Architects in Wimbledon for Extensions, Loft Conversions & Planning
From planning applications to structural design — we help Wimbledon homeowners extend, convert and improve their homes.
Architectural Services in Wimbledon
Wimbledon is one of south-west London’s most desirable residential areas, known for its village atmosphere, outstanding schools, green spaces and direct transport links to central London. The housing stock is diverse — from the Victorian villas of Wimbledon Hill and the Edwardian terraces around Wimbledon Park to the 1930s suburbs of Raynes Park, the distinctive Arts and Crafts homes of Merton Park and the characterful cottages of Wimbledon Village. Homeowners across the area regularly invest in house extensions in Wimbledon, loft conversions and renovations to unlock space in properties they love.
Whether you are considering a rear extension to create a bright kitchen-diner, a kitchen extension in Wimbledon to maximise your ground-floor living space, a loft conversion to add a bedroom or home study, or a wraparound extension on a larger plot, getting professional architectural drawings early in the process is essential. With approximately 28 conservation areas across the London Borough of Merton, many Wimbledon properties face stricter planning controls that require thoughtful design.
We provide full architectural drawing packages, handle your planning permission application with Merton Council and prepare the building regulation documents your contractor needs to build. Every project starts with a detailed 3D measured survey and ends with a tailored set of drawings that reflect your property and your goals. We also provide in-house structural engineering, delivering beam calculations and structural designs so you deal with one team — your Wimbledon architects — from concept to completion.
Why Wimbledon Projects Need Careful Planning
Wimbledon falls within the London Borough of Merton, which contains over 25 conservation areas in Wimbledon — several concentrated around Wimbledon Village, Wimbledon Hill Road and the Ridgway. Large detached properties in the Village sit alongside Victorian and Edwardian terraces in the town centre, each with different planning considerations and design opportunities.
Merton Council applies its Sites and Policies DPD alongside the Core Strategy when assessing extensions, loft conversions and new-build proposals. Properties near Wimbledon Common face additional constraints under Metropolitan Open Land (MOL) protections, and those in conservation areas are subject to Article 4 Directions in Wimbledon that remove permitted development rights for front elevations, boundary treatments and roof alterations.
We prepare applications that address Merton Council’s policies on residential design, covering everything from single-storey rear extensions and side returns to substantial basement excavations. Our architects handle full planning submissions, lawful development certificates and appeals — whether your project involves a house extension in Wimbledon, a loft conversion in Wimbledon or a complete refurbishment — working directly with Merton’s planning officers throughout the process.
What We Design
Rear Extension
Open-plan kitchen-diners, garden rooms and ground-floor living spaces designed around your lifestyle.
Learn More →Loft Conversion
Dormers, hip-to-gables and roof extensions across Wimbledon — adding bedrooms, offices and bathrooms.
Learn More →House Extension
Side returns, single-storey and multi-room layouts to transform your existing footprint.
Learn More →Wraparound Extension
Rear and side combined for maximum internal space — ideal for open-plan kitchens and family rooms.
Learn More →Double Storey Extension
Two-floor extensions for growing families — maximising space from your available footprint.
Learn More →Planning Applications
Full householder applications, lawful development certificates and appeals — submitted to Merton Council on your behalf.
Learn More →Building Regulation Drawings
Detailed technical drawings for Building Control sign-off, covering structure, insulation, drainage and fire safety.
Learn More →Structural Design
Beam calculations, steelwork specifications and structural engineering — all handled in-house by our team.
Learn More →Our Featured Works
Loft Conversions and Dormer Designs in Wimbledon
A loft conversion in Wimbledon is one of the most effective ways to add space, where property values make it well worth maximising what you already have. The Victorian and Edwardian homes around Wimbledon Hill, Wimbledon Park and the streets between the town centre and Wimbledon Common are particularly well suited to rear dormer conversions, creating a full-width loft room for a master bedroom and en suite, a nursery or a dedicated workspace.
