Garage conversions in County Antrim

Covering County Antrim

We cover County Antrim, including Belfast, Lisburn, Newtownabbey and Carrickfergus, and the towns around them.

Homes in County Antrim

Northern Ireland has a high proportion of detached houses and bungalows outside the cities, which often suit side extensions, rear extensions and upward extensions.

What do you get with a garage conversion?

Most integral garages already have the walls and roof; what they need is a new insulated floor, an infilled front wall with a window, and heating. We check whether your permitted development rights are intact, handle building control and finish the room ready to use.

Insulated floor, walls and ceiling
Heating, electrics and data points
Plastering, skirting and decoration-ready finish

How much should I budget for a garage conversion?

Guide prices for garage conversions, including VAT where it applies. Your fixed price is confirmed in writing after the survey.

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 County Antrim?

In Northern Ireland the council handles both planning and building control. Permitted development rules are set by the Planning (General Permitted Development) Order (Northern Ireland) 2015, and there is no party wall act, so we agree access and protection with neighbours in writing.

In Northern Ireland, garage conversions often do not need planning permission if the external changes are minor; building control approval is needed.

What should I think about before starting?

The garage floor is often lower than the house and needs raising.
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.
We visit and measure. A surveyor checks the house, the boundaries and the ground, and discusses what is realistic.
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.

Your questions answered

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.

Do you work in County Antrim?

Yes. County Antrim is within our coverage for garage conversions, along with nearby Belfast and Lisburn.

Also covering

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