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Planning & Law8 min readBy New Chapter Homes

Modular Home Planning Permission vs Exemption Ireland: Which Do You Need?

Confused about whether your modular home or pod needs planning permission or qualifies for exemption? This decision tree walks you through every scenario in plain English.

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Modular Home Planning Permission vs Exemption Ireland: Which Do You Need? — Planning & Law article by New Chapter Homes Ireland

Looking for the full picture? Read our planning permission guide.

The Planning Permission vs Exemption Decision

The most common question we get: "Do I need planning permission for my modular home?" The answer depends on what you're building, where, and how you'll use it. Here's a clear decision tree.

Step 1: Is It a Separate Dwelling?

If yes — a self-contained home with its own kitchen, bathroom, and independent living — you need full planning permission. There is no exemption for a standalone second dwelling on a residential plot, regardless of size.

If no — it's an extension, garden room, or pod ancillary to the main house — go to Step 2.

Step 2: Where Is It Located?

  • Rear of the house — potentially exempt (continue to Step 3).
  • Front or side of the house — requires planning permission (visible from the road).
  • Rural/agricultural land — may require planning; depends on local area plan zoning.

Step 3: How Big Is It?

  • Up to 25m² (garden pod/room at rear) — exempt, subject to conditions.
  • 25m² to 40m² (rear extension) — exempt under the 2025 expanded rules, if combined with existing extensions the total doesn't exceed 40m².
  • Over 40m² — requires planning permission.

Step 4: How Will You Use It?

  • Domestic ancillary use (home office, gym, studio, family living) — eligible for exemption.
  • Independent dwelling (separate rental, self-contained living) — requires planning permission.
  • Short-term letting (Airbnb) — requires planning permission for tourist use, especially in Rent Pressure Zones.

Step 5: Is Your Property in a Protected Area?

  • Protected structure — all works require planning and potentially a Section 5 declaration.
  • Architectural Conservation Area (ACA) — stricter rules; planning likely required.
  • Normal residential zoning — standard exemptions apply.

Quick Reference Table

| Scenario | Permission Needed? | |---|---| | 25m² garden office at rear | No (exempt) | | 38m² garden pod at rear | Yes (over 25m²) | | 40m² rear kitchen extension | No (exempt) | | Detached granny flat with kitchen | Yes (separate dwelling) | | Pod for Airbnb in Dublin | Yes (tourist use in RPZ) | | Chapter Three compact home on rural plot | Yes (new dwelling) |

The 14-Day Notification

For certain exempt structures, you must notify your local authority 14 days before starting. This is not a planning application — it's a notification. If the council doesn't object within 14 days, you proceed. We handle this for you.

How We Help

At New Chapter Homes, our free site assessment gives you a written, definitive answer on whether your project is exempt or needs planning. If planning is required, we manage the entire application — drawings, documentation, submission, and liaison with the local authority.

Book your free site survey today.

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