Garage Conversion Specialists UK · Free, Vetted Builders
Add 12–35 m² of habitable space without extending the footprint of your home. Get free quotes from FMB & CIOB-qualified garage conversion specialists in your town. Most projects finish in 6–10 weeks and stay under permitted development.
Every Type of Garage Conversion
From a simple single-garage habitable room to a fully-fitted detached garage annexe — vetted local specialists for every project type.
Convert an attached single garage into a bedroom, office, playroom or utility. 12–18 m². Most fall under permitted development.
Get quotes →Open-plan living space, en-suite annexe or large family room. 25–35 m². Fits a kitchenette and bathroom comfortably.
Get quotes →Annexe, home office, gym or studio. May require planning permission depending on use class. 18–35 m².
Get quotes →Why Convert Instead of Extend?
📉 Lowest £/m² of any extension
Garage conversions typically cost £900–£1,800/m² versus £2,000–£3,000/m² for a new-build extension. The shell already exists.
⏱ Fast — 6–10 weeks on site
No groundworks, no roof structure, no major brickwork. Most projects finish inside 8 weeks once builders are on site.
�� Often under PD rights
Most attached garage conversions don't need planning permission — they only need building regs approval. Faster start, lower fees.
💰 Strong ROI
In 2026 UK markets, a quality garage conversion typically returns £1.20–£1.50 for every £1 spent — particularly when adding a bedroom or en-suite annexe.
🏠 Stay in your home
Unlike a full extension, a garage conversion barely disrupts the rest of the house. Most homeowners stay put through the entire build.
🛠 Simpler structural work
Existing walls and roof reduce the structural work to insulation, damp-proofing, electrical and finishing — work most builders can complete with their own team.
3 Steps to a Vetted Garage Conversion Specialist
Tell us about your project
60-second form. Tell us your postcode, garage type and what you're converting it into. No phone, no jargon.
Get matched to specialists
We match you to up to 3 vetted local garage conversion specialists. All FMB or CIOB-qualified, all reviewed.
Compare quotes & choose
Receive itemised quotes within 24 hours. Compare on like-for-like spec — no obligation to choose any.
Get Accurate Quotes for Your Garage Conversion
Online guides give you a benchmark — accurate pricing requires a builder who has seen your garage and plans. BestBuilders matches you with up to 3 vetted local specialists for free.
Garage Conversion FAQs
Garage Conversion Specialists by Town
Vetted specialists across 519 UK towns. Find your local garage conversion experts: