GS Renovation designs and builds extensions across Beckenham, adding space to the Edwardian villas and interwar semis that define BR3. With over 30 years of experience in the borough, we handle everything from foundations and steelwork to the roof and full fit-out, and we advise clearly on whether your project is permitted development or needs planning permission from Bromley Council.
Side-return and rear extensions in Beckenham
The classic Beckenham extension fills in the side return of a bay-fronted terrace, widening a narrow kitchen into a bright, open-plan space. On the larger Edwardian villas we build full-width rear or wrap-around extensions, and on the interwar semis a double-storey addition can add a bedroom and en-suite above a new kitchen-diner. Each project starts with proper foundations and groundworks matched to the clay subsoil common across BR3.
Steel beams tie the new opening back into the existing structure, sized by our engineer and signed off by building control. We coordinate the roof works, whether a flat roof with rooflights or a pitched roof to match the original, then handle the full fit-out including plastering, electrics, plumbing and decoration. One team runs the whole build, so the extension reads as part of the house rather than a bolt-on addition.
Planning and party walls in Beckenham
Many single-storey rear extensions in Beckenham fall under permitted development, but this is never guaranteed. Larger projects, anything to the front, and homes in a conservation area or with an Article 4 direction will need a full planning application to Bromley Council. We assess your specific property first, then prepare drawings and manage the application where one is required, so you know exactly where you stand before any work begins on site.
Extensions on a Beckenham terrace or semi almost always engage the Party Wall Act, because you are building up to the boundary shared with a neighbour and excavating foundations near their wall. You serve the coordinate any surveyor involved, and keep the adjoining owners informed. Separately, building regulations govern the structure, insulation and drainage, with building control inspecting at key stages through the build.
- First fix and second fix plumbing and electrics throughout
- Steel goalpost frames where the rear wall opens up
- Building control inspections at foundation, damp course and steel stages
- Scaffolding, site set-up and safe access on tight London plots
- Roof works and structural alterations at roof level
Trusted House Extensions in Beckenham
Beckenham owners choose GS Renovation because we join up the design, the planning or permitted-development route and the build under one roof. With 30+ years extending BR3 terraces, villas and semis, we know the local plots, the clay subsoil and the Bromley Council process, and we finish with a tidy, fully signed-off extension.
- A dedicated project manager from first survey to handover
- Weathertight shell reached before the fit-out begins
- Building control applications and inspections coordinated for you
- A written scope and programme agreed before work starts
- Foundation depth set after trial holes, drains and trees are checked
- Scaffolding and site set-up planned for tight London plots