Architecture?

Our experienced team of Weybridge architects will take the lead and create a thoughtful design that maximizes the available space and is tailored to your tastes. We will guide you through the intricacies of the planning process and discuss every aspect of the project in detail. Our architects will carefully survey your property to ensure no detail is overlooked. We will be with you throughout the process, providing clearand comprehensive instructions while walking you through the planning, application and construction process.

One-Stop Solution

Our firm provides a comprehensive range of services under one roof, from planning and architectural design to intricate interior and immersive design, and expertly manages the complexities of the construction process. We have delivered projects of various scales and budgets, from small home extensions to large new builds, for a diverse clientele.

In-house Structural Engineer

Our in-house structural engineer—an advantage that only 1 in 20 firms can offer. This is crucial, as significant time is often lost consulting multiple specialists, which can lead to additional costs. With a structural engineer on our team, we ensure a fully collaborative and seamless design-build process, minimizing contingencies and preventing design inaccuracies.

Interior Design + Architecture

Our team includes interior designers who work closely with the clients, especially the ‘ladies’ of the house to curate the dream spaces tailored to their requirements. These processes include fun yet crucial processes like selecting wall finishes, color schemes, soft furnishings, flooring. Having architects and interior designers under one roof allows for less contingencies.

Turn-Key Approach

We provide support throughout the entire building process, embracing a ‘turnkey approach’ to ensure a smooth and efficient project from start to finish. Additionally, we assist in reducing build costs by aiding in the procurement of all internal fit-outs, including sanitaryware, kitchens, and more. It’s a zero hassle solution for clients.

Start Planning an Extension Home today

If you are planning a house extension in London, our architects can guide you through the entire process from concept design to construction.

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Years of Experience

17

Any Questions?

Didn’t find your answer? Feel free to reach out

In most cases, yes — but it depends on exactly where your property sits. If you’re on Green Belt or protected land, which covers a fair chunk of KT13, you’ll almost always need full planning permission from Elmbridge Borough Council, even for a fairly small extension. If you’re not on protected land, you might be able to build under Permitted Development rights without a full application at all. Honestly, the only way to know for sure is to check your specific address, which we do for free before any design work starts.

It really comes down to your plot. Weybridge has a lot of large detached homes on generous grounds, and those tend to suit double-storey or wraparound extensions really well — you’ve got the space to make a bold move. Smaller or more tightly-positioned homes usually do better with a single-storey rear extension or a loft conversion instead. We’ll walk your property with you and tell you honestly what makes sense for your budget, not just what sounds impressive.

Yes, you can — Green Belt doesn’t mean no extension, it just means a smaller one. The general rule is a proportionate increase over the original floor area, and you’ll need full planning permission rather than relying on Permitted Development. It’s a common situation around the River Wey and estate areas of Weybridge, so we deal with it regularly. We’ll look at your plot and tell you what a realistic scheme looks like before you commit to any design fees.

Elmbridge Borough Council usually aims for 8 weeks on a standard householder application, once it’s been validated. If yours falls in a conservation area or is a bit more complicated, it can stretch to around 13 weeks. Once you get the green light, that permission is good for 3 years, so you’re not under pressure to start building immediately. We keep on top of every application and jump on any council queries straight away so nothing sits idle.

It genuinely depends on the size and complexity of what you’re building — a single-storey rear extension costs a lot less to design than a double-storey or wraparound scheme on a big detached KT13 property. We work on a fixed fee that’s agreed after a free feasibility check, and that fee covers planning, architectural design and building regs together, so you’re not hit with a separate structural engineer bill down the line. Easiest way to get a real number is a free, no-obligation quote based on your actual property.

We’re RIBA-chartered and ARB-registered, we’ve been doing this for 17 years, and we keep a structural engineer in-house rather than outsourcing it. We’ve completed 30+ projects in Weybridge on top of over 2,220 across London and Surrey, and our planning approval rate sits at 98%. If you want to know whether your idea is realistic before spending a penny, we’ll do a free feasibility check covering planning risk, constraints and a proper timeline first.

Architects for Extensions & Planning Applications  in Weybridge