Leave to Appeal Refused Where Section 15 Climate Challenges Reconfigure Pleadings After Coolglass and Mischaracterise the Judgment

1. Introduction

This judgment concerns an application by the applicants (including an environmental NGO and community groups) for leave to appeal the High Court’s earlier dismissal of their substantive judicial review (Module II) challenging a planning permission granted by An Coimisiún Pleanála for a large data centre development promoted by a developer (a company) as notice party.

The leave application was framed as raising questions of “exceptional public importance” about how s.15 of the Climate Action and Low Carbon Development Act 2015 (as amended in 2021) operates at project level—especially where the permission includes (by interpretation of conditions) a requirement for Corporate Power Purchase Agreements (CPPAs) intended to offset operational electricity use with renewable generation.

A central backdrop was the Supreme Court’s then-recent decision in Coolglass Wind Farm Ltd v. An Coimisiún Pleanála [2026] IESC 5, which (as the High Court repeatedly emphasised) set the governing framework for s.15 challenges and limited the role of courts where decision-makers act within an evaluative “spectrum of options”.

2. Summary of the Judgment

• Leave to appeal refused. The proposed questions did not properly arise, were fact-bound, unpleaded, or sought to re-run or reconfigure the case after the event.
• Coolglass treated as dispositive. The High Court held the applicants’ difficulty was accepting the practical consequences of the Supreme Court’s framework: appellate courts are not to revisit routine applications of settled planning/climate principles to particular facts.
• No “litigation-by-snippet”. The court rejected attempts to extract isolated words (e.g., “powered from renewables” or “had regard to”) from the earlier substantive judgment/decision, contrary to contextual reading.
• CPPA dispute was pleaded narrowly. The applicants’ pleaded case was essentially that there was no CPPA/mitigation requirement; once the court rejected that premise (finding conditions effectively required CPPAs), the remaining climate arguments “fell like dominoes”.
• Public interest and finality. The court stressed legislative goals of finality/expedition in planning JR, prejudice to the developer from further delay, and the absence of a concrete public benefit from an appeal.
• Costs disposition. Leave application dismissed; no order as to costs unless a leapfrog appeal to the Supreme Court were acceded to (in which case costs would follow that appeal).

3. Analysis

3.1 Precedents Cited and Their Role

This judgment is unusual in the breadth of authority it collects on the leave to appeal gatekeeping function in planning judicial review, and on disciplined appellate practice. The citations are used primarily to enforce three themes: (i) the point must arise on the pleadings and facts; (ii) it must be a point of law (not a fact/mixed fact-and-law dispute); and (iii) it must be of exceptional public importance and in the public interest, in a statutory context favouring finality.

• Supreme Court climate framework (dispositive backdrop)
  Coolglass Wind Farm Ltd v. An Coimisiún Pleanála [2026] IESC 5: treated as settling how s.15 is operationalised—planning decision-makers have climate duties and a margin of appreciation, and courts should not treat climate litigation as conferring an applicant “monopoly stake-holding” over climate outcomes. The High Court characterised the proposed appeal as, in substance, an attempt to escape the constraints of Coolglass.
• Pleadings discipline; point must properly arise
  Concerned Residents of Treascon and Clondoolusk v. An Bord Pleanála & Ors. [2024] IESC 28: confirms the appeal point must fall within the pleadings. This underpinned the rejection of questions that introduced new critiques of CPPA “content” (additionality, time-matching, proximity) not pleaded at trial.
  
  GOCE Limited v. An Bord Pleanála [2025] IEHC 43: relied on for the proposition that the proposed question must have been argued below; it cannot be minted for appeal.
• Case-specific disputes are not points of public importance
  Leech v. An Bord Pleanála [2025] IESCDET 106 and Leech v. An Bord Pleanála [2025] IEHC 157: cited to distinguish true points of law from case-specific quarrels about interpretation of a particular administrative decision, pleadings, and application of the presumption of validity.
• Determinative requirement; avoid “shiny” non-outcome-changing points
  Rooney v. Minister for Agriculture and Food [2016] IESC 1: used to criticise the tendency to fixate on debatable snippets while ignoring the “forest” of problems in the overall case. The High Court treated the “powered from renewables” complaint as ultimately non-determinative once the operative reasoning (CPPA-offset within the decision-maker’s evaluative spectrum) was engaged.
• No distortion of the judgment; no essay questions
  Monkstown Road Residents Association v. An Bord Pleanála [2023] IEHC 9 and Stapleton v. An Bord Pleanála [2025] IEHC 178: authority for the proposition that proposed questions must accurately reflect the judgment and be specific, not exaggerated or discursive.
  
