Architects Putney: 42 Projects, 60 Live Applications, Based on Roehampton Lane SW15
Extension Architecture is a RIBA chartered and ARB registered architectural practice based at 231 Roehampton Lane, SW15. We have completed 42 projects across Putney and currently manage 60 live planning applications with Wandsworth Council. Our planning approval rate is 98% across 2,220 projects in London and Surrey. If youre looking for architects Putney with a verifiable local track record, those numbers represent 17 years of continuous practice in this specific part of south west London. You can also watch our Putney architects project video to see completed local projects from survey through to finished build.
Do I Need Planning Permission for a House Extension in Putney?Often yes. Many Putney streets have Article 4 Directions that remove permitted development rights. A full planning application to Wandsworth Council is required even for modest rear extensions on these streets.
Putney has more than a dozen conservation areas. These include West Putney, Putney Heath, Putney Lower Common, Oxford Road, Dover House Estate, Westmead, Deodar Road, and Parkfields. Each has its own rules on materials, rooflines, and extensions.
Several of these, including Dover House Estate, Putney Lower Common, and Roehampton Village, also carry Article 4 Directions. These remove permitted development rights on top of the conservation area controls.
On streets without Article 4 Directions, standard permitted development limits apply. Up to 3 metres deep for terraced houses, 4 metres for detached. Under the larger home extension scheme, these extend to 6 and 8 metres respectively through a neighbour notification process.
We check your specific address free of charge before any design fee is agreed. The answer determines your planning route before any money is spent.
What Types of Extensions Work Best on Putney Victorian and Edwardian Terraces?
Putney terraces across SW15 suit single storey rear extensions, side returns, wraparound additions, double storey extensions, and loft conversions. Victorian homes here sold for an average of £1.1 million in 2026.
Single storey rear extension: Opens the ground floor kitchen into a proper dining and living space. Connects the house to the garden. Most common project type across SW15. Often subject to Article 4, meaning a full planning application is required.
Side return extension: The narrow strip alongside the kitchen is typically between 1 and 1.5 metres wide. Incorporating it adds meaningful floor width. The rooflight over the side return is the design detail that makes it work, dropping natural light onto the work surface during the day.
Wraparound extension: Combines rear and side in one build. More cost effective than two separate projects. Creates the largest possible ground floor footprint on a Putney terrace within what the plot allows.
Double storey rear extension: Adds space on both floors simultaneously. A bedroom above the new kitchen extension. Planning permission always required. Recent completed example: double storey extension and full refurbishment on Putney Bridge Road.
Loft conversion: Velux, dormer, and hip to gable options all designed in house. Staircase position is planned at the design stage, not resolved during the build. Recent completed examples: projects at 1 Dyers Lane and 1 Hansler Road in SW15.
How Long Does a Putney Planning Application Take?
Wandsworth Council targets 8 weeks for standard householder applications from validation. Conservation area cases take up to 13 weeks. Planning permission remains valid for 3 years.
The 8 week clock starts from the date the application is formally validated, not the date it is submitted. Incomplete applications are not validated. Incomplete applications that generate officer queries pause the clock and restart it when information is received.
Our 60 live applications with Wandsworth Council give us a current and accurate picture of what gets approved locally and what generates objections. Applications that arrive complete, with accurate drawings and a site specific design and access statement, move through the standard 8 week period without complications.
Recent Putney projects completed through Wandsworth planning:
Feasibility study and flat conversion on Dyers Lane
Single storey rear extension on Medfield Street
Single storey rear extension on Roseneath Road
Double storey extension and full refurbishment on Putney Bridge Road
What Happens if My Putney Planning Application Is Refused?
A refusal is not the end. Most refused Putney applications can be revised and resubmitted. Extension Architecture reviews refusal reasons, amends the design, and resubmits in most cases without an additional design fee.
A refusal notice sets out the specific reasons for the decision. These are the starting point for any resubmission. In most cases, the issues are design related rather than fundamental objections to the type of project. Amending the drawings to address the stated reasons and resubmitting within 12 months is the most common route forward.
Our 98% approval rate reflects the preparation that goes into applications before submission. Identifying likely objections at the design stage is what keeps refusals rare.
What Does One Fixed Fee Cover on a Putney Extension Project?
Extension Architecture works on a fixed fee covering planning application drawings, building regulations, structural engineering, interior design, and project management. It does not change unless the brief changes.
Our in house structural engineer is the detail that matters most for Putney projects. Only around one in twenty architectural firms have this. Structural calculations are produced alongside the architectural design from day one. No separate specialist. No coordination delays between consultants who are not communicating with each other.
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