What is a garage conversion?

A garage conversion turns an integral or attached garage into habitable space, such as a study, playroom, bedroom or utility. The garage door is replaced with a wall and window, the floor is raised and insulated, and the walls and roof are brought up to building regulations.
How much does a garage conversion cost in Bangor, County Down?
In Bangor, a garage conversion typically costs £15,500–£26,000 for a single integral garage, including VAT at 20% (standard rate). The guide for Bangor reflects typical costs in Northern Ireland, roughly 14% below the UK-wide figure. Design, structural calculations and council fees are extra.
| Size or type | Guide range |
|---|---|
| A single integral garage | £15,500–£26,000 |
| Higher specification | £26,000–£32,500 |
The main things that change the cost:
- Single or double garage
- Heating and flooring
- Whether planning permission is needed
- Foundations under the old door opening
For a figure based on your own measurements, try the guide price tool, then book a free home visit for a fixed quote.
Do you need planning permission for a garage conversion in Bangor, County Down?
Whether you need planning permission depends on your house and its location in Northern Ireland. In Northern Ireland a garage conversion usually does not need planning permission if permitted development rights apply, but building control approval is needed.
Northern Ireland has no Party Wall Act. Work on shared walls relies on agreement with the neighbour and common law, so we agree the arrangements in writing before work starts.
At the survey we check your house’s planning history and any restrictions, and tell you which route applies.
What we handle
From survey to sign-off, the job normally involves:
- Wall and ceiling insulation
- New wall and window to replace the garage door
- Floor raised with insulation and damp-proof membrane
- Planning check for removed permitted development rights
- Building control completion
- Electrics, heating and plastering
How long does it take?
The build itself usually takes 3 to 6 weeks on site. Design and approvals come first and typically take 6 to 12 weeks, depending on the approval route.
Building in Bangor, County Down
Across Northern Ireland, bungalows and chalet bungalows are common, so loft conversions and rear extensions are popular projects.
We work across Bangor and neighbouring areas such as Newtownards, Carrickfergus and Newtownabbey. Postcodes we cover in Bangor include BT19 and BT20.
How it works
- 01
Free visit
We look at the property, talk through what you want and measure up. There is no charge and no obligation.
- 02
Design and pricing
Design options, then a fixed quote based on the chosen drawings and specification.
- 03
Approvals
Planning or permitted development confirmation, building regulations and any party wall matters.
- 04
Construction and completion
We build, put right any snags and hand over the building control certificate.
Questions about garage conversions in Bangor, County Down
How much does a garage conversion cost in Bangor?
In Bangor, a garage conversion typically costs £15,500–£26,000 for a single integral garage, including VAT at 20% (standard rate). Your fixed price depends on the survey and drawings.
Can the floor be level with the house?
Yes. The garage floor is raised and insulated to match the house floor level.
How long does it take?
Typically 3 to 6 weeks on site.
Do you build garage conversions in Bangor?
Yes. We build garage conversions across Bangor, including postcodes BT19 and BT20. Every project starts with a free home visit.
Do I need planning permission for a garage conversion in Bangor?
In Northern Ireland a garage conversion usually does not need planning permission if permitted development rights apply, but building control approval is needed.
Can a detached garage be converted?
Yes, but using it as separate living accommodation may need planning permission.
