Home Extension Builders in Battersea

Home extension cost in Battersea typically ranges from £50,000 to £120,000+. A single-storey rear extension (3m x 4m) costs £50,000–£70,000, larger single-storey extensions run £70,000–£90,000, side returns £40,000–£58,000, and double-storey extensions £90,000–£120,000+. Costs vary based on groundworks, finishes, and conservation conditions. Buildaway provides full itemised home extension cost Battersea breakdowns before work begins.

Home extension cost in Battersea runs 25–30% above the UK national average due to South West London labour rates and premium material costs across SW11 and SW8. A single-storey rear extension averaging £35,000–£50,000 nationally sits at £50,000–£70,000 in Battersea. Buildaway offers transparent, no-hidden-fee estimates throughout.

Most home extensions in Battersea complete within 12 to 20 weeks. Single-storey rear extensions take 12–14 weeks, side returns 10–12 weeks, and double-storey extensions 16–20 weeks. Conservation area consents and party wall agreements may add further lead time. Buildaway sets clear programme dates from the outset and keeps you informed throughout.

Buildaway offers single-storey rear extensions, side return extensions, double-storey additions, wrap-around extensions, and garage conversions across Battersea. Our home extension specialists assess your property’s footprint, boundary conditions, and local planning constraints before recommending the best approach and creating tailored home extension plans in Battersea.

We begin with a free site survey covering structure, boundaries, drainage, and any planning or conservation requirements specific to Battersea. We talk through your home extension ideas and work through costs for your property type. Buildaway manages all architectural drawings, structural calculations, and submissions to Wandsworth Council — through to Building Control completion certificates.

Yes — our in-house team of architects, structural engineers, and tradespeople handles everything: planning applications, party wall agreements, conservation consents, Building Control submissions, and all construction trades. As a fully integrated home extension company in Battersea, you have one point of contact from first consultation to final handover.