60 Rothe Abbey, Kilmainham, Dublin 8

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• Porch and garage conversion planning permission — 99% of garage conversions grantedDublin councils granted 87 of 88 garage-conversion applications and 95% of porch applications in the 12 months to September 2026. The 2 m² porch limit, the parking condition, and when neither needs an application.
• Planning permission for an extension in Ireland — the 45 m² exemption and a 94% grant rateDublin councils granted 94% of extension applications decided in the year to September 2026. Since 27 July 2026 a rear extension of up to 45 m² can be exempt. The conditions, when you still apply, the fee and the timeline.
• 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.