  Phoenix Rock Enterprises v. An Bord Pleanála & Ors. [2023] IESCDET 97: used to reject asserted “practical uncertainty” unsupported by evidence and to emphasise the Supreme Court’s non-advisory role in certification appeals.
• Finality and expedition in planning JR; prejudice of delay
  Cork Harbour Alliance for a Safe Environment v. An Bord Pleanála [2022] IEHC 231, Freeney v. An Bord Pleanála [2025] IEHC 36, and Dunnes Stores v. An Bord Pleanála [2015] IEHC 387: deployed to place public-interest analysis in the statutory setting (s.50A-type finality values), including the weight given to further delay and project prejudice.
• “Spread maximum confusion” as an anti-pattern
  Hellfire Massy Residents Association v. An Bord Pleanála [2022] IESC 38: invoked to characterise the applicants’ formulation of Question 1 as an exercise in obscuring the real issue (whether the Commission could rely on CPPAs/offsets within the Coolglass spectrum) by focusing on an isolated phrase.
• Draft judgments and procedural discipline
  O'Sullivan v. Health Service Executive [2023] IESC 11 and O'Sullivan v. Sea Fisheries Protection Authority [2017] IESC 75: cited to justify a streamlined, disciplined draft-judgment comment process, rejecting any implication of “criminal-trial-like” procedural entitlements at every interlocutory stage.
  
  Draft confidentiality was supported by Attorney General v. Crosland (No. 2) [2021] UKSC 58 and related English/Jersey authorities.
• Failure to raise points at the right time
  Bank of Ireland Mortgage Bank U.C. v. Murray & Anor [2026] IESC 30: used to reinforce that parties should “pipe up” with relevant issues when they have the opportunity (here, during the draft judgment review), rather than using them tactically later as an appeal lever.

3.2 Legal Reasoning

A. The Coolglass constraint: appellate restraint and trial-level application

The judgment’s central legal move is to treat Coolglass as settling the interpretive framework for s.15 climate “consistency” review in planning JR. On that view, the High Court’s task was to apply that settled law to the Commission’s decision; an appeal would (impermissibly) ask an appellate court to revisit a fact-bound application of the Coolglass evaluative spectrum.

B. “Litigation-by-snippet” rejected: contextual reading and non-determinative phrasing

The applicants’ first proposed question relied on a phrase in the earlier substantive judgment describing the project as “powered from renewable energy”. The High Court held this was being read literally and out of context. Read fairly and holistically, the phrase meant the project was permitted on the basis of an offsetting structure (CPPAs) that could be treated as the equivalent of renewable powering for the relevant evaluative exercise.

Even if the phrase were imperfect, the court held it could not support leave because it would not change the outcome: the operative reasoning (and the Supreme Court’s framework) allowed the Commission to consider net emissions, including the effect of conditions/mitigation such as CPPAs.

C. Pleadings as a hard boundary: no re-invention on certificate

A decisive element was the gap between (i) what was pleaded and argued and (ii) what was advanced as “questions” for appeal. The applicants’ pleaded climate complaint was framed as an irrational failure to require mitigation—specifically, that there was no CPPA requirement. The High Court’s substantive conclusion (now taken as given for leave purposes) was that conditions effectively required CPPAs by reference to para. 4.48 of the John Spain Associates response document, as reflected in the recital ordered by consent.

The leave application pivoted to new alleged defects in CPPA design (e.g., additionality, time-matching, proximity). The court treated this as a wholesale reconfiguration: these contentions were neither pleaded nor meaningfully run at the hearing, and therefore did not “properly arise”.

D. The certification criteria applied: law, public importance, exceptional importance, public interest

Humphreys J. applied the familiar structured criteria:

• Properly arising: The questions were either snippet-based distortions, factually untethered, or new points.
• Point of law: The first question was “mired in the facts”; the second was defeated by the factual premise (“they did more here” than mere recital); the third was “essayistic”.
• Public importance and exceptional importance: With Coolglass definitive, there was no demonstrated legal uncertainty requiring appellate intervention.
• Public interest: Finality in planning JR, the developer’s uncompensatable delay/prejudice, and absence of evidenced public benefit weighed against leave.