The 1930s semis and detached homes in Raynes Park, South Wimbledon and the wider Merton area are ideal for hip-to-gable conversions combined with rear dormers, unlocking maximum usable space at roof level. These conversions are among the most cost-effective ways to add a bedroom and bathroom without the disruption and expense of a ground-floor extension.
Most loft conversions in Wimbledon and the wider Merton borough fall within permitted development rights, meaning no formal planning application is required. However, properties in conservation areas — including Wimbledon Village, Wimbledon West, Wimbledon Hill, Merton Park and John Innes — may face additional restrictions. We assess your property’s planning status at the very start and handle all necessary applications so you can proceed with confidence.
Period and Character Home Extensions in Wimbledon
Victorian Villa Extensions
Rear and side extensions on the substantial Victorian properties around Wimbledon Hill and the streets between the town centre and the Common, adding contemporary living space to period homes.
Edwardian Terrace Extensions
Rear extensions on the Edwardian terraces around Wimbledon Park and South Wimbledon, creating open-plan kitchen-diners with bifold doors opening onto the garden.
Wraparound Extensions
Combining side and rear extensions on larger corner plots and detached properties across Wimbledon, Merton Park and Raynes Park to maximise the ground-floor footprint.
Hip-to-Gable Loft Conversions
Converting hipped roofs to gable ends on the 1930s semis common across Raynes Park and South Wimbledon, creating full-width loft bedrooms with proper headroom.
Arts and Crafts Home Extensions
Sensitive extensions to the distinctive Arts and Crafts properties in Merton Park, designed to complement their architectural character while adding modern living space.
Side Return Conversions
Extending into the side passage on Victorian and Edwardian terraces to widen the ground floor — especially popular around Wimbledon Park and South Wimbledon.
Planning Permission Support in Wimbledon
Planning applications for residential projects in Wimbledon are handled by Merton Council, which manages approximately 28 conservation areas across the borough. These include Wimbledon Village, Wimbledon West, Wimbledon Hill, Wimbledon Chase, Merton Park and John Innes — areas where planning controls are more rigorous and design quality is expected to be high. The council also maintains Article 4 Directions that remove certain permitted development rights in the most sensitive areas.
For extensions and loft conversions, Merton Council considers the impact on neighbouring amenity, the compatibility of the design with the existing streetscape and whether the proposal respects the character of the area. In conservation areas, front-facing and publicly visible changes receive the closest scrutiny. Rear extensions must respect the 45-degree rule for daylight, and upper-floor extensions require careful attention to overlooking and privacy.
We prepare all planning drawings, design and access statements and supporting documents for householder planning applications to Merton Council. Where your project falls within permitted development, we prepare lawful development certificates. We understand the local planning context across the Wimbledon area — from the conservation-sensitive streets of the Village to the suburban plots of Raynes Park — and design schemes that are more likely to gain approval first time. Whether you need a design and build service in Wimbledon or architectural drawings for a new build in Wimbledon, we manage the process from start to finish. We also serve homeowners across neighbouring boroughs — see our pages for architects in Richmond, architects in Kingston, architects in Wandsworth, architects in Putney and architects in Sutton.
Our Wimbledon Design and Planning Process
Your 3D Site Survey
An appointed surveyor will carry out a full measured survey of your property, noting down all your desired requirements for your proposal.
Drawings Initiated
Your project is allocated to one of our architectural designers who will design it from the ground up, taking into account all your needs.
You Review It
Your first draft is typically ready in 7 working days, and within 10 at the latest. Review the designs, send us any changes, and we’ll finalise your drawings for submission.
Submission & Decision
Your plans will be submitted strategically for swift council approval. Expect a decision in 6–8 weeks. We handle any required changes for free.
Technical Design
Once plans are approved, our Structural Engineers and Architects will manage the Structural Design and Building Regulations compliance. You can also get construction quotes from us to compare.
Construction
If you decide to build with us, we arrange a detailed consultation to finalise your requirements and ensure everything aligns perfectly with your vision.
Ready to start your project?
