GS Renovation designs and builds extensions on Chelsea's period homes, from Georgian townhouses near the King's Road to Victorian properties across SW3. With over 30 years in the Royal Borough of Kensington and Chelsea, we handle foundations, steelwork, roofing and fit-out, and guide you through whether your project is permitted development or needs full planning permission.
Rear and side-return extensions in Chelsea
The most common extension across Chelsea's period stock is a rear or side-return addition that widens a cramped kitchen at the back of the house. We dig and pour new foundations, taking care around the mature trees and neighbouring structures typical of SW3 gardens, then build up in brick or with large glazed openings. Steel beams sized by a structural engineer carry the new openings and any removed rear wall, all inspected under the Building Regulations.
On larger plots we build double-storey and wrap-around extensions that add bedrooms and bathrooms above the new ground floor space. Whether your extension is permitted development or needs a full planning application depends on the property, and in Chelsea that balance tips towards planning because so much of the area is conservation-designated or listed. We assess your home, prepare the drawings and submit to the Royal Borough of Kensington and Chelsea where consent is required.
Planning and party walls in Chelsea
Chelsea sits almost entirely within conservation areas overseen by the Royal Borough of Kensington and Chelsea, and many townhouses are individually listed. That means extensions here rarely qualify as permitted development and usually need planning permission, with listed building consent on top where the property is protected. We advise honestly on what is achievable, design sympathetically to the Georgian and Regency character, and manage the application so your project starts on solid legal footing.
Because these houses are terraced, extensions almost always trigger the Party Wall etc. Act 1996, with excavation near the boundary and building against shared walls. We serve the correct notices and work with party wall surveyors before breaking ground. Once the shell is complete, our team handles the full fit-out, including plastering, electrics, plumbing, heating, flooring and decoration, so you deal with one contractor from foundations through to the finished, habitable room.
- Full fit-out, finishing and making good
- Architectural drawings and structural coordination
- Single and double storey extensions
- Side-return and rear extensions
- Wrap-around extensions and infills
Why Choose GS Renovation in Chelsea
Homeowners across SW3 choose GS Renovation because we manage the entire extension in-house, from planning drawings and party wall notices to groundworks, steel, roofing and finishing. With 30+ years in the Royal Borough of Kensington and Chelsea, we understand the conservation and listed constraints on period townhouses and deliver work that respects their character.
- 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