GS Renovation designs and builds extensions across Streatham, adapting the bay-fronted Victorian and Edwardian terraces of SW16 for modern family living. With over 30 years in Lambeth, we handle everything from the side-return infill to the double-storey rear, taking your project from groundworks through steelwork to full fit-out.
Side-return and rear extensions in Streatham
The most popular Streatham extension fills in the side return, the narrow strip beside the rear closet wing, and pushes out to the rear to create a wide open-plan kitchen-diner. Because the original rear wall carries the floors and roof above, we install a steel beam sized by the engineer and infill the side return with a glazed roof or lantern to bring light deep into the plan.
We start with the groundworks, digging and pouring foundations to the depth building control requires, mindful of nearby trees and the clay subsoil common across South London. From there we build the walls, set the steel, close in the roof and complete the fit-out, keeping the works tidy while you live around them in your SW16 home.
Planning and permitted development in Streatham
Many single-storey rear extensions on Streatham terraces fall under permitted development, meaning no full planning application is needed, though we always confirm the property is not in a conservation area or subject to an Article 4 direction before relying on it. Larger schemes, double-storey rears and wrap-arounds usually need a full planning application to Lambeth Council, and we prepare the drawings and manage that submission for you.
Whether the route is permitted development or planning permission, the structural work always needs building regulations approval and sign-off, which is separate from planning. Where the extension sits against or excavates near a party wall, notices under the Party Wall Act apply too. We map out every consent your specific SW16 property needs so there are no surprises once the build is underway.
- Loft conversions and roof works
- Planning permission and permitted development
- Foundations, groundworks and steel frames
- Full fit-out, finishing and making good
- Architectural drawings and structural coordination
Why Choose GS Renovation in Streatham
Streatham homeowners choose GS Renovation because one team runs the whole extension, from foundations and steel to roofing and the final finish. We advise honestly on whether your scheme is permitted development or needs a Lambeth planning application, handle building control and party wall matters, and draw on 30+ years of building on SW16 terraces.
- Free, no-obligation quotations
- Over 30 years of hands-on experience
- Dedicated project management
- Fully insured and guaranteed work
- Building control and planning support
- Clean, tidy and reliable tradespeople