Loft Conversion Costs in the UK

Typical range: £20,000–£50,000 for a basic conversion; complex projects can exceed £100,000.

Cost Breakdown

• Structural work (beams, trusses): £5,000–£10,000
• Roofing (tiles, slates, labour): £2,000–£5,000
• Windows (Velux standard): £1,000–£2,000
• Flooring (carpet/hardwood): £1,000–£2,000
• Plumbing & electrical: £2,000–£5,000
• Plastering & painting: £2,000–£5,000

Add planning permission, building‑regs fees, and professional fees. Obtain multiple detailed quotes before committing.