Material Contravention on Appeal: No Implied “Exceptional Reasons” Test, and SEA Does Not Regulate Project-Level Departures from SEA-Assessed Plans

Case: Kimmage Dublin Residents Alliance Company Ltd by Guarantee v An Coimisiun Pleanala and Ors (Approved) [2026] IEHC 406
Court: High Court of Ireland (Planning & Environment)  |  Judge: Humphreys J.  |  Date: 26 June 2026

1. Introduction

This judicial review challenged An Coimisiún Pleanála’s grant of permission (23 October 2025) for a large-scale social and affordable apartment scheme (208 units) in Dublin. The applicant was a local residents’ association. The notice party was the developer.

The permission was granted notwithstanding an expressly identified material contravention of the Dublin City Development Plan 2022–2028, namely Objective CUO25 requiring (for large-scale developments) a minimum 5% provision of community, arts and culture space. The Commission accepted that CUO25 was not met, but justified granting permission under s. 37(2)(a) Planning and Development Act 2000.

Two overarching legal issues dominated:

• Domestic law: whether s. 37(2)(a) contains an implied limitation requiring “very significant” or “exceptional” reasons, and/or requiring the justification for contravention to be confined to the subject-matter of the particular objective contravened.
• EU law (SEA): whether the SEA Directive (Directive 2001/42/EC) limits project-level permissions that depart from (or “derogate” from) an SEA-assessed development plan—either by requiring SEA screening/assessment of the “derogation”, or by permitting departure only where justified by another SEA-assessed plan.

2. Summary of the Judgment

• No implied “very significant reasons” test: The Court held that s. 37(2)(a) confers a broad discretionary power to grant permission on appeal even where the development materially contravenes the development plan, and the applicant’s proposed implied restrictions were not supported by text, context, or purpose.
• SEA does not apply to project consents: The Court held that SEA applies to “plans and programmes”, not individual project-level development consents. A decision to grant permission in material contravention is not itself a “plan or programme” or a “modification” that triggers SEA.
• Pleadings discipline: The Court emphasised stringent pleading requirements in planning judicial review, particularly for EU transposition claims, and refused to entertain certain arguments advanced outside the pleaded case.
• No CJEU reference: A preliminary reference was refused: the issues were acte clair/acte éclairé and, additionally, the proposed “SEA-justified-by-SEA-plan” thesis was not pleaded and thus not “necessary” for decision under Article 267 TFEU.

3. Analysis

3.1 The core methodological move: rejecting “interpolation” as a route to new constraints

Humphreys J. framed both principal complaints as attempts to insert (“interpolate”) limitations that do not appear in the legal texts and are not demanded by context or purpose. This was anchored in orthodox interpretation doctrine, especially:

• Heather Hill Management Co. CLG & Anor v. An Bord Pleanála [2022] IESC 43, [2024] 2 I.R. 222 (text is the “first port of call”; onus on the party seeking departure from plain meaning).
• Redwood Extended Care Facility v. Tailte Éireann [2026] IESC 3 (rejecting readings that “depend on interpolation into the statutory language” without contextual/purposive justification).

The judgment treats “workability” as a check on ambitious interpretive re-engineering (see further below), reinforcing that planning law is administered within a practical system rather than by judicially created superstructures.

3.2 Domestic law: s. 37(2)(a) and the limits of importing constraints from other contexts

(a) The applicant’s proposed implied limitation

The applicant argued that s. 37(2)(a) must be read as impliedly restricted such that:

• material contravention requires “very significant”/“exceptional” reasons; and/or
• the reasons justifying contravention must at least relate to the subject-matter of the particular development plan objective being contravened (here, cultural/community space).

(b) The Court’s answer: the text and structure of s. 37(2) deliberately distinguish (a) and (b)

The Court held that the statutory scheme itself supplies the relevant constraint. Section 37(2) draws a sharp line:

• s. 37(2)(a): a general power to grant permission on appeal “even if” there is material contravention.
• s. 37(2)(b): a restricted power where the planning authority refused permission on material-contravention grounds; the Commission “may only grant” permission if one of the listed conditions is satisfied (strategic importance, conflicting objectives, policy/guidelines/RSES, or development pattern), and must then state “main reasons and considerations” for contravention (s. 37(2)(c)).

