GS Renovation designs and builds extensions across Carshalton, working with the bay-fronted Victorian and Edwardian terraces and interwar semis that fill SM5. With over 30 years in the Sutton area, we handle foundations, steel, roofing and the full fit-out, and we tell you clearly whether your project is permitted development or needs an application to Sutton Council.
Side-return and rear extensions in Carshalton
The classic Carshalton terrace has a rear closet wing and a narrow side return, and infilling that side return transforms a cramped galley kitchen into a wide, open kitchen-diner. We dig and pour the foundations, tie the new structure into the existing solid brickwork and install the steel beams needed to open the back of the house. A glazed roof or rooflights then floods the deeper plan with light.
Wrap-around extensions combine the side return with a rear projection for even more space, popular where the interwar semis nearer Cheam offer a slightly more generous plot. Whether it is a modest rear addition or a full wrap-around, we sequence the groundworks, structure, roof and internal fit-out as one managed job, so your Carshalton home stays watertight and progresses steadily from footings to finish.
Planning and party walls in Carshalton SM5
Many single-storey rear extensions in Carshalton fall under permitted development, but this is not guaranteed. If your home has been extended before, sits on a corner plot, or falls within any local restriction, you will need a full planning application to Sutton Council. We assess your specific property first and advise honestly, rather than assuming, so there are no surprises once work is under way.
Double-storey extensions almost always need planning permission, and any extension involving excavation near a boundary or attaching to a shared wall brings the Party Wall Act into play. Given how tightly these SM5 terraces sit together to neighbours are common. We manage the planning route, the building regulations and the party wall process together so the whole project stays on track.
- Foundations, groundworks and steel frames
- Planning applications and permitted development assessments
- Building control inspections at foundation, damp course and steel stages
- Flat and pitched roofs with rooflights or lanterns
- Bi-fold, sliding and French door openings to the garden
Why Choose GS Renovation in Carshalton
Carshalton homeowners choose GS Renovation because one team carries the extension from foundations to final coat. We advise honestly on whether Sutton Council planning is needed or your project is permitted development, size the steels, handle party wall notices with tightly packed neighbours and finish to a high standard. Over 30 years across SM5 means fewer surprises and a genuinely accountable build.
- Dust screens and floor protection in occupied homes
- Foundation depth set after trial holes, drains and trees are checked
- Registered in England, Companies House no. 14611254
- Free, no-obligation quotations
- Site left safe and secure at the end of every day
- Drainage diverted or built over with the right approval in place