Extension and loft costs in Kingston upon Thames

Mostly Victorian and Edwardian terraces near the centre, with interwar semis and detached houses in New Malden, Surbiton and Chessington.

• House extension cost in Kingston upon Thames

  A single-storey rear extension typically £64,000 to £100,000 all in.

  Expected £82,000

  £64,000£100,000
• Side-return extension cost in Kingston upon Thames

  A side-return extension typically £47,000 to £77,000 all in.

  Expected £62,000

  £47,000£77,000
• Loft conversion cost in Kingston upon Thames

  A loft conversion with a rear dormer typically £65,000 to £102,000 all in.

  Expected £84,000

  £65,000£102,000

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.