Planning Permission Is No Longer Required for Some Back-Garden Granny Flat & Modular Structures | But There Are Important Rules You Should Know.
From late July 2026, certain detached habitable accommodation, including back-garden modular structures and granny flats, can now be built without planning permission, provided they meet a range of strict conditions. The Irish Times. These changes are part of wider planning regulation reforms introduced by the Department of Housing and hope to give homeowners greater flexibility.