Since 27 July 2026, a permanent detached home of 32 to 45 m² in the back garden of your own home can be built without planning permission (Class 3A). You notify the council at least 14 days before starting, and works must finish by 31 December 2030. It cannot be sold separately or let short-term.[1][2]
Coming soon
Contentar is coming to Ireland
Contentar shows what a shipping container home really costs before you commit: a cost calculator with VAT, floor plans checked against the building rules, the permit process and a step-by-step guide.
It is live for Portugal and Spain. We are now preparing the version for Ireland: rules, costs and suppliers.
Notify me when it opensWhat we already know about Ireland
Fire safety, energy and accessibility rules apply even without planning permission. Technical fees to comply are around €4,000 to €5,000.[3]
A 20 ft unit from €34,950 and a one-bedroom 40 ft home from €69,950, at one Irish builder (2026).[4]
National median price of a home sold in 2025.[5]
A summary of our research, October 2026. Rules change and can vary by region or municipality: check with your local authority before you buy or build.
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Already live
See how it works today, with the rules and costs of Portugal and Spain: