Fahybeg Windfarm Opposition Group & Anor v An Bord Pleanala (Approved)

Factual and Procedural Background

The applicants challenged the decision of the planning board, made by way of board order dated 6th March 2024, to grant permission for a wind farm development comprising eight wind turbines and associated infrastructure at a site located in County Clare. The development included an underground grid connection cable, a meteorological mast, and an electrical substation. The planning authority, Clare County Council, initially refused permission on 3rd May 2023. The developer appealed, and the board granted permission on appeal following an inspector's report and consideration of submissions.

The applicants filed for judicial review, with leave granted on 24th June 2024. The matter proceeded through various procedural steps including filing of statements, opposition papers, and hearing dates. During the hearing on 13th May 2025, the developer produced evidence showing that tree felling proposed would occur outside a protected woodland area designated in the development plan. The applicants sought to introduce further evidence late in the process, which was refused due to procedural and evidential considerations. The hearing concluded on 26th May 2025 with judgment reserved.

Legal Issues Presented

1. Whether the board's decision lacked adequate reasoning and contained invalid conditions.
2. Whether the board erred in its assessment of material contravention of the development plan regarding tree felling in protected woodlands.
3. Whether the board failed to properly consider the impact of the development on residential property values.
4. Whether Condition 11 regarding shadow flicker was void for uncertainty or inconsistent with Condition 1.
5. Whether the board failed to carry out a complete Environmental Impact Assessment (EIA), particularly concerning borrow pits.

Arguments of the Parties

Applicants' Arguments

• The board failed to place relevant documents on its website as required by statute.
• The application was invalid for not indicating the need for a waste licence.
• The proposed development would materially contravene the development plan by causing loss of protected woodland (Ballymoloney Woods), which the board failed to properly consider.
• The board's reasoning regarding the impact on house prices was inadequate and improperly preferred the developer's evidence without sufficient basis.
• Condition 11 on shadow flicker was inconsistent with Condition 1 and thus void for uncertainty.
• The board failed to carry out a full EIA and appropriate assessment regarding spoil deposition and borrow pits.

Board's Arguments

• The board's decision should be read as valid and making sense, with the starting point that the decision is presumed valid unless displaced by the applicants.
• The proposed development does not materially contravene the development plan; the plan allows flexibility and planning judgment, and the limited tree felling proposed is not a material contravention.
• The board provided adequate reasons regarding the impact on house prices, relying on the absence of substantive evidence of depreciation and studies from other jurisdictions; reasons suffice without requiring detailed sub-reasons.
• The conditions on shadow flicker (Conditions 1 and 11) are not contradictory; Condition 1 is subject to subsequent conditions, and Condition 11 sets a maximum permissible limit consistent with planning guidelines.
• The references to borrow pits in the Environmental Impact Assessment Report (EIAR) were typographical errors; no borrow pits are proposed or permitted, and the board correctly assessed the development accordingly.

Developer's Arguments

• The developer contended that the tree felling would occur outside the protected woodland area and that the board's discretion was lawfully exercised.
• The developer argued that the shadow flicker conditions were clear and consistent, with the mitigation regime effectively limiting shadow flicker and the conditions reflecting planning guidelines.
• Regarding borrow pits, the developer confirmed that no borrow pits were part of the proposed development and that references to borrow pits in the EIAR were clerical errors.
• The developer supported the board's position on the impact on property values, asserting that no substantive evidence was presented to show depreciation attributable to the development.

Table of Precedents Cited

Court's Reasoning and Analysis

The court began with the principle that administrative decisions should be read as valid and making sense if reasonably possible. The applicants bore the onus to displace this presumption.

Regarding the material contravention ground, the court found that the applicants failed to prove that the tree felling would occur within the protected woodland area designated in the development plan. The developer's evidence, supported by an expert map, showed the felling was outside the protected "blob". The court emphasized that the applicants had ample opportunity to challenge this evidence but failed to do so effectively, including by not seeking cross-examination. Consequently, the claim of material contravention failed on the evidential burden.

On the issue of reasons relating to property values, the court held that the board provided adequate reasons based on the absence of substantive evidence showing depreciation attributable to the development. The board's preference for the developer's evidence was a factual determination entitled to deference. The court rejected the applicants' demand for more detailed "reasons for reasons," noting that the obligation is to provide main reasons on main issues.

Concerning the alleged inconsistency between Conditions 1 and 11 on shadow flicker, the court applied established principles of statutory and planning condition interpretation. It found that Condition 1 is expressly subject to subsequent conditions, including Condition 11, which sets a clear maximum threshold for shadow flicker. The conditions were read harmoniously, avoiding invalidity or contradiction. The mitigation measures remain operative, and Condition 11 provides a fallback limit, consistent with planning guidelines.

On the environmental assessment ground relating to borrow pits, the court accepted that references to borrow pits in the EIAR were typographical errors. There was no evidence that borrow pits formed part of the proposed development or the planning permission. The board and inspector correctly understood this, and the minor errors did not affect the substantive decision. The court noted established authority that decisions should not be quashed over immaterial errors.

Overall, the court emphasized procedural fairness, the burden of proof on applicants, and the need to avoid procedural chaos by reopening issues late without justification.

Holding and Implications

The court DISMISSED the applicants' proceedings challenging the planning board's decision to grant permission for the wind farm development.

The decision confirms the validity of the board's exercise of planning judgment, the adequacy of its reasons, and the lawful interpretation of planning conditions. The court's refusal to allow late evidence and its emphasis on the burden of proof underscore procedural rigor in judicial review of planning decisions.

No new legal precedent was established beyond the application of existing principles of administrative law, planning law, and judicial review procedure. The immediate effect is the upholding of the planning permission, allowing the development to proceed subject to the conditions imposed.

The court also indicated that the meaning of the interaction between Conditions 1 and 11 regarding shadow flicker would be noted as a recital in the order, clarifying that mitigation measures remain operative and that Condition 11 sets a maximum permissible limit.