E. Draft judgment procedure: discipline, confidentiality, and later “gotcha” arguments

A notable procedural strand is the court’s emphasis on Practice Direction HC 137 draft circulation and the obligation to identify typographical/ambiguity issues promptly. The applicants did not raise the alleged “powered from renewables” issue at draft stage; the court viewed the later reliance on it as opportunistic and contrary to orderly administration of justice.

3.3 Impact

• Consolidation of post-Coolglass planning climate JR practice. The judgment reinforces that, absent genuine legal uncertainty, appellate courts should not be drawn into repeated re-litigation of how trial courts apply Coolglass to particular projects.
• Sharper pleadings expectations in climate cases. Project-level climate arguments about the adequacy of offsets/CPPAs (additionality, matching, proximity, scope of emissions, etc.) must be pleaded with particulars. A general assertion (“it must be noted…”) will not suffice, especially given O. 103 r. 14(3) RSC.
• Offsets and “net” framing are treated as legitimate considerations within the decision-maker’s evaluative space. While the judgment is formally about leave to appeal, its reasoning signals that conditioned CPPAs (as mitigation/offset) can be part of the Commission’s s.15 evaluative assessment and may defeat a pleaded case built on “no mitigation”.
• Procedural behaviour matters. Parties who do not raise alleged ambiguities at draft-judgment stage may face difficulty later relying on them as appeal triggers. The decision may encourage more active draft-review engagement (including by successful parties) to prevent later exploitation.
• Limits of “macro-to-micro” climate governance arguments without a pleaded pathway. The court left open that carbon budgets/sectoral emissions ceilings issues could be arguable if properly pleaded in another case, but refused to entertain an abstract “whether and how” essay question divorced from the pleaded controversy.

4. Complex Concepts Simplified

• Leave to appeal / “certificate” (planning JR): In Irish planning judicial review, an appeal is not automatic. The High Court must certify that the proposed appeal raises a point of law of exceptional public importance and that it is desirable in the public interest that an appeal be taken. This is designed to promote finality and avoid routine multi-tier litigation.
• s.15 “consistency” duty (2015 Act as amended): Public bodies must perform their functions consistently with specified climate plans/strategies. Post-Coolglass, courts review whether the decision-maker acted within a reasonable evaluative range rather than substituting their own climate policy assessment.
• “Spectrum of options” / margin of appreciation: A decision-maker may have multiple lawful ways to comply with climate duties. Courts intervene only when the decision falls outside the permissible range (e.g., irrationality or legal error), not simply because applicants disagree on the merits.
• Gross vs net emissions and CPPAs: Gross emissions are total emissions attributable to activity; net emissions reflect deductions for mitigation/offsets. A CPPA is a contract to purchase renewable electricity (often supporting renewable generation) and, in this case, was treated as an offset mechanism linked to operational electricity use.
• Pleadings: The Statement of Grounds defines the legal case. A party generally cannot introduce new grounds on appeal—especially not after seeing the judgment—because it would be unfair and would undermine finality.
• “Litigation-by-snippet”: A pejorative label used here for extracting isolated phrases from a decision/judgment to manufacture an error, instead of reading the text as a whole.

5. Conclusion

In Doyle and Ors v An Coimisiun Pleanala and Ors [No. 4] [2026] IEHC 340, the High Court refused leave to appeal, holding that the proposed questions did not properly arise, were largely fact-bound or abstract, and impermissibly sought to reconfigure an unsuccessful s.15 climate challenge in the wake of the Supreme Court’s definitive framework in Coolglass Wind Farm Ltd v. An Coimisiún Pleanála [2026] IESC 5.

The decision underscores that certification is not a vehicle to re-litigate case-specific applications of settled law, to mount new unpleaded critiques (including of the design of CPPAs), or to exploit isolated wording in a judgment divorced from its operative reasoning. It also reinforces the statutory emphasis on finality and expedition in planning judicial review, particularly where further delay would cause significant prejudice to a developer and where no concrete public-interest gain is demonstrated.