NW London Renovation Cost Guides
Renovation Costs in Hampstead & NW London
Three-tier pricing guides for extensions, loft conversions, basements, and full renovations across 26 areas. Free to use, no obligation.
How It Works
Browse cost guides
Explore three-tier cost estimates for 20 project types across 26 NW London areas.
Compare specifications
See budget, mid-range, and premium cost breakdowns for your project type.
Understand local factors
Learn how conservation areas, property types, and site conditions affect costs.
Submit your brief
Tell us about your project and we'll match you with vetted local professionals.
Get accurate quotations
Receive project-specific quotes from professionals who know your area.
Popular Cost Guides
Three-tier pricing for the most common renovation projects in NW London.
Rear Extension Cost
£35,000–£55,000 to £85,000–£130,000
per project
Loft Conversion Cost
£40,000–£60,000 to £90,000–£140,000
per project
Basement Conversion Cost
£150,000–£250,000 to £400,000–£700,000+
per project
Full House Renovation Cost
£100,000–£200,000 to £400,000–£800,000+
per project
Kitchen Renovation Cost
£15,000–£25,000 to £45,000–£80,000+
per project
Side Return Extension Cost
£25,000–£40,000 to £65,000–£95,000
per project
Period Property Renovation Cost
£1,500–£2,500/m² to £3,500–£5,000+/m²
per m²
New Build Cost
£2,500–£3,500/m² to £5,000–£8,000+/m²
per m²
NW London Specific
Cost data calibrated for Hampstead, NW3, NW6, NW8, and surrounding areas. Not generic national averages.
Three-Tier Pricing
Every guide shows Budget, Mid-Range, and Premium estimates so you can plan at the right specification level.
Vetted Professionals
When you're ready, we connect you with vetted local architects and contractors who know your area.
No Obligation
All cost guides are free. If you submit an enquiry, there is no obligation to proceed with anyone we introduce.
Conservation Area Cost Premiums
Many areas in NW London fall within conservation zones, which can add 10–20% to renovation costs. Heritage-sensitive materials, specialist design, and longer planning timescales all contribute to higher project costs. Our guides highlight conservation impact for each area.
Areas We Cover
Detailed cost guides for 26 areas across NW London.
What Affects Renovation Costs?
Specification Level
Budget, mid-range, and premium finishes can mean a 2–3x difference in total cost. Kitchens and bathrooms are particularly specification-sensitive.
Structural Complexity
Projects requiring steelwork, underpinning, or party wall agreements add £5,000–£30,000+ depending on scope.
Conservation & Planning
Heritage materials, specialist design consultants, and extended planning timescales typically add 10–20% to total project costs.
Access & Site Conditions
Basement access, scaffolding requirements, skip permits, and restricted working hours in residential areas all affect cost.
Professional Fees
Architect fees typically run 8–15% of construction cost. Structural engineers, party wall surveyors, and planning consultants are additional.
Market Conditions
Labour costs, material prices, and contractor availability in NW London fluctuate. Getting multiple quotes helps you benchmark.
Latest Cost Topics
Short articles on budgeting, pricing drivers, and project planning in NW London.
Architect Fees Guide for NW London Renovations
Understanding architect fees, typical costs of 8-15% of build cost, and how to budget for architectural services in Hampstead.
Basement Conversion Cost Guide for Hampstead & NW London
Indicative basement conversion and excavation costs in Hampstead and NW London. Covers cellar conversions, full excavations, light wells, and the factors driving basement costs in NW3.
Bathroom Renovation Cost Guide for NW London
Comprehensive guide to bathroom renovation costs in Hampstead, Primrose Hill and across NW London, including fixtures, labour and professional fees.
Building Regulations Costs and Compliance Guide for NW London
Understanding building regulations fees, compliance costs, and inspections required for renovations in Hampstead and NW London.
Complete Guide to Renovation Costs in Hampstead & NW London
A comprehensive guide to renovation costs in Hampstead and NW London. Indicative estimates for extensions, loft conversions, basements, and full refurbishments in the NW3 area.
Conservation Area Renovation Costs in NW London
Guide to additional costs and requirements for renovating properties in Hampstead and NW London conservation areas.
Get a cost estimate for your project
Tell us about your renovation and we'll connect you with vetted local professionals who know NW London.
Hampstead Renovation Costs is an information and matching service operated by Hampstead Renovations Ltd. We are not a building contractor.