Garage conversions in Sutton

Covering Sutton

We work in Sutton (CR44, SM1, SM2) and the places around it, including Carshalton, Banstead and Ewell.

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
Plastering, skirting and decoration-ready finish

How much does a garage conversion cost in Sutton?

Indicative costs for garage conversions. London and the South East usually sit towards the top of each range.

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

What approvals does a garage conversion need in England?

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 should I think about before starting?

Some new-build estates have a planning condition keeping garages for parking.
Losing a parking space can matter on streets with permit parking.

What are the steps?

Start with a conversation. A short call or the online form is enough for us to understand what you want to build.
Free site visit. We measure up, look at access, drains and the structure, and talk through options and budget.
Design and fixed price. You get drawings and a written price for the agreed specification before anything is ordered.
Construction and completion. One site lead co-ordinates every trade through to the building control certificate.

Questions about a garage conversion in Sutton

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.

Do you work in Sutton?

Yes. Sutton is within our coverage for garage conversions, along with nearby Carshalton and Banstead.

Garage conversions in nearby towns

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