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House Extension Costs Southend & London 2025 | Citadel Construction
Discover average house extension costs in Southend & London for 2025. Get accurate pricing, tips, and a free quote from Citadel Construction.
How Much Does a House Extension Cost in Southend & London?
Planning an extension? Knowing the average cost upfront helps you budget and make confident decisions. Costs depend on size, materials, and style
Extension Type
Average Cost Southend
Average Cost London
Single-Storey Rear
£18,000 – £35,000
£25,000 – £45,000
Double-Storey
£45,000 – £70,000
£60,000 – £90,000
Side Return
£25,000 – £40,000
£35,000 – £55,000
Wrap-Around
£50,000 – £85,000
£65,000 – £100,000
Garage Conversion
£8,000 – £15,000
£10,000 – £20,000
Factors Affecting Price
- Materials: brick vs cladding, windows, flooring
- Labour & timeframe
- Planning permissions & structural requirements
- Location: London premiums vs Southend
Why Citadel Construction?
- Fixed, transparent pricing
- Local expertise in Southend & London
- Full project management
- High-quality materials & certified trades
Contact Us
Ready to get started on your next project? Contact us today to schedule a consultation and learn more about our services. We look forward to working with you!