Grassridge Ltd v Dun Laoghaire Rathdown County Council (Approved)

Factual and Procedural Background

The Applicant ("Company A") sought judicial review by certiorari to quash the decision of the Respondent ("Company B"), a planning authority, dated 27 August 2024, refusing to extend the duration of a planning permission ("the Impugned Decision"). The planning permission related to the demolition of a former nursing home and the construction of 15 dwellings at a site in County Dublin ("the Site"). The permission was originally refused by Company B in 2018 but granted on appeal in 2019, with an appropriate period expiring on 7 September 2024.

Commencement of works was delayed due to various reasons, including the Covid-19 pandemic and tendering issues. Construction of nine units began in April 2024. Company A paid various fees and bonds to Company B and received a payment under a government waiver scheme conditioned on completion by 31 December 2025.

On 2 July 2024, Company A applied to Company B under s.42 of the Planning and Development Act 2000 (PDA 2000) for a two-year extension of the planning permission duration ("the First Extension Application"). This application included detailed submissions by a planning consultant ("the Consultant Submission") outlining the extent and value of works completed and citing precedent extension decisions. Company B refused the extension on the basis that substantial works had not been carried out within the appropriate period.

Company A made a second extension application on 2 September 2024, which was also refused. Company A seeks judicial review of the first refusal, challenging the decision on grounds of error of law and fact, failure to consider submissions adequately, insufficient reasoning, breach of fair procedures, irrationality, and disproportionality.

Legal Issues Presented

1. Whether Company B erred in law in its interpretation and application of the statutory test for "substantial works" under s.42 PDA 2000.
2. Whether Company B made an error of fact in concluding that the works carried out were not substantial.
3. Whether Company B failed to adequately consider Company A's submissions and provide adequate reasons for its decision.
4. Whether the Impugned Decision breached principles of fair procedures or proportionality.
5. Whether the Impugned Decision was irrational or ultra vires.

Arguments of the Parties

Applicant's Arguments

• Company B wrongly interpreted "substantial works" by requiring a holistic assessment relative to the entire permitted development, imposing a threshold not found in the statute.
• The demolition, excavation, and removal of over 5,000m³ of granite, valued at over €1 million, constituted substantial works as a matter of fact.
• Company B failed to engage adequately with detailed submissions and precedent decisions provided by Company A.
• The reasons given by Company B were conclusory and insufficient to explain why works of such extent and value were deemed insubstantial.
• The decision was disproportionate, given Company B had accepted commencement notices and substantial fees, creating legitimate expectations.
• The Impugned Decision was irrational as no reasonable planning authority could have concluded the works were not substantial.

Respondent's Arguments

• Company B's interpretation of "substantial works" requiring contextual assessment relative to the permitted development is consistent with established case law.
• The assessment of substantial works is a matter of evaluative judgment and discretion for the planning authority.
• Company B properly considered all submissions, including the Consultant Submission, and was not bound by precedent decisions.
• The reasons provided, while concise, were adequate in context and allowed Company A to understand the basis of refusal.
• Acceptance of commencement notices and payments under separate legislation did not fetter Company B's discretion regarding planning permission duration.
• The decision was lawful, rational, and made in accordance with statutory duties and judicial review principles.

Table of Precedents Cited

Court's Reasoning and Analysis

The court began by emphasizing the statutory framework under s.42(1) PDA 2000, which mandates that a planning authority must extend the duration of a planning permission if it is satisfied that the development was commenced before expiry, substantial works were carried out, and the development will be completed within a reasonable time. The court noted that the question of whether substantial works have been done is an evaluative judgment for the planning authority, reviewable only for irrationality.

The court rejected the Applicant's argument that the planning authority erred in law by applying a "holistic" or contextual approach to assessing substantial works. Instead, it held that considering the works relative to the permitted development as a whole is consistent with established case law, including Littondale and Frenchurch.

On the facts, the court accepted that while significant demolition and excavation works valued at approximately €1.125 million were carried out, these works did not move beyond excavation for foundations and services. The court found that the planning authority's conclusion that such works were not substantial within the meaning of s.42 was a bona fide evaluative judgment supported by evidence, and thus not irrational.

The court further rejected the Applicant's allegation of error of fact, holding that the planning authority's opinion as to the significance of the works was not objectively verifiable fact but an evaluative judgment and thus not susceptible to challenge on mere disagreement.

Regarding procedural fairness and proportionality, the court found no breach of fair procedures. It clarified that separate statutory regimes govern building control and planning permissions, and acceptance of commencement notices or payments under those regimes did not fetter the planning authority's discretion under s.42. The proportionality argument was dismissed as it related to the merits of the decision, which are not reviewable beyond the irrationality threshold.

On the adequacy of consideration and reasons, the court held that the planning authority had adequately considered the submissions and evidence, including the Consultant Submission and photographs. Although the reasons were concise and somewhat conclusory, they were adequate in context to allow Company A to understand why the extension was refused. The court rejected the contention that the planning authority applied an impermissible rule of thumb or formula.

Finally, the court addressed the allegation of irrationality, reaffirming the high threshold for such a finding. It concluded that the decision was not fundamentally at variance with reason and common sense and was supported by a reasonable basis. The court acknowledged that viewed in isolation the works might appear substantial, but the statutory test requires contextual assessment, which the planning authority properly applied.

Holding and Implications

The court DISMISSED the Applicant's judicial review proceedings and upheld the Impugned Decision refusing the extension of the planning permission duration.

The direct effect is that Company A's planning permission expired on 7 September 2024 without extension, and construction works must cease. The court noted that this decision does not establish new legal precedent but applies established principles on the interpretation of "substantial works" under s.42 PDA 2000 and the limits of judicial review of planning authority decisions. The court emphasized that the planning authority's evaluative judgment is entitled to deference unless irrational, and that procedural and reason-giving requirements were met in this case.