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Thomson & anor v An Bord Pleanala (Approved)
Factual and Procedural Background
The Respondents live in The City. On 17 June 2021 the Appellant (“the Board”) granted Company A planning permission for a telecommunications mast near the Respondents’ home. Any judicial review had to be initiated within eight weeks under s. 50(6) of the Planning and Development Act 2000 (“the 2000 Act”). The Respondents did not sue within that period, citing potential costs exposure.
From early 2022 a series of media reports raised doubts about the impartiality of a former deputy chairperson of the Board who had participated in the decision. The Respondents collated statistical data suggesting that an unusually high proportion of similar appeals had been allocated to that individual and that he frequently overturned inspectors’ recommendations.
After further enquiries and an environmental information request, the Respondents commenced judicial review on 28 November 2022—well outside the statutory eight-week limit. Judge Humphreys of the High Court initially granted leave ex parte but, on the Board’s motion, later set aside that order, refusing any extension of time.
The Court of Appeal (majority: Judge O’Moore and Judge Meenan; dissent: Judge Allen) reversed, holding that “good and sufficient reason” existed to extend time. The Supreme Court granted the Board leave to appeal, describing the matter as one of general public importance. The Attorney General was joined as a notice party. The present judgment, delivered by Judge Woulfe, decides that appeal.
Legal Issues Presented
- Whether the Court of Appeal erred in concluding that “good and sufficient reason” existed under s. 50(8)(a) of the 2000 Act to extend time by approximately 24 weeks.
- What weight a court may give to (a) the public interest in investigating alleged systemic bias and (b) the apparent strength of the underlying case when exercising the discretion to extend time.
- Whether unexplained periods of delay are necessarily fatal to an application for an extension of time.
Arguments of the Parties
Appellant’s Arguments (the Board)
- The eight-week limit reflects a legislative policy of certainty; extensions must be “strictly construed”.
- The Respondents failed to explain several lengthy periods of inactivity, particularly mid-August to late November 2022.
- The Court of Appeal elevated the public-interest factor above all others and effectively nullified the statutory time limit.
- Merits should influence the discretion only where a case is “extremely strong” and uncontested, which is not the situation here.
- If proceedings go ahead, the Board will dispute that the statistical evidence demonstrates bias.
Respondents’ Arguments
- “Good and sufficient reason” demands a holistic assessment; the Court may consider merits and public interest.
- Objective bias allegations should not be pleaded without adequate evidence; key allocation data were only confirmed on 8 November 2022.
- The Aarhus Convention and domestic rules emphasise effective, not restrictive, access to environmental justice.
- Public confidence in the integrity of the planning system outweighs commercial certainty where systemic bias is alleged.
- Authority exists for taking merits into account; the case appears demonstrably strong on the present record.
Attorney General’s Arguments
- Legal certainty is itself a significant public interest; the Court of Appeal failed to balance this against the alleged bias.
- Merits should matter only where the claim is “extremely strong”; the majority judgment overstated that principle.
- The High Court’s holistic approach was orthodox; there was no basis to discard it.
