Bath ยท Garage Conversion

Garage Conversion
in Bath

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How Much Do Garage Conversion Cost in Bath?

Real prices from completed projects in Bath and the surrounding area. Costs vary by size, specification and access โ€” use these as a starting guide, then get 3 free quotes for your specific project.

Full cost guide โ†’
Single garage conversion
Standard Single Garage Conversion
£ 7,600 โ€“ £17,100

Convert an attached single garage into a habitable room โ€” bedroom, office or playroom. Most fall under permitted development. 6โ€“10 weeks on site.

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Double garage conversion
Full Double Garage Conversion
£ 14,250 โ€“ £28,500

Convert a double garage into a self-contained living space, en-suite annexe or large open-plan room. Strong ROI for ยฃ15kโ€“ยฃ30k.

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Detached garage conversion
Detached Garage Conversion
£ 17,100 โ€“ £33,250

Convert a detached or outbuilding garage into an annexe, home office or studio. May require planning permission depending on use.

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Your Project
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Costs depend on size, spec and access. The best way to know your exact price is to compare 3 quotes from local specialists.

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Bath pricing note: South West England (Bristol, Devon, Cornwall) varies significantly by location. Bristol prices sit near the national average; rural Devon and Cornwall can run 5โ€“10% higher due to contractor travel costs and limited local trade availability. Prices shown are indicative ranges for Bath and South West. Always get at least 3 written quotes before committing to any builder.

Garage Conversion Specialists Who Know Bath

Tell us about your garage conversion project once and up to three local specialists who cover Bath get in touch with quotes — free, with no obligation, and you choose who to hire.

Coverage for Bath extends into the neighbouring towns of Camborne, Wadebridge and Swindon, giving you a broader set of South West trades to compare than a single-town search would return. Bath falls in the BA postcode area, covering roughly 83,800 households.

Where does Bath sit on cost? South West England (Bristol, Devon, Cornwall) varies significantly by location. Bristol prices sit near the national average; rural Devon and Cornwall can run 5โ€“10% higher due to contractor travel costs and limited local trade availability. Use that as your baseline, then compare three itemised quotes for the actual job.

Local facts: Bath

  • Local planning authority: Bath and North East Somerset Council
  • Region: South West
  • Town-centre postcode district: BA2
  • Average house price (Bath and North East Somerset local authority, June 2026): £404,480 (-0.1% year on year) — detached £705,147, semi-detached £440,465, terraced £384,310, flats £238,214

Planning-authority, region and postcode data: ONS Postcode Directory (Open Government Licence). House prices: HM Land Registry UK House Price Index for the local authority (OGL). Member coverage is each member's own registered base and travel radius.

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Garage Conversion in Bath โ€” FAQs

A single garage conversion in Bath typically costs ยฃ8,000 to ยฃ20,000 depending on insulation, the new floor, windows and whether plumbing is added. It is one of the cheapest ways to add a room.
Converting an attached garage within the existing walls in Bath is usually permitted development and needs no application. Planning permission may be needed in conservation areas, on some new-build estates with restrictions, or if you change the external appearance.
Most garage conversions in Bath take 2 to 4 weeks, depending on insulation, new openings and any plumbing or electrical work. It is far quicker than a built extension.
Yes. A garage conversion in Bath needs building regulations approval covering insulation, damp proofing, ventilation and structure, even when planning permission is not required. Your builder arranges building control sign-off.
A well-finished garage conversion can add around 10 to 15 percent to the value of a Bath home, provided off-street parking is not essential to local buyers. A habitable room usually adds more value than an underused garage.

Plan Your garage conversion Project in Bath

Whether you're researching costs, checking planning rules, or comparing approaches before you commit, our editorial team has produced these guides to help Bath homeowners make informed decisions about their garage conversion project.

Garage Conversion Cost Guide

Detailed UK price ranges, regional adjustments and worked examples for garage conversion projects.

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All Garage Conversion Specialists

Browse our nationwide network of local garage conversion contractors covering all 519 UK towns.

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All Cost Guides

Compare prices across extensions, lofts, kitchens, bathrooms, roofing, driveways and solar projects.

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Planning your garage conversion project? Read these guides:

Garage Conversion Near Bath

We also connect homeowners with local garage conversion specialists in towns surrounding Bath.

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Planning Your Garage Conversion in Bath

Before you compare quotes, it's worth understanding the full UK price picture for garage conversion and how Bath sits within it. The guides below cover average costs, what affects your quote, and how to choose a builder you can trust.

UK Garage Conversion Cost Guide

Full price ranges, worked examples and the factors that move your quote โ€” drawn from real project data across 519 UK towns.

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Garage Conversion Across the UK

Browse garage conversion services nationwide, see what's typical in your region, and request quotes from any UK location.

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Planning Permission for Garage Conversion in Bath

Find out whether your garage conversion needs planning permission in Bath, what Permitted Development limits apply, and how rules differ in conservation areas, Article 4 zones, and listed-building settings.

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More homeowner resources: all UK building guides, cost guides, planning permission, comparisons, how-to guides and industry insights.

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Tell us about your project and we'll match you with 3 local garage conversion specialists in Bath. Free, no-obligation, no spam โ€” results in 24 hours.

๐Ÿ›๏ธPlanning permission for Garage Conversion in Bath?Check whether your project needs permission before you start — read our 2026 planning guide →
๐Ÿ’ฌ Not sure about something? Ask a building expert
Planning permission, costs, building regs, choosing a trade โ€” free answers from our editorial team, published for other homeowners too.
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