Home Extensions: Planning, Cost and Timeline for UK Properties

Moving house is expensive, disruptive, and stressful. For many UK homeowners, a well-designed extension offers a smarter alternative. COMMON TYPES OF EXTENSIONS Single-Storey Rear Extension The most popular option for UK homes. Under permitted development, you can extend up to 4 metres from the rear wall of a detached house, or 3 metres for semi-detached and terraced properties. Double-Storey Extension Adds two floors of additional space. Double-storey extensions always require planning permission and must comply with the 45-degree rule. Side Return Extension Uses the unused alleyway alongside a terraced or semi-detached house. Wrap-Around Extension Combines a rear and side extension into a single L-shaped structure for maximum floor area. HOW MUCH DOES AN EXTENSION COST? Single-storey (20-30 sqm): ??30,000 ??? ??55,000 Double-storey (40-60 sqm): ??60,000 ??? ??120,000 Side return (15-25 sqm): ??25,000 ??? ??50,000 Wrap-around (50-70 sqm): ??75,000 ??? ??150,000+ HOW LONG DOES AN EXTENSION TAKE? Single-storey extension: 8 to 12 weeks Double-storey extension: 12 to 16 weeks Side return: 6 to 10 weeks Wrap-around: 14 to 20 weeks GET A FREE EXTENSION QUOTE Ready to extend your home? Lucstar Construction provides free surveys and fixed-price quotations for extensions across the North West.