House Extensions in Putney, SW15

GS Renovation designs and builds extensions throughout Putney, working with the bay-fronted Victorian and Edwardian terraces, closet wings and side returns that define SW15. Drawing on more than 30 years of building experience, we handle the groundworks, the steel, the roof and the full fit-out so your extension is one continuous, accountable project.

Steel and new floor joists set out on a rear extension built by GS Renovation at a UK home — The steel seated and the joists hung off it, with the cavity wall closed and scaffold still in place.

Side-return and rear extensions in Putney

The most popular extension in Putney fills in the side return, the narrow strip of yard alongside the rear closet wing, and often pushes out to the back as well. On these terraces that turns a cramped galley kitchen into a wide, open-plan kitchen-diner. The work involves new foundations dug clear of the neighbour's wall, steel beams to carry the existing structure, and a flat or glazed roof to bring in light where the return once cast shade.

Because you are typically building right up to the boundary, party wall matters almost always arise on these SW15 projects, and excavating near a neighbour's foundations triggers notice requirements under the Party Wall etc. Act. We coordinate the structural steel, the drainage that often runs through the closet wing footprint, and the render or brickwork so the new elevation sits comfortably against the original Victorian back addition.

Planning and permitted development in SW15

Whether your Putney extension is permitted development or needs a full planning application depends on the property and its size. Many single-storey rear extensions on unlisted terraces fall under permitted development, but if your home is in one of Putney's conservation areas, is a flat, or has had permitted rights removed, you will need to apply to Wandsworth Council. Double-storey and wrap-around schemes far more often need permission, and we advise honestly on which route yours falls under.

Whatever the planning position, the structural side of the extension is governed by the building regulations, so foundations, beams, insulation, drainage and fire safety are all inspected by building control regardless. We can manage the drawings, the Wandsworth Council submission and the building control notices together, then carry out the groundworks, steelwork, roofing, glazing and internal fit-out as a single team from first dig to final decoration.

Single and double storey extensions
Full fit-out, finishing and making good
Steel goalpost frames where the rear wall opens up
Flat and pitched roofs with rooflights or lanterns
Bi-fold, sliding and French door openings to the garden

Service areaPutney · SW15

Local authorityWandsworth Council

Part ofSouth West London (Inner London)

Typical homesEdwardian terraces and riverside homes

Also covered nearbyBattersea, Balham, Tooting and Wandsworth

Why Choose GS Renovation in Putney

Putney homeowners choose GS Renovation because we take an extension from foundations to finished room without handing you between trades. We understand SW15 terraces, their closet wings and side returns, the party wall obligations that come with building to the boundary, and the difference between permitted development and a Wandsworth Council application. Thirty years of local experience keeps the project on track.

Structural engineer instructed and coordinated on your behalf
Brick and mortar matched to the existing elevation
Building control inspected at foundation, damp course and steel stages
Garden levels and access made good where the build meets outside
Dust screens and floor protection in occupied homes
Itemised pricing, so you can see what every stage costs

Written and reviewed by Abdelaaziz Saaid, founder of GS Renovation Ltd, who has spent more than 30 years on the tools and on site in London homes. Structural design is specified by the consulting engineer appointed to your project.

FAQ

Frequently Asked Questions about House Extensions Putney

Which parts of a house extensions project in Putney cost the most?

It depends on the house, which is exactly why the survey comes first. In two and three-bedroom Victorian terraces, a good many now split into flats the reinstatement often outweighs the structural element of house extensions, whereas a newer SW15 property is the other way round. GS Renovation prices the two separately so a Putney client can see the balance. Phasing the work is then possible if the budget needs it. Ring 07472 424 226 and GS Renovation will talk through phasing options for an SW15 home. As a rough guide, house extensions in London typically starts from roughly £40,000 for a single-storey rear extension and rises with size and specification (indicative London ranges, MyBuilder and Checkatrade, 2026). Your figure depends on the size, specification and condition of the property, which is why we survey before quoting.

Which extension adds most to a Putney house?

Usually the one that fixes the kitchen's relationship with the garden. Putney houses frequently have a rear kitchen that is narrow, dark and separated from the outside space, so a rear or side return extension that opens the back of the house changes daily use more than additional bedrooms would. What the plot can spare and how much daylight reaches the rooms behind set the limit.

What happens if a Putney neighbour objects to a planning application?

The application is decided on planning grounds rather than on the objection itself. A neighbour to your Putney property can comment on matters such as overlooking, loss of light and the effect on the street, and the council weighs those against its policies. Objections about disruption during building work are not planning matters. Discussing a scheme with neighbours before submitting it usually reduces the number that arrive.

What if the neighbour is extending at the same time in Putney?

It can work in everyone's favour if the two are coordinated. Where adjoining Putney properties are both building, sharing scaffolding, agreeing a common boundary treatment and sequencing noisy work can reduce cost and disruption for both. Each still serves its own obtains its own approvals. Where the schemes are not coordinated, the boundary detail is where the problems appear.

Does an extension affect the rest of a Putney house?

It changes the rooms it leaves behind, which is easy to overlook. Building out from the back of your Putney house puts the original rear rooms further from daylight and can turn one into a through route rather than a room. The design accounts for that with rooflights, a glazed link or a shallower plan. The extension is judged on what the whole ground floor becomes.

Does a Putney extension need a structural engineer?

Wherever the existing house is opened into it, which is nearly always. At a Putney property the rear wall carries floors and often roof, so forming the opening needs a beam designed for the span and the load. The foundations for the new structure are designed too. We appoint the engineer and build to the design rather than producing calculations ourselves.

House Extensions Putney

Side-return and rear extensions in Putney

Planning and permitted development in SW15

Why Choose GS Renovation in Putney

Rated 4.9 / 5 by our clients

Frequently Asked Questions about House Extensions Putney

More GS Renovation Services in Putney

House Extensions Near Putney

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