The planning authority in this case granted permission, so s. 37(2)(b) did not apply. The Court refused to “import” the prescriptive constraints of s. 37(2)(b) into s. 37(2)(a).

(c) Role of Sherwin: the required decision-pathway is about engaging with the plan, not inventing a new “threshold” test

The Court relied on Sherwin v. An Bord Pleanála [2024] IESC 13 as the modern template for how plan compliance/contravention issues must be reasoned. Sherwin requires (in substance):

1. engage with and interpret (as needed) the relevant plan text;
2. determine whether there is a contravention;
3. if so, determine whether it is material;
4. if material, address the statutory pathway permitting grant notwithstanding contravention (where applicable).

Crucially, this is a process requirement (focus, interpretation, and reasoned determinations), not a judicially imposed substantive hurdle such as “exceptional circumstances”.

(d) Treatment of Cicol and Kenny: “very significant reasons” as context-specific dicta, not an implied amendment of s. 37(2)(a)

The applicant leaned on language from:

• Cicol Ltd v. An Bord Pleanála [2008] IEHC 146, and
• Kenny v. An Bord Pleanála [2020] IEHC 290,

where “very significant reasons” appears in the context of whether the Board was obliged (especially on a refusal) to go on to consider exercising discretion to permit a development notwithstanding contravention. Humphreys J. treated this as:

• fact- and context-specific (notably, refusal decisions and fair-procedures concerns);
• not a statement that s. 37(2)(a) contains a freestanding implied “very significant reasons” test governing all grants.

The Court’s broader doctrinal point is that judicial phrasing—even from prior planning cases—cannot be read as if it were statutory text capable of rewriting the legislature’s chosen structure.

(e) Planning judgment and review intensity

On the facts, the Court viewed the inspector’s and Commission’s choice as a legitimate planning balance: prioritising delivery of a significant quantum of (social and affordable) housing on a serviced, vacant urban site, in an area already well-served by a range of facilities, notwithstanding non-compliance with CUO25. This was treated as an evaluative judgment within lawful discretion and not susceptible to merits review.

(f) “Workability” as an interpretive control

The Court invoked the principle that the law disfavors unworkable interpretations, citing (among others) Heather Hill Management Company CLG v. An Bord Pleanála [2022] IESC 43 and Waltham Abbey v. An Bord Pleanála; Pembroke Road Association v. An Bord Pleanála [2022] IESC 30. The applicant’s proposed “exceptional reasons” overlay and “reasons must match the contravened objective” constraint were treated as both textually unsupported and systemically impractical (risking distorted, fragmented planning reasoning and destabilising the statutory hierarchy of considerations).

3.3 Pleadings and process: why the Court policed unpleaded and unraised points

A significant feature is the Court’s insistence that planning judicial review must be conducted within the pleaded case and, where relevant, within the material before the decision-maker. The judgment consolidates multiple lines of authority:

• Order 84 r. 20(3) RSC (“state precisely each ground”).
• “Scattergun” and confusing pleadings criticised in Hellfire Massy Residents Association v. An Bord Pleanála [2022] IESC 38.
• EU transposition pleadings must be particularly clear: Sweetman v. An Bord Pleanála (Sweetman XV) [2020] IEHC 39, endorsed in Concerned Residents of Treascon and Clondoolusk v. An Bord Pleanála [2024] IESC 28.

Two practical consequences followed:

• Certain technical planning complaints (e.g. para. 4.13 of the Apartment Guidelines 2023) were disfavoured because they were not raised in the planning process and were not treated as autonomous legal defects compelling the decision-maker’s engagement.
• The applicant’s later-developed SEA “only justified by another SEA-assessed plan/programme” thesis was rejected as not appearing in the pleadings—hence failing in limine.

3.4 EU law (SEA): the decisive boundary between “plans/programmes” and “projects”

(a) The applicant’s SEA theory

The applicant attempted to characterise a project-level permission that departs from an SEA-assessed development plan as a “derogation” or “modification” that must itself at least be screened under Article 3(3) SEA, or (as argued) can only be justified by another SEA-assessed plan.

(b) The Court’s answer: SEA governs plans/programmes, not development consents

The Court treated the governing proposition as settled: the SEA Directive applies to “plans and programmes” (and their modifications), whereas the EIA Directive applies to “projects”, and the Habitats Directive (Article 6(3)) can apply to both.

The key CJEU authority invoked for the plans/projects distinction was:

• Nomarchiaki Aftodioikisi Aitoloakarnanias and Others v Ipourgos Perivallontos, Chorotaxias kai Dimosion ergon and Others, C-43/10.

On that basis, the Court held the SEA Directive does not require SEA screening/assessment of a project-level “derogation” constituted by an individual planning permission, even if it materially contravenes an SEA-assessed plan.

(c) Thybaut correctly understood: SEA is triggered where the “derogation instrument” is itself a plan/programme

The judgment makes an important clarification of how Raoul Thybaut and Others v Région wallonne, C-160/17 operates. Thybaut requires SEA where the act allowing derogations is itself a plan/programme (there, an order adopting an urban consolidation area within which derogations from certain requirements were permissible). Humphreys J. treated Thybaut as undermining (not supporting) the applicant’s attempt to extend SEA to individual consents.

(d) St Teresa’s Gardens (C-09/22) does not convert permissions into plans/programmes

The applicant relied on NJ and OZ v An Bord Pleanála and Others (St Theresas gardens), C-09/22. The Court held it did not assist: it concerns when certain planning instruments (e.g. masterplans) might constitute “plans/programmes” for SEA purposes, not a rule that ordinary development consents “derogating” from a plan must be SEA-screened or SEA-justified by another SEA-assessed plan.

(e) Domestic authority already rejecting similar SEA arguments

The Court treated the applicant’s SEA case as foreclosed by recent High Court authority:

• O'Donnell v. An Bord Pleanála [2023] IEHC 381
• Ballyboden Tidy Towns Group v. An Bord Pleanála [2023] IEHC 722

In particular, Ballyboden’s emphasis on the unworkability and “legalistic trap” that would result from treating departures in development consents as SEA-triggering “modifications” was endorsed as directly applicable.

(f) “No lacuna” reasoning: SEA is procedural and sits within a hierarchy of environmental assessment tools

The Court rejected the notion of a regulatory gap: project-level environmental scrutiny is addressed by EIA/EIA screening where applicable and by AA screening/assessment for European sites. The SEA Directive is “procedural” (including Recital 9’s anti-duplication theme) and was not read as quietly imposing substantive constraints on the ability of domestic law to permit departures from plans via development consent.

3.5 Transposition claim (Core Ground 4): why it added nothing once the SEA premise failed

The transposition challenge to s. 37(2)(a) was parasitic on the same misconceived premise: that SEA must regulate project-level derogations. Once the Court held SEA does not apply to development consents, the non-/mis-transposition claim collapsed.

The judgment also contains a broader point of principle: transposition is not an obligation to anticipate and codify hypothetical future caselaw glosses; if EU law as interpreted requires a different outcome, the primary domestic route is conforming interpretation per Marleasing SA v La Comercial Internacional de Alimentacion SA, C-106/89, not an automatic cause of action for failure to insert textual “future-proofing” into primary legislation.

3.6 Preliminary reference: why no question was sent to the CJEU

The Court refused a reference, relying on classic Article 267 admissibility and acte clair principles and citing:

• Srl CILFIT and Lanificio di Gavardo SpA v Ministry of Health, 283/81
• Consorzio Italian Management and Catania Multiservizi SpA v Rete Ferroviaria Italiana SpA, C-561/19

Three reasons stand out:

• Not necessary: the applicant’s key SEA “SEA-plan-justification only” thesis was not pleaded, so it could not be “necessary” to decide the case.
• Acte clair/éclairé: the plans/projects boundary and SEA’s scope are already settled by CJEU authority and reflected in domestic case-law.
• No demonstrated doubt: the applicant produced no comparative jurisprudence suggesting Member State divergence or credible uncertainty.

