Irish property folklore has one planning rule everyone knows: after seven years they can’t touch you. The law’s version is narrower, and the gap between folklore and law is exactly where owners get hurt: the rule bars enforcement proceedings; it grants nothing.
What the Shield Covers
The genuine protection: as a general rule, enforcement action in respect of unauthorised development becomes statute-barred seven years after the breach — the authority’s window to issue proceedings closes, and for many older domestic breaches (the extension from the nineties, the long-standing garage) that protection is real and worth having. The edges deserve equal billing: conditions attached to a permission carry their own timing rules; unauthorised uses raise continuing-breach questions where the analysis differs from a once-built structure; and one class stands outside the comfort altogether — development that required environmental assessment lives in a different world, where the passage of time buys nothing like the folklore promises, and where even retention cannot follow. Mapping which world your works are in is the first move; standing behind the shield unmapped is the gamble.
Where It Bites Anyway: the Sale
The rule’s biggest hole isn’t in enforcement at all — it’s in conveyancing: the development remains unauthorised, and unauthorised status surfaces precisely when you can least negotiate around it: on sale, when the purchaser’s solicitor requisitions planning compliance for every structure on the folio and the seven-year answer — true as it is — is not the compliance answer banks and cautious purchasers want, converting the old extension into a price chip, a delayed closing, or a collapsed contract; on refinance, for the same reasons; and in valuations that discount what paperwork can’t support. Which reframes the whole rule: the shield answers “can the council come after me?” while the question that eventually arrives is “can I prove this property’s planning status to a stranger’s solicitor?” — and for that, the cures are the real answers: the Section 5 declaration where the works were exempt all along, retention where it’s realistic, and the honest file where neither fits. The full sale-day picture lives in the conveyancing guide.
The practical rule to replace the folklore: seven years answers the enforcement question, never the status question — and the status question is the one your sale will ask. If the property carries old works, map them now, at leisure, rather than mid-contract, at speed.
Old works on the folio? Mapped before the market asks: 01 5827148.