GS Renovation designs and builds house extensions throughout Coulsdon, where the 1930s semi-detached and interwar houses tend to sit on generous plots with room to grow. Drawing on more than 30 years across Croydon and CR5, we handle everything from foundations to the final fit-out under one accountable team.
Rear and side-return extensions in Coulsdon
The wide plots common to Coulsdon's interwar houses suit rear extensions that stretch into the garden and side extensions that use the space beside the semi. A single storey rear extension typically opens the kitchen into a large kitchen-diner, which usually calls for a steel beam across the old rear wall, while a wrap-around design combines the rear and the side return into one broad living space.
We start with the groundworks, digging and pouring foundations to a depth agreed with building control for the ground conditions on your plot. Steel beams carry the openings, the roof is tied into the existing structure, and we complete the fit-out including plastering, electrics, plumbing, heating and decoration. You deal with one team from the first trench to the final coat of paint.
Planning and permitted development in Coulsdon
Whether your Coulsdon extension needs planning permission depends on the property. Many single storey rear extensions on these interwar plots fall under permitted development, which means no full application to Croydon Council, though double storey work, larger footprints and anything close to a boundary often does need a planning application. We assess your specific house and advise honestly which route applies before you commit.
Separate from planning, every extension must meet building regulations for its foundations, structure, insulation, drainage and fire safety, inspected as the work proceeds. Where the new build sits against the party wall shared with a neighbouring semi, the Party Wall etc. Act 1996 also applies, so you serve the necessary notices. We keep planning, building control and party wall matters running in step.
- Party Wall Act notices for excavation near a neighbour's wall
- Roof works and structural alterations at roof level
- Levels, drainage and landscaping made good around the new build
- Planning applications and permitted development assessments
- Drainage diversion and build-over agreements with the water authority
The GS Renovation Difference in Coulsdon
GS Renovation gives Coulsdon homeowners a single point of responsibility for the whole extension, from checking whether you need planning permission to pouring foundations, setting steel and finishing the interior. Thirty years of building across Croydon means we know the interwar stock, the generous plots and Croydon Council's requirements, so the project runs to plan.
- Waste cleared as we go, not left piled in the garden
- Building control applications and inspections coordinated for you
- Foundation depth set after trial holes, drains and trees are checked
- Site left safe and secure at the end of every day
- Building control inspected at foundation, damp course and steel stages
- A dedicated project manager from first survey to handover