Services / Garage Conversion
No planning required · Fixed price · 25yr warranty

Garage Conversion in London

Convert your unused garage into a bedroom, home office, playroom, utility room or additional living space. Garage conversions are one of the most cost-effective ways to add usable floor area to your home — typically without planning permission.

✓ Usually no planning required✓ Building Regulations approved✓ Fixed-price guarantee✓ Checkatrade-verified✓ 25-year structural warranty

Why a garage conversion makes sense

The average integral garage in London sits unused for years while families struggle for space. Converting it to a habitable room costs a fraction of an extension — because the structure is already there. You are adding insulation, a new floor, internal lining, windows, M&E connections, and a door from the house. That's it.

~£15k–£30k
Typical cost

Depending on size, specification, and any structural changes required.

4–6 weeks
Typical programme

From mobilisation to completion on a standard integral garage conversion.

No planning
Usually permitted development

Integral garage conversions are typically PD — no planning application needed.

What a garage conversion typically includes

Insulation: floor, walls, and ceiling to Building Regulation standard
New concrete floor screed or raised insulated floor system
Internal wall lining — stud or masonry
New window openings — sized and positioned for light and ventilation
Garage door removal and new external wall / door / window combination
Connection to existing heating system — new radiator
Electrical — new sockets, lighting, consumer unit extension
Internal door from house — creating the habitable connection
Plastering, skirting, and decoration
Flooring to client specification (client-supplied or procured)
Building Regulations application and inspection management
Completion certificate issued

Note: all second-fix materials (flooring, light fittings, sanitary ware if adding WC) are client-supplied unless otherwise agreed.

Popular garage conversion uses

Ground floor bedroom

Ideal for elderly relatives, accessibility requirements, or simply creating an additional bedroom without a loft conversion. A ground floor double bedroom with en-suite is fully achievable in most single garages.

Home office

A dedicated, separate home office with proper insulation, power, internet connection, and natural light is one of the most popular post-pandemic garage conversion uses. More effective than working from a spare room.

Playroom / hobby room

A converted garage makes an excellent playroom or hobby space — kept separate from the main living areas, with its own access, easy-clean flooring and good storage.

Utility / boot room extension

Connecting the garage to the kitchen to create a utility room, boot room, larder or laundry space. Often combined with a structural opening into the house.

Gym or wellness room

A home gym requires proper flooring, good ventilation, and adequate power provision. A converted garage is the most practical solution — separate from the main house, robust enough for equipment.

Annexe or additional living space

With the addition of a bathroom and kitchenette, a detached or large integral garage can become a self-contained annexe — subject to planning for change of use in some cases.

Planning permission for garage conversions

Converting an integral garage (attached to the house) to habitable use is typically permitted development — no planning application required. However, planning permission may be needed if: your property is in a conservation area; the conversion changes the external appearance significantly; you are in an area where the original permitted development right has been removed. We check planning status before every project.

Ready to convert your garage?

Free survey. Fixed price. 4–6 week programme. Building Regulations managed. No planning application in most cases.

Or call 07359 872594