4. Complex Concepts Simplified

4.1 “Material contravention”

A development “materially contravenes” a development plan where the departure is significant in planning terms. Under the 2000 Act, a planning authority needs a special elected-members resolution to grant permission in material contravention (s. 34(6)). The Commission on appeal has broader powers (s. 37(2)(a)), but faces stricter statutory conditions only in specific circumstances (s. 37(2)(b)).

4.2 SEA vs EIA vs AA

• SEA (Directive 2001/42/EC): strategic, upstream assessment for certain plans and programmes.
• EIA (Directive 2011/92/EU): project-level assessment for certain projects (and screening for sub-threshold projects).
• Appropriate Assessment (Habitats Directive Article 6(3)): applies to plans or projects likely to have significant effects on European sites.

The Court’s central EU-law move was to keep these tools in their proper lanes: SEA is not a backdoor to regulate individual development consents.

4.3 “Transposition” and “conforming interpretation”

“Transposition” is the Member State’s duty to implement a directive into national law. “Conforming interpretation” (Marleasing) is the duty of national bodies and courts to interpret national law, so far as possible, consistently with the directive. The judgment stresses that alleged directive “requirements” cannot be conjured into existence by reading beyond the directive’s text and scope.

4.4 “Interpolation”

The judgment uses “interpolation” to describe an interpretive error: inserting words or tests into legislation (or a directive) that are not there, and not demanded by context or purpose. Both the domestic-law claim (implied “very significant reasons”) and the EU-law claim (implied “SEA-justified-by-SEA-plan” restriction) failed on this basis.

5. Impact

5.1 For planning appeals and material contravention arguments

• The decision reinforces that s. 37(2)(a) is not judicially encumbered by an implied “exceptional” threshold. Challenges will need to focus on orthodox public law grounds: misinterpretation of the plan, failure to engage with relevant plan text per Sherwin v. An Bord Pleanála [2024] IESC 13, inadequate reasons on main issues, or unlawfulness/irrationality.
• The judgment discourages attempts to require a tight “subject-matter match” between the objective contravened and the reasons for contravention; planning reasoning may legitimately consider broader proper-planning considerations unless the statute says otherwise.

5.2 For SEA-based challenges to project permissions

• The judgment is a clear restatement that SEA does not apply to development consents as such, and that material contravention of an SEA-assessed plan does not itself trigger SEA screening/assessment.
• It aligns Irish practice with a workable “hierarchy” approach to assessment (SEA upstream, EIA/AA downstream), and treats attempts to convert departures into SEA-triggering “modifications” as unworkable and unsupported.

5.3 For pleadings and CJEU reference strategy in environmental/planning JR

• The judgment strengthens the message that complex EU points must be pleaded with precision and structured as a “route-map” from facts to relief; late-emerging “big theories” are vulnerable both on pleading and “necessity” grounds.
• Parties seeking a reference must demonstrate real doubt (often by comparative materials or conflicting authorities). Purely inventive doubt, without supporting jurisprudence, is unlikely to succeed.

6. Conclusion

[2026] IEHC 406 is principally a decision about discipline in legal method in planning judicial review. Humphreys J. rejects attempts to reshape s. 37(2)(a) by implying an “exceptional reasons” threshold, and rejects attempts to reshape the SEA Directive by extending it from “plans and programmes” to project-level planning permissions or to a novel requirement that departures must be justified by another SEA-assessed plan.

Practically, the judgment confirms the breadth of the Commission’s s. 37(2)(a) discretion (subject to proper planning and sustainable development and standard public law constraints), preserves the plans/projects boundary in EU environmental assessment law, and signals that future litigants must plead and evidence EU-law uncertainty if they are to obtain a CJEU reference.