Table of Precedents Cited
| Precedent | Rule or Principle Cited For | Application by the Court |
|---|---|---|
| Dunne v Kildare County Council [2023] IEHC 73 | Non-exhaustive list of factors relevant to extending time. | Referenced to illustrate holistic analysis. |
| M O’S v Residential Institutions Redress Board [2019] 1 ILRM 149 | Strength of merits may justify extension where case is overwhelmingly strong. | Used to contrast ordinary cases with “extreme” cases. |
| Arthropharm (Europe) Ltd v Health Products Regulatory Authority [2022] IECA 109 | Limits on assessing merits at extension stage. | Guided caution against elaborate merits review. |
| Irish Skydiving v An Bord Pleanála [2016] IEHC 448 | Strict construction of planning-review time limits. | Cited by Appellant to stress legislative intent. |
| Kelly v Leitrim County Council [2005] 2 IR 404 | Non-exhaustive factors (length, third-party rights, merits, etc.). | Formed part of the Supreme Court’s analytical framework. |
| Tracey v McCarthy [2017] IESC 7 | Obligation of expedition once grounds are known. | Invoked by Appellant regarding post-instruction delay. |
| Reid v IDA [2015] 4 IR 494 | Objective bias test. | Cited by Respondents to justify need for evidence before pleading bias. |
| White v Dublin City Council [2004] 1 IR 545 | Public interest in finality but also in rectifying illegality once discovered. | Both sides relied on different aspects. |
| G K v Minister for Justice [2002] 2 IR 418 | Phrase “good and sufficient reason” confers broad discretion; merits may be considered. | Quoted by Supreme Court in statutory interpretation. |
| Noonan Services Ltd v The Labour Court (HC, 25 Feb 2024) | Policy rationale for strict cut-off points. | Re-stated in discussion of legislative intent. |
| K.S.K Enterprises Ltd v An Bord Pleanála [1994] 2 IR 128 | Need for early certainty for permission holders. | Cited in policy discussion. |
| Shell E & P Ireland Ltd v McGrath [2013] 1 IR 247 | Finality in planning process. | Invoked by Attorney General on certainty. |
| SC SYM Fotovoltaic Energy v Mayo County Council [2018] IEHC 20 | Synthesis of extension-of-time principles. | Guided Supreme Court summary of jurisprudence. |
| Dekra Eireann Teo v Minister for the Environment [2003] 2 IR 270 | Relevance of blame and holistic assessment. | Part of jurisprudential background. |
| O’Donnell v Dún Laoghaire Corporation [1991] ILRM 301 | Discretionary nature of extension. | Included in case-law survey. |
| C.S. v Minister for Justice [2005] 1 ILRM 81 | Fault is one factor, not the only determinant. | Quoted to illustrate balancing exercise. |
| DPP v Samantha Tindall [2021] IEHC 283 | Dangers of extensive merits assessment at leave stage. | Referenced in merits discussion. |
| R (Thornton Hall Hotel Ltd) v Wirral MBC [2019] EWCA Civ 737 | Extensions justified by strong public interest (English authority). | Used by Respondents to show comparative approach. |
| Jerry Beades Construction v Dublin City Council & An Bord Pleanála [2005] IEHC 406 | Applicant’s knowledge as a primary consideration. | Cited in academic commentary adopted by Respondents. |
| Heaney v An Bord Pleanála [2022] IECA 123 | Holistic approach; merits rarely decisive. | Relied on by both sides for different propositions. |
Court's Reasoning and Analysis
The Supreme Court reiterated that s. 50(6) imposes a strict eight-week limit, but that s. 50(8) expressly permits extensions where “good and sufficient reason” exists. Drawing on G K, the Court held that this phrase confers a broad, discretionary jurisdiction requiring a holistic assessment of competing factors.
After reviewing the jurisprudence (Kelly, Heaney, Dunne), the Court listed key factors: legislative policy, applicant blameworthiness, prejudice to third parties, public interest, merits, and overall delay. It emphasised that no single factor is invariably decisive.
Applying those principles, the Court found:
- Exceptional Public Interest. Allegations of systemic bias in the Board’s allocation of files raise questions going to the integrity of the national planning regime. This factor was “prima facie” a good reason to extend time.
- Countervailing Certainty. Although certainty for permission-holders is vital, the Oireachtas itself contemplated derogation from that value where good reason exists.
- Limited Prejudice. Company A had not acted on its permission and offered no evidence of specific prejudice; assumed prejudice therefore carried less weight.
- Delay Explanation. While gaps existed between mid-August and November 2022, the Respondents were actively seeking crucial allocation information during much of that period. Holistically, the delay was not so inexcusable as to bar relief.
- Merits. Without undertaking an elaborate review, the Court accepted that the claim appeared strong, but clarified that its decision did not rest on that view.
Accordingly, the Court held that the Court of Appeal had properly exercised its discretion and that no error of principle warranted interference.
Holding and Implications
APPEAL DISMISSED.
The Supreme Court affirmed the Court of Appeal’s order extending time, allowing the Respondents’ judicial review to proceed. The ruling underscores that, in rare and exceptional circumstances involving serious systemic allegations, public interest may outweigh the normally decisive interest in planning certainty. While the judgment clarifies the balancing test under s. 50(8), it does not create a blanket relaxation of the eight-week rule; applicants must still provide a cogent, evidence-based justification for any delay.
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