GS Renovation designs and builds extensions throughout Hampstead, working with the bay-fronted Victorian and Edwardian terraces of NW3 and the larger villas nearer the Heath. Drawing on more than 30 years in North London, we take on the foundations, the steelwork, the roof and the full fit-out, so your new space is built once and built properly.
Side-return and rear extensions in Hampstead
The classic Hampstead extension fills the side return alongside the rear closet wing, widening a narrow kitchen into a bright open-plan room facing the garden. We dig and pour the foundations, allowing for the mature trees and clay ground common across NW3, then form the new walls and roof. A steel beam sized by the engineer carries the original rear wall once it opens into the new floor area.
Wrap-around extensions take that side return and combine it with a rear projection to transform the ground floor of a terrace. Double-storey schemes add a bedroom or en-suite above. On homes near the village conservation area, external changes are handled sensitively, matching brick, pointing and window details so the addition sits comfortably against the period frontage rather than looking bolted on.
Planning and party walls near Camden
Whether your extension is permitted development or needs a full planning application depends on the property. A modest single-storey rear extension may fall under permitted development, but homes in the Hampstead conservation area, or any listed building, usually need permission from Camden Council, and larger or double-storey schemes almost always do. We advise honestly on which route yours takes before you commit to a design.
Because your extension builds off or against a shared boundary, the Party Wall Act typically applies, so notices go to the neighbour before we break ground. Alongside that, every extension is inspected under building regulations for foundations, structure, insulation and drainage. We coordinate the drawings, the party wall steps and the building control inspections so the whole project moves as one across NW3.
- Architectural drawings and structural engineer coordination
- Insulation, airtightness and thermal detailing to regulations
- Building control inspections at foundation, damp course and steel stages
- Foundations, groundworks and steel frames
- Party Wall Act notices for excavation near a neighbour's wall
Why Choose GS Renovation in Hampstead
Hampstead homeowners choose GS Renovation because we handle the extension end to end, from groundworks and steel to roofing, glazing and the final decoration. We are candid about whether you need planning permission or permitted development, we coordinate around the party wall award, and 30+ years in the borough means we build to suit these period terraces and villas.
- Weathertight shell reached before the fit-out begins
- Foundation depth set after trial holes, drains and trees are checked
- Drainage diverted or built over with the right approval in place
- Neighbours given notice before the noisy stages
- Fully insured, with cover in place on every site
- Our own trades on site rather than a chain of subcontractors