Busher v. An Coimisiún Pleanála (No. 2) — Dismissed judicial review and upheld planning permission for wastewater treatment plant

Case
Busher and Ors v. An Coimisiún Pleanála and Uisce Éireann [No. 2]
Court
High Court (Ireland)
Date Decided
3 July 2026
Citation
[2026] IEHC 434
Topics
Environmental law, Planning law, Infrastructure, Judicial review
Source
Read the full opinion

Background

Kilkee, County Clare, has lacked wastewater treatment infrastructure for decades, resulting in untreated sewage being discharged directly into coastal waters. The EPA had required treatment works by 31 December 2015. In January 2024, Uisce Éireann applied for planning permission to construct a wastewater treatment plant and pumping station. Clare County Council’s planner recommended refusal. The Planning Commission’s inspector similarly recommended refusal, finding the site not “optimal” for landscape impact. The Planning Commission overrode this and granted permission in June 2025, subject to landscaping conditions.

Local residents sought judicial review on four grounds: that the Planning Commission wrongly deferred noise and odour matters to EPA licensing; failed to consider site lighting impacts; improperly addressed landscaping adequacy despite an expert predicting planting failure; and failed to consider EU law on secondary treatment requirements. The fourth ground was abandoned before hearing.

The Court’s Holding

Humphreys J. dismissed the judicial review and upheld the permission. The court emphasised the urgent environmental need: decades of untreated sewage discharge to coastal waters constitutes a material consideration of significant weight favouring approval. The court found the Planning Commission properly exercised discretion in disagreeing with its inspector on landscape impact, noting no mandatory site selection process exists under planning law.

The court held that Uisce Éireann’s multi-criteria site analysis was reasonable, and the Planning Commission’s assessment that the chosen location was acceptable—particularly given proposed landscaping, native screening, and photomontages—was not irrational. The Planning Commission gave adequate reasons for its decision. Applicants had not raised all grounds with sufficient clarity on the pleadings, limiting the court’s review scope.

Key Takeaways

  • Planning commissions may override inspector recommendations on subjective matters like landscape and visual amenity where discretionary judgment applies.
  • Urgent environmental infrastructure needs—such as ending raw sewage discharge—are material considerations that can outweigh local amenity objections.
  • Applicants must articulate grounds of challenge, including complex legal arguments, clearly on pleadings; courts will not entertain points introduced only at hearing.
  • Developers need not prove a site is “optimal,” only that it is a reasonable and acceptable location under planning law.

Why It Matters

This decision demonstrates how courts balance environmental urgency against local planning objections. Kilkee’s decades-long sewage discharge exemplifies the practical imperative behind wastewater infrastructure approval. The judgment confirms planning authorities have discretion to approve such projects despite amenity impacts, provided proper environmental assessment and mitigation conditions are in place. This reflects EU law’s drive to end untreated discharges, particularly relevant given the 31 December 2037 deadline for secondary treatment compliance under the revised Urban Wastewater Treatment Directive.

The ruling also clarifies judicial review boundaries: courts defer to planning discretion on amenity assessments and will not second-guess reasonable professional judgment. It reinforces that applicants must present pleadings with precision, particularly regarding EU law arguments, and cannot rely on expert evidence or legal points withheld until trial. This maintains the distinction between judicial review as a check on legality and procedural fairness, versus a merits re-hearing.

⬇ Download the original opinion (PDF)Archived from the court's official source.
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