House Extensions Willesden

GS Renovation designs and builds extensions across Willesden, from single storey rear additions to full wrap-arounds on the Victorian and Edwardian terraces of NW10. With over 30 years in Brent, we handle groundworks, steelwork, roofing and the complete fit-out, and we tell you honestly whether your plans are permitted development or need a planning application.

Side-return and rear extensions in Willesden

The bay-fronted terraces around Willesden Green and towards Harlesden nearly all have a side return, that narrow strip of open ground beside the rear closet wing. Filling it in is one of the most effective ways to widen a cramped Victorian kitchen and pull daylight in through a glazed roof. We dig and lay the foundations, tie the new structure into the existing brickwork, and open the flank wall with a steel beam.

A rear extension pushes further into the garden and often combines with the side return to form a wide, open-plan kitchen-diner across the back of the house. We manage the groundworks, the drainage connections, the steelwork over the new openings and the roof, then complete the plastering, glazing and finishes so you deal with one team from the first trench to the last coat of paint.

Planning and party walls for Willesden extensions

Many single storey rear extensions on NW10 terraces fall under permitted development, meaning you can build within set size and height limits without a full planning application. Larger schemes, double storey additions, anything to the front, and work in a conservation area or on a listed building will need permission from Brent Council. We assess your specific house and tell you which route applies before you commit, rather than assuming.

Because Willesden terraces are attached, excavating foundations near the boundary and building up against the party wall triggers the Party Wall Act, so notices go to your neighbours before we start. Whichever planning route your project takes, the structure is separately covered by building regulations, and building control inspects the foundations, the steel and the drainage as the extension goes up.

• Side-return and rear extensions
• Building control inspections at foundation, damp course and steel stages
• Trial holes to set foundation depth near drains and trees
• First fix and second fix plumbing and electrics throughout
• Insulation, airtightness and thermal detailing to regulations

Plenty of Willesden projects start with one job and grow, so it helps to see Home renovation in Willesden, House extensions across Brent, basement extensions and side return vs rear extension.

Why Willesden Homeowners Choose GS Renovation

Willesden owners choose GS Renovation because we build extensions end to end and stay honest about the rules. We know which NW10 projects are permitted development and which need Brent Council permission, you serve the party wall notices these attached terraces require, and 30+ years of local building means the foundations and steel are done properly.

• Photographs kept at each stage for your records
• Brick and mortar matched to the existing elevation
• Free, no-obligation quotations
• Insulation and thermal detailing to current regulations
• Founder-led team with 30+ years of hands-on experience
• Rated 4.9 from 31 reviews on MyBuilder

Written and reviewed by Abdelaaziz Saaid, founder of GS Renovation Ltd, who has spent more than 30 years on the tools and on site in London homes. Structural design is specified by the consulting engineer appointed to your project.