Extension and loft costs in Wandsworth

Mostly Victorian and Edwardian terraces, including many narrow streets around Clapham and Balham, with larger houses near the commons.

• House extension cost in Wandsworth

  A single-storey rear extension typically £67,000 to £105,000 all in.

  Expected £86,000

  £67,000£105,000
• Side-return extension cost in Wandsworth

  A side-return extension typically £49,000 to £80,000 all in.

  Expected £65,000

  £49,000£80,000
• Loft conversion cost in Wandsworth

  A loft conversion with a rear dormer typically £68,000 to £106,000 all in.

  Expected £87,000

  £68,000£106,000

This report is an informed estimate built from public data about your property and current London build costs. It is not a survey, a quote, a valuation or planning advice. Always get written quotes and, where noted, professional advice before committing to work.