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House extensions in Wandsworth

House extensions in Wandsworth: more kitchen, more bedroom, more you. Describe the project and up to 3 local builders will get in touch to quote.

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✅ What your house extensions covers in Wandsworth

  • Plans and drawings, or working to yours
  • Building regulations and party wall help
  • Foundations, walls, roof and windows
  • Plastering, electrics and plumbing coordinated
  • A clear timeline and staged payments

💷 Typical house extensions prices in Wandsworth

Single-storey rear extension£2,800 to £4,000 per m²
Double-storey extension£2,200 to £3,500 per m²
Side return extension£3,000 to £4,200 per m²
Typical London prices in 2026. A guide only; your quotes will depend on the job.

💬 Questions about house extensions in Wandsworth

Do I need planning permission in Wandsworth?

Many rear extensions fall under permitted development, so they don't need full planning permission. Rules are stricter in conservation areas and for flats. Check with the council or ask builders when they quote.

How long does an extension take?

A single-storey extension is often 3 to 5 months from first dig to final snag, plus time for plans and approvals. Your builder will give you a timeline.

What should the quote include?

A written breakdown of labour and materials, a start date, a payment schedule tied to stages of work, and who handles skips and waste.

📍 Where we find house extensions in Wandsworth

We find builders for house extensions across Wandsworth, including Battersea, Putney, Tooting, Balham and Wandsworth. That covers the SW11, SW12, SW15, SW17 and SW18 postcode districts.

Want more than house extensions?

✨ More jobs for builders in Wandsworth