GS Renovation designs and builds extensions across Chiswick, working with the side returns and rear closet wings that define W4's Victorian and Edwardian terraces. With over 30 years in the area, we take on rear, side-return, wrap-around and double-storey projects from foundations to final fit-out, one accountable team throughout.
Side-return and rear extensions in Chiswick
The classic Chiswick project is filling the side return, the narrow strip beside the rear closet wing, to widen a cramped galley kitchen into an open-plan space that runs the full width of the house. We dig and pour foundations to suit the ground and any nearby trees, build the walls, and install the steel beams that carry the original rear wall once it comes out. Rooflights over the new zone bring daylight deep into the plan.
Because these are period terraces, we match brick and detailing where it shows and think hard about how the new roof meets the existing closet wing. Every W4 house is slightly different in plot width and orientation, so we plan drainage, party wall bearings and glazing around your specific layout. The result reads as part of the house rather than a bolt-on, with the structure and finishes handled together.
Planning and permitted development in W4
Some Chiswick extensions fall under permitted development and some need a full planning application to Hounslow Council, and which one applies depends on your property. Single-storey rear extensions within the permitted size limits often proceed under permitted development, but if your home sits in a conservation area, has been extended before, or you want a larger or double-storey scheme, a planning application is usually required. We advise honestly at the survey stage.
Whichever route applies, the build itself must meet building regulations, and where you extend against a shared boundary the Party Wall Act brings notice duties with your neighbours. We prepare and coordinate the drawings, handle the council submission or the certificate of lawful development, and manage the party wall notices. That way the paperwork and the construction stay joined up rather than becoming your problem to chase.
- Side-return and rear extensions
- Architectural drawings and structural engineer coordination
- Drainage diversion and build-over agreements with the water authority
- Roof works and structural alterations at roof level
- Scaffolding, site set-up and safe access on tight London plots
The GS Renovation Difference in Chiswick
Chiswick clients choose GS Renovation because we run the extension end to end, foundations, steelwork, roof, party wall coordination and the full fit-out, with clear advice on whether you need planning or can build under permitted development. Three decades on W4 terraces means we understand side returns and closet wings and deliver a space that belongs to the house.
- Brick and mortar matched to the existing elevation
- Our own trades on site rather than a chain of subcontractors
- Party Wall notices served for excavation near a neighbour's wall
- Permitted development checked before you pay for a planning application
- Honest updates if a date or a detail has to move
- Building control applications and inspections coordinated for you