Garage conversions in New Malden

Covering New Malden

Our coverage around New Malden (KT3) also includes Surbiton, Morden and Wimbledon.

Homes in London

Terraced houses dominate many London neighbourhoods, so most projects involve shared walls, narrow access and a party wall process. Conservation areas are widespread, and some boroughs have their own mansard and basement guidance.

What is included in a garage conversion in New Malden?

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.

Planning check (some estates remove permitted development rights)
Building control application
Garage door removal and brick infill with window

How much does a garage conversion cost in New Malden?

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

How is a garage conversion approved in New Malden?

English projects need planning clearance from the local council, building regulations sign-off from building control, and party wall notices where the work is on or near a shared boundary. We prepare and manage all three.

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. We check the original permission for your house.

What should I think about before starting?

Some new-build estates have a planning condition keeping garages for parking.
The garage floor is often lower than the house and needs raising.

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.
Survey at your house. We look at the existing structure, services and access, and agree what the design needs to achieve.
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.

Questions about a garage conversion in New Malden

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.

Can a garage become a bedroom?

Yes, with insulation, ventilation and an escape window or protected route out.

Who deals with the council for a project in New Malden?

We do. We prepare the drawings, submit planning or permitted development paperwork if needed, and arrange building control inspections.

Also covering

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