Garage Conversion — fixed prices
A single garage converted into a habitable room: floor raised and insulated, walls lined, door opening infilled, plus electrics, heating and finishing. Building regulations approval is included in the fixed price.
Typical UK fixed cost £14500
Fixed prices for garage conversion
No company has published a fixed price for this job yet.
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List your fixed priceWhat's usually included
- Infill of the garage door opening with a new window or wall
- Insulated floor build-up, wall lining and ceiling
- Electrics, sockets, lighting and radiator
- Plastering and decoration to a finished shell
- Building regulations application and sign-off
About building & renovation on Fixed Costs
Builders publishing fixed prices for clearly defined jobs — knock-throughs, garage conversions, patios and extensions.
See all building & renovation fixed pricesRelated fixed-price jobs
Garage Conversion — your questions answered
- How long does a garage conversion take?
- Typically four to six weeks for a single garage from start to sign-off.
- Do I need planning permission for a garage conversion?
- Usually not if the work is internal and the property is not listed or subject to a planning condition requiring parking. Building regulations always apply.
- Does a garage conversion add value?
- It usually adds more value than it costs, especially where it creates a fourth bedroom or a home office, provided off-street parking remains.
- Will the floor be damp?
- Garage slabs often lack a damp proof membrane, so a compliant conversion builds in a new DPM and insulation — a key reason to use a builder who includes building regs.