Aberdeen City and Shire Strategic Development Planning Authority v Elsick Development Company Limited (Scotland)

Factual and Procedural Background

The Appellant, a strategic planning authority, anticipated major population and economic growth within its jurisdiction and concluded that extensive transport infrastructure was needed. To fund the works it introduced a policy, formalised through supplementary guidance (“SG”), requiring developers across four designated growth areas to enter into planning obligations that would pay fixed, per-unit sums into a pooled “Strategic Transport Fund.”

The Respondent, a developer proposing approximately 4,000 dwellings and related facilities, objected during consultation, contending that the contributions were disproportionate and contrary to national policy set out in a ministