Construction

Extensions

Single or double storey home extensions.

Typical UK cost
£25,000–£45,000
Single-storey rear
Get a free estimateUse the Extension Cost Calculator

What drives the price

Extension costs are driven by floor area, glazing, groundworks and finish level.

What we'll ask you

These questions come from the database, so each service can ask exactly what its specialists need.

  • What type of extension?
  • Approximate floor area?
  • Do you have plans or planning permission?
  • What finish level are you expecting?