House Extension
in Nelson
Compare quotes from vetted Nelson extension builders for single-storey, double-storey and rear extensions. Transparent pricing from £15,000. Free, no-obligation quotes — results in 24 hours.
- Vetted, insured house extension specialists in Nelson
- Up to 3 free quotes — compare and choose with no pressure
- Transparent pricing, no hidden costs or surprise charges
- Work guaranteed, fully insured, trade-qualified contractors
How Much Do House Extension Cost in Nelson?
Real prices from completed projects in Nelson and the surrounding area. Costs vary by size, specification and access — use these as a starting guide, then get 3 free quotes for your specific project.
The most popular choice for UK terraces and semis. Adds a kitchen-diner or extra living space at ground level. Typically 3–5m deep, completed in 10–14 weeks.
Get quotes for this →Maximum space gain in a single build — adds a ground-floor room and a bedroom above. Strong ROI in most UK property markets. Requires full planning permission.
Get quotes for this →Ideal for terraced homes with a narrow side alley. Transforms a cramped kitchen into a full-width open-plan space. Often combined with a rear extension.
Get quotes for this →Costs depend on size, spec and access. The best way to know your exact price is to compare 3 quotes from vetted local specialists.
Get free quotes →Nelson pricing note: North West England (Manchester, Liverpool, Lancashire) prices sit around 5% below the national average. Strong contractor availability keeps competition healthy and quotes competitive, particularly outside peak summer season. Prices shown are indicative ranges for Nelson and North West. Always get at least 3 written quotes before committing to any builder.
House Extension Specialists Who Know Nelson
Nelson is one of the UK's most active home renovation markets. With a diverse range of properties across the area, from period homes to modern new builds, local builders need to be versatile, skilled, and reliable.
BestBuilders vets every builder in our Nelson network. We check for public liability insurance, relevant trade qualifications (CIOB, FMB, Gas Safe, NICEIC), and a minimum of five verified customer reviews before any builder can appear on our platform.
Whether you are planning a rear extension, a loft conversion, or a full kitchen renovation in Nelson, we will connect you with the right specialist within 24 hours. All quotes are free and there is no obligation to proceed.
Start My Free Quote →How It Works
Every Builder We Recommend Is:
What Nelson Homeowners Say About Our House Extension Specialists
Hip-end side extension on our mid-terrace in Nelson. 24m² rear with structural opening through to the existing kitchen and a steel beam above. Total £68800, 14 weeks end to end. Building control sign-off on the first inspection.
Compared four extension builders through BestBuilders for the Nelson job. Picked the firm whose CAD drawings showed every junction in 3D before signing. Structural engineer report and party wall award all coordinated through one contact. £120180 over 18 working weeks, no surprise extras. Lived in throughout - dust kept to the construction zone, never the rest of the house.
A summer and a winter on, the new space holds temperature without the boiler kicking in. Builder we found via BestBuilders in Nelson pushed back on our paving choice and saved us £2k on something more durable. Total £59040. Estate agent valued the work at +£90k.
House Extension in Nelson — FAQs
Plan Your house extension Project in Nelson
Whether you're researching costs, checking planning rules, or comparing approaches before you commit, our editorial team has produced these guides to help Nelson homeowners make informed decisions about their house extension project.
House Extension Cost Guide
Detailed UK price ranges, regional adjustments and worked examples for house extension projects.
Read House Extension Cost Guide →All House Extension Specialists
Browse our nationwide network of vetted house extension contractors covering all 519 UK towns.
Browse House Extension Specialists →All Cost Guides
Compare prices across extensions, lofts, kitchens, bathrooms, roofing, driveways and solar projects.
View All Cost Guides →Planning your house extension project? Read these guides:
Planning Your House Extension in Nelson
Before you compare quotes, it's worth understanding the full UK price picture for house extension and how Nelson sits within it. The guides below cover average costs, what affects your quote, and how to choose a builder you can trust.
UK House Extension Cost Guide
Full price ranges, worked examples and the factors that move your quote — drawn from real project data across 519 UK towns.
Read the house extension cost guide →House Extension Across the UK
Browse house extension services nationwide, see what's typical in your region, and request quotes from any UK location.
Visit the UK house extension hub →Planning Permission for House Extension in Nelson
Find out whether your house extension needs planning permission in Nelson, what Permitted Development limits apply, and how rules differ in conservation areas, Article 4 zones, and listed-building settings.
Read the house extension planning rules →More homeowner resources: all UK building guides, cost guides, planning permission, comparisons, how-to guides and industry insights.