Garage conversion guides
A garage conversion in Ireland costs €15,000 to €25,000 at a standard finish, €20,000 to €30,000 mid-range and €30,000 to €45,000 at a high spec, VAT included. Dublin and the commuter counties run up to a fifth higher. A shower room adds €4,000 to €8,000 at a basic finish or €10,000 to €18,000 mid-range, and opening it into the house with a steel beam €2,000 to €4,000.
Every cost guide, conversion, planning rule and county page in one place.
Free and no obligation. Your plan goes to one builder, not a list.
- €15,000–€25,000standard conversion
- 45 m²Class 1 limit
- 7conversion guides
- 26counties covered
What a garage can become
Each has its own page: what it costs, the rules that apply to that room, and what to decide first.
Garage to bedroomA downstairs bedroom, with a shower room of its own if the drains allow.
Garage to home officeA room with a door that shuts, away from the kitchen table.
Garage to playroomSomewhere for the children and their things, off the hall.
Garage to granny flatA bedroom, a shower room and a small kitchen for a parent.
Garage to gymA warm, dry room with a floor that takes weights.
Integral and front garagesBuilt into the house or facing the road: check before you start.Plan your garage conversion
Four quick taps, and your plan fills in as you answer: the cost in your county, the planning position for your kind of garage and how many weeks it takes. Contact details come last, and only if you want a builder to price it.
An attached garage made into a bedroom, mid-range finish: €20,000 to €30,000, including VAT.
How the estimate is worked out
A garage conversion is priced as one job, because the walls, roof and floor slab are already standing: insulating the floor, walls and roof, building up the door opening with a window, wiring, heating, plastering and the finish. The range for your finish is adjusted to your county the same way building rates move between regions of Ireland, VAT at 13.5% included. A shower room, a small kitchen or a steel beam into the house go on top. Totals are rounded to the nearest €1,000. Use it to plan with. It isn't a quote: a builder prices your garage after seeing it.
Common questions
How much does a garage conversion cost in Ireland?
A garage conversion in Ireland costs €15,000 to €25,000 at a standard finish, €20,000 to €30,000 mid-range and €30,000 to €45,000 at a high spec, VAT included. Dublin and the commuter counties run up to a fifth higher. A shower room adds €4,000 to €8,000 at a basic finish or €10,000 to €18,000 mid-range, and opening it into the house with a steel beam €2,000 to €4,000.
How much is a garage conversion with an en-suite?
About €30,000 to €48,000 mid-range at national prices, the conversion plus a shower room fit-out.
Do I need planning permission to convert my garage?
An attached garage at the side or back of the house can be converted without planning permission under Class 1, as long as the garage isn't made bigger and the conversion, added to every extension built since 1 October 1964, stays within 45 m². A garage at the front, one built into the house facing the road, or a detached garage isn't covered by Class 1: get a section 5 declaration (€80) from the council first, and expect to apply for permission to make a detached garage somewhere to sleep or live.
Is an integral garage conversion exempt?
Not clearly. Class 1 names garages at the side or rear. Ask the council for a section 5 declaration (€80).
Every guide and county page
Conversions
Costs, rules and help
The room you need is already built
Pick the kind of garage, what it becomes and the finish to see the cost in your county. When you want a firm price, your plan goes to a single vetted builder for your area.