Get a Free ConsultationWhy Wimbledon Homeowners Choose Salstan
Wimbledon Planning Knowledge
We work extensively across Wimbledon and the wider Merton borough, understanding the 28 conservation areas, Article 4 Directions and design expectations from the Village to Raynes Park.
Structural Design In-House
No need to hire a separate structural engineer. We handle beam calculations, steelwork and load-bearing assessments internally.
Fixed-Fee Pricing
Clear pricing from the start with no hidden costs or hourly surprises. You know exactly what you are paying for.
Construction Services
From design through to build — our in-house construction team delivers your project without the need for a separate contractor.
3D Visuals Included
See your extension or loft conversion in 3D before a single brick is laid. Included in every design package.
One Point of Contact
A dedicated designer manages your Wimbledon project from start to finish, so nothing falls through the cracks.
How Much Does an Extension or Loft Conversion Cost in Wimbledon?
We believe in transparent pricing from the start. Below are our starting prices for the most common Wimbledon extension and loft conversion projects. Your final fixed-fee quote is confirmed after we understand your property, scope and council requirements.
- Full 3D measured survey
- Architectural drawings
- Unlimited revisions
- Planning submission
- Full 3D measured survey
- Architectural drawings
- Unlimited revisions
- Planning submission
- Full 3D measured survey
- Architectural drawings
- Unlimited revisions
- Planning submission
Your final price depends on property size, planning route, conservation area status and structural complexity. We discuss all of this during your free initial consultation before you commit to anything.
Areas We Cover in Wimbledon
One of London's most desirable residential areas, centred around the High Street and the edge of Wimbledon Common. The conservation area contains large detached and semi-detached period properties with generous gardens. Planning applications here require sensitive design that preserves the village character while accommodating modern living.
A vibrant area around the station with a mix of Victorian terraces, Edwardian semis and some post-war housing. Properties here offer excellent potential for rear extensions, side returns and loft conversions. The town centre's excellent transport links make well-designed extensions a strong investment.
More affordable than the Village, South Wimbledon features Victorian terraces and inter-war housing well suited to rear extensions and loft conversions. Most properties retain permitted development rights, allowing many projects to proceed without a full planning application from Merton Council.
Residential streets surrounding Wimbledon Park feature Edwardian and inter-war semis, many with good-sized rear gardens ideal for single and double-storey extensions. Properties overlooking the park may face additional design considerations to protect visual amenity from public spaces.
A popular family area with 1930s semis and some larger detached properties along the main roads. Raynes Park is well suited to hip-to-gable loft conversions, rear extensions and garage conversions. Most properties outside conservation areas benefit from permitted development rights.
The Merton Park conservation area features distinctive Arts and Crafts housing from the early 1900s. Extensions here require careful design that reflects the original architectural character, including materials, window proportions and roof forms. We have experience working within these specific design constraints.
A regenerating area with a mix of Victorian terraces and post-war housing. Properties offer strong potential for rear extensions, loft conversions and full refurbishments. Good transport links via the Northern Line make Colliers Wood increasingly popular for families extending their existing homes.
Frequently Asked Questions About Architects in Wimbledon
We are here to help with your Wimbledon extension, loft conversion or planning query.
- Free initial consultation
- Merton Council planning experts
- In-house structural engineers
- Fixed-fee pricing guarantee
It depends on the size and your property's location. Many single-storey rear extensions fall under permitted development rights. However, properties in conservation areas — including Wimbledon Village, Wimbledon Hill and Merton Park — may need full planning permission. We check your property's status before we start.
Construction costs for a single-storey rear extension typically sit around £2,200–£3,000 per square metre, plus professional fees. Costs depend on specification, access and ground conditions. We provide clearer estimates after surveying your property.
Yes. The Victorian properties around Wimbledon Hill and Wimbledon Park are well suited to rear dormer loft conversions. A dormer adds a full-width room at roof level — typically used as a master bedroom and en suite or a dedicated home study.
