UK construction cost guides

Plain-English 2026 price ranges for the most common UK renovation projects, with what's included and excluded in a typical written quotation.

• Loft conversion cost
  Dormer, mansard, hip-to-gable and L-shape pricing.
• Extension cost
  Single, two-storey, side-return, wrap-around prices.
• House refurbishment cost
  Strip-out to handover for terraces, semis and detacheds.
• Kitchen cost
  Replacement, extension and full-kitchen-island pricing.
• Bathroom cost
  Replacement, en-suite, family and luxury suite pricing.