GS Renovation builds extensions on Belgravia properties, from the grand stucco townhouses to the compact mews houses tucked behind SW1's main terraces. Given how much of the area is listed or within a Westminster conservation area, every extension starts with the planning position. With over 30 years of experience, we manage groundworks, steel and fit-out as one project.
Planning and permitted development in Belgravia
Extensions in Belgravia are rarely straightforward permitted development. Because so many townhouses are listed and the whole neighbourhood sits within Westminster conservation areas, permitted development rights are usually restricted or removed, and a full planning application to Westminster City Council is often needed. We assess your property's exact status early, so you know whether you are looking at permitted development, planning permission, or listed building consent before any design is finalised.
Where a rear or side-return extension is feasible, we prepare the design, foundations and structural scheme to satisfy both the council and building control. On listed properties we work sympathetically with the original fabric, and we coordinate the drawings, applications and party wall matters so the approval process is handled properly from the outset.
Rear and mews extensions in SW1
Belgravia's mews houses offer real potential for careful extension and remodelling, whether adding to the rear, reworking the roof or opening up the ground floor. These smaller SW1 properties often need steel beams to create the open living space owners want, all sized by a structural engineer and signed off by building control. We handle the groundworks, foundations and full fit-out under one team.
On the larger townhouses, rear extensions must respect the shared party walls, so you serve Party Wall Act notices before excavating or building against a neighbour's structure. From foundations and steelwork to roofing, plastering, electrics and the final decoration, we deliver a finished extension that suits the period character and the standards expected on a Belgravia address.
- Party Wall Act notices for excavation near a neighbour's wall
- Flat and pitched roofs with rooflights or lanterns
- First fix and second fix plumbing and electrics throughout
- Full fit-out, finishing and making good
- Architectural drawings and structural engineer coordination
Trusted House Extensions in Belgravia
GS Renovation understands that a Belgravia extension is shaped as much by listing and conservation rules as by construction. We establish the planning position with Westminster City Council first, then deliver foundations, steel, roofing and fit-out as one accountable team. With 30+ years in SW1, you get a compliant, well-built extension and no surprises.
- Site left safe and secure at the end of every day
- Free follow-up visit after completion if anything needs attention
- A written scope and programme agreed before work starts
- Garden levels and access made good where the build meets outside
- Building control inspected at foundation, damp course and steel stages
- Drainage diverted or built over with the right approval in place