Planning & Environmental Judicial Review

Eight-week limits, a brand-new statutory regime, and two sets of rules running at once. This is the area where getting the framework right is half the case.

Planning judicial review is how neighbours, residents and communities challenge development consents — and how developers challenge refusals and conditions. It has always been the most procedurally demanding corner of judicial review; since the Planning and Development Act 2024’s judicial review provisions commenced on 1 August 2025, it is also the most changed. Ireland currently operates two planning JR regimes in parallel, and knowing which one governs your decision is the first, decisive question.

Judicial review time limits are strict, are sometimes much shorter than three months, and can run from an earlier date than you expect. The courts can refuse late applications even within the stated period if you have not acted promptly. Nothing on this page calculates your deadline. If you believe a decision affecting you may be unlawful, contact a solicitor immediately.

The Dual Regime, In One Table of Words

Decisions under the 2000 Act are challenged under sections 50 and 50A: judicial review only, within 8 weeks, with leave granted only on substantial grounds, and section 50B costs protection in environmental matters. Decisions under the 2024 Act are challenged under Part 9 of that Act (Chapter 1 in operation since 1 August 2025): no leave stage — instead respondents may apply to strike out weak cases; tightened standing (materially affected, or a participant in the process); grounds locked to the statement of grounds with only limited amendment; express powers to remit rather than quash entirely; and a statutory duty of expedition. A new costs framework, including a scale of fees made under 2026 regulations, is being phased in. Full plain-English treatment: the 2024 Act judicial review changes.

Challenges We Act In

  • Grants of permission challenged by neighbours and residents: environmental assessment failures (EIA/AA screening), material contravention of the development plan, defective public notice, reasons that do not engage with objections;
  • Refusals and conditions challenged by applicants and landowners where the decision misapplied the law or ignored the evidence;
  • Decisions of An Coimisiún Pleanála (formerly An Bord Pleanála) on appeals and strategic developments;
  • Enforcement and procedural decisions of planning authorities affecting property rights;
  • Environmental consents where EU-law-driven assessment obligations were not met.

Two Practical Rules for Anyone Watching a Development

First: participate. Under the 2024 Act, having made a submission in the planning process is one of the routes to standing — silence during the process can cost you the right to challenge afterwards. Second: move within days of the decision. An 8-week limit sounds like time; assembling the file, the grounds and counsel’s opinion consumes it fast, and courts refuse late applications. If a decision issued and you are considering a challenge, the consultation should happen this week, not next month. See also how costs work and challenging a planning permission.

A Planning Decision Just Issued?

Eight weeks disappears quickly. Send us the decision this week and we will identify the regime, the limit and the arguable grounds.

Call 01 5827148

Related Reading

Planning Judicial Review - FAQs

Very little. Under the Planning and Development Act 2000, the limit is 8 weeks from the decision for most planning judicial reviews, with extension only in limited circumstances. The 2024 Act regime carries its own strict limits for decisions made under that Act. Whichever regime applies, planning challenges are measured in weeks - engage a solicitor within days of the decision, not weeks.