Garage conversions in London

Covering London

Our garage conversions service in London covers Brent, Islington, Bexley and Barking and more.

Homes in London

London projects often mean working on period terraces with neighbours on both sides, tight access through the house and conservation area controls, so careful planning and party wall work matter as much as the build.

What does a garage conversion involve?

A garage conversion turns an attached, integral or detached garage into a habitable room by infilling the door opening, insulating the floor, walls and roof, and adding windows, heating and power. It is one of the quickest and cheapest ways to add a room.

Building control application
Insulated floor, walls and ceiling
Heating, electrics and data points

How much does a garage conversion cost in London?

Use these ranges to budget for garage conversions; the survey turns them into a fixed price for the agreed specification.

Garage conversions	Guide price incl. VAT
Single integral garage	£12,000 to £17,000
Single attached garage	£12,000 to £24,000
Single detached garage	£18,000 to £30,000
Double garage	£25,000 to £54,000

Planning and building rules in London

Projects in England go through two separate checks. Planning (or confirmation that the work is permitted development) comes from the district, borough or unitary council, and building regulations approval comes from the council’s building control team or a registered building control approver. Where work touches a shared wall or digs near a neighbour’s foundations, the Party Wall etc. Act 1996 applies.

An internal garage conversion is usually permitted development in England unless the house is listed, an Article 4 direction applies, or it is on an estate where the planning permission removed permitted development rights.

What can change the price or programme?

A bedroom needs an escape window or a protected route out.
Losing a parking space can matter on streets with permit parking.

What are the steps?

Tell us about the project. Call, use the guide price tool or send the form with a few photos and a postcode.
Free site visit. We measure up, look at access, drains and the structure, and talk through options and budget.
Price and paperwork. The design is priced line by line, and we submit the planning and building control applications.
Build and hand over. Our teams build to the programme, building control inspects, and you get the completion paperwork at the end.

What people ask before starting

How much does a garage conversion cost?

A single integral garage usually costs about £12,000 to £17,000 including VAT. Detached and double garages cost more.

Does it need building regulations approval?

Yes, because it becomes a habitable room.

How do I get a price for garage conversions in London?

Use the guide price tool for a ballpark figure, then book a visit for a fixed written price for the agreed specification.

Garage conversions in nearby towns

Learn more about garage conversions, or see every project we cover in London.