Very common. Rear dormers are one of the most popular home improvement projects across the Wimbledon area. They add valuable floor space without changing the front elevation — which is particularly important in conservation-sensitive streets around the Village and Wimbledon Hill.
Yes, but your permitted development rights may be restricted. Extensions in conservation areas such as Wimbledon Village, Wimbledon West or Merton Park typically require a full planning application. We design proposals that respect the conservation area character while meeting your space needs.
Yes. Our in-house structural engineers handle beam calculations, steelwork specifications and foundation design. This saves you the cost and time of hiring a separate structural engineer.
From initial consultation to a planning decision, expect 10 to 14 weeks including survey, design development and the statutory determination period. Permitted development projects are usually completed faster.
Yes. The distinctive Arts and Crafts homes in Merton Park require a sensitive design approach that complements their original architectural character. We design extensions that use appropriate materials and proportions to work with these unique properties.
If your extension involves building on or near a shared boundary or excavating near a neighbour's foundation, the Party Wall Act applies. We advise on requirements and can recommend experienced party wall surveyors.
Yes. We review the decision notice, identify the specific reasons for refusal and redesign the scheme to address them. Many refusals relate to scale, design detail or neighbour impact — all of which can be resolved with a more considered design approach.
Yes. Our in-house construction team can deliver your project from design through to completion, ensuring continuity and quality throughout.
Ready to Start Your Wimbledon Project?
Book a free consultation and let us show you what is possible with your home.
Our Portfolio
Rainham, London
Rear Extension
Single-storey rear extension with bi-fold doors and contemporary kitchen design.
Gerrards Cross
Rear Extension
Elegant rear extensions with big bifold doors, apex windows and skylights, flooding the space with maximum natural light.
Ilford, London
rear Extension
Modern rear wraparound extension to a victorian property creating seamless indoor-outdoor living with floor-to-ceiling glazing.
Croydon, London
Wraparound Extension
L-shaped wraparound extension maximising ground floor living and dining space. On this project we actually completed the loft dormer extension, double storey side and partial first floor rear extensions too!
Kensal Rise, London
Wraparound Extension
Side and rear wraparound extension with modern kitchen and open-plan family area. Featuring big crittal doors and large skylights on the sloping roof.
Wandsworth, London
Wraparound Extension
Full wraparound extension with panoramic glazing and premium specification. Can you spot the overall balance with the L-shape loft dormer extension we also designed for this client?
Bromley, London
Double Storey Extension
Two-storey side extension with matching brickwork, extra bedrooms and bathrooms. In fact we also re-designed the entire loft space and had major approvals for an approx 6m by 14m ground floor wraparound extension!
Windsor
Double Storey Extension
Grand double-storey rear extension with integrated garage and a full internal remodel of the entire home.
Richmond, London
DOUBLE STOREY EXTENSION
Grand double storey rear extension with open-plan kitchen-diner and master suite above.
Merton, London
Loft Conversion
Hip-to-gable dormer loft conversion/extension to accomodate a master suite with a walk-in wardrobe and a modern ensuite.
Purley, London
Loft Conversion
Front cottage dormers and a large rear box dormer extension/conversion with Juliet balcony and vaulted ceiling bedrooms. This was pure luxury.
Thames Ditton, Surrey
Loft Conversion
Hip-to-gable loft dormer conversion/extension with premium finish. We had to design something different as opposed to the standard dormer extension so it can blend in with the rest of the extensions we designed for this house.
East London
Flat Conversion
Victorian end of terrace mixed use properties converted into a luxury two-bedroom flats with modern amenities.
Crystal Palace, London
Flat Conversion
Property subdivisions into modern self-contained apartments.
Barnet, London
Flat Conversion
Full house-to-flats conversion with multiple large extensions and comprehensive planning and building regulations approval.
Wembley, London
New Build
Contemporary new-build family homes with open-plan living and sustainable design features.
Surrey
New Build
Bespoke new-build bungalow development designed from foundation to completion.
Harrow, London
New Build
Multi-unit new-build project with distinctive architectural detailing and landscaping.
