Modular Homes and Ireland's Housing Crisis: Can Back-Garden Builds Help?
With Ireland's housing crisis showing no sign of easing, could the new back-garden modular home exemption unlock thousands of new homes? We look at the numbers and the potential.

Looking for the full picture? Read our complete guide to modular homes in Ireland.
A Crisis Without Easy Answers
Ireland's housing crisis is well-documented. Supply has fallen short of demand for over a decade. Prices and rents continue to rise. Young people are leaving the country, or living with parents well into their thirties. Traditional construction alone has not been able to close the gap.
Into this context, the Irish Government has introduced the new exempted development regulations — and the potential is significant.
The Numbers
Think tank Progress Ireland has estimated that a "seomraí" (or granny flat) policy — allowing modular homes in back gardens — could unlock up to 350,000 small homes across the country.
That's not a projection for new developments on greenfield sites. That's existing gardens, in existing communities, with existing infrastructure — water, electricity, roads, schools, and shops already in place.
Even if a fraction of that potential is realised, the impact on housing supply could be transformative.
Why Modular Is Part of the Solution
Modular construction offers several advantages that make it ideally suited to addressing the housing crisis:
Speed
Modular builds can be completed 30–50% faster than traditional construction. A New Chapter home is factory-built and installed on-site in a matter of weeks, not months. This means more homes, delivered more quickly.
Cost Certainty
Factory-controlled construction means fixed specifications, fixed timelines, and far fewer on-site surprises. Homeowners know the price before work begins.
Quality
Built in a controlled factory environment, modular homes are not subject to weather delays or on-site construction variability. Every unit meets the same standard of finish, insulation, and structural integrity.
Sustainability
Modular construction generates less waste, uses materials more efficiently, and — because our homes meet NZEB standards — produces far lower carbon emissions over the building's lifetime.
The Back-Garden Opportunity
The genius of the back-garden approach is that it doesn't require new land. It uses the most underutilised resource in Irish housing: the suburban back garden.
For families with adult children who can't afford to rent, for elderly parents who want to downsize but stay close to family, for homeowners who want to generate rental income under the Rent-a-Room scheme — a modular home in the back garden is a practical, fast, and relatively affordable solution.
The Challenges
It's not a silver bullet. Concerns remain:
- Tenant protections for rental units need to be clear
- Building standards must be enforced — the exemption from planning must not mean exemption from quality
- Neighbour impacts — overlooking, density, parking — need careful management
- Infrastructure — some areas may not have the water or drainage capacity for additional dwellings
Our Role
At New Chapter Homes, we see ourselves as part of the solution. We build homes that are:
- Fully Building Regulations compliant — every unit, every time
- Fast to deliver — weeks, not months
- Beautifully designed — not just functional, but genuinely desirable places to live
- Energy-efficient — NZEB-compliant, BER A2 or better
We believe the back-garden exemption, done right, can make a real difference to Ireland's housing supply — without compromising on quality, safety, or community.
Note: The exemption rules described here are in force from 27 July 2026 under S.I. No. 340 of 2026. Always verify the current position with your local planning authority before proceeding, as conditions apply and individual circumstances vary. See our Planning Permission Ireland: The Complete 2026 Guide for the latest information.
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