Collegeland, Rathcoole, Co. Dublin.

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• An Bord Pleanála appeal, now An Coimisiún Pleanála — four weeks, €220, and a 25% reversal rateThe Commission reversed the council in 25% of the 1,195 Dublin-area appeals decided in the two years to September 2026. Who can appeal, the four weeks, the €220 fee, why 240 appeals a year fail on procedure, and the odds by direction.
• The most refused planning application types in Dublin — retention first, apartments second, extensions lastRetention applications were refused 27% of the time across the Greater Dublin councils in 12 months (140 of 510 decided), apartments 20%, new houses 15% and extensions 7%. The refusal share by development type, why the mix matters more than the council, and what the register says about where each type fails.
• Appeals overturned by council — how often An Coimisiún Pleanála reverses each Dublin council, and in which directionThe Commission reversed the council on 301 of 1,195 Dublin appeals decided in 24 months, 25%. South Dublin was reversed most (30%), Dublin City least (23%), and 76 of Fingal's 85 reversals turned a refusal into a grant. How the appeal works, what a reversal rate means, and how to read your council's number before you appeal.
• Flood maps when buying a house — what floodinfo.ie shows, flood zones A, B and C, and why we only flagWe hold 27,460 CFRAM flood-extent features for the four Dublin councils, and 36 applications decided in 12 months mentioned flood risk in their description. What the OPW's floodinfo.ie maps mean, how flood zones A, B and C govern planning, what insurers use, and what a buyer should check.