118 Castleknock Park, Castleknock, Dublin 15

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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.
• Planning enforcement in Ireland — 7,396 cases a year, the warning letter and the seven-year ruleCouncils opened 7,396 planning enforcement cases in 2024. What unauthorised development is, how a complaint becomes a s.152 warning letter and a s.154 notice, what the seven-year rule does and does not do, and how to report or answer one.
• Certificate of compliance with planning permission in Ireland17% of GDA planning applications are retention. Who can sign a certificate of compliance with planning permission, what the RIAI / Law Society opinion covers, the gaps it leaves.