Garage conversions in West Sussex

Covering West Sussex

Our coverage across West Sussex includes Crawley, Worthing, Bognor Regis and Littlehampton.

Homes in the South East

Many South East homes are inter-war or post-war semis and detached houses with room for rear and side extensions, while historic town centres and villages bring conservation area and listed building controls.

What is a garage conversion?

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.

Garage door removal and brick infill with window
Heating, electrics and data points
Plastering, skirting and decoration-ready finish

How much should I budget for a garage conversion?

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

How is a garage conversion approved in West Sussex?

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 affect a garage conversion?

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

What happens after I enquire?

Start with a conversation. A short call or the online form is enough for us to understand what you want to build.
Survey at your house. We look at the existing structure, services and access, and agree what the design needs to achieve.
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 West Sussex

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.

Can you visit a house in West Sussex to quote?

Yes. After a short call we arrange a site visit to measure up and agree what the design needs to do, then send a written price.

Other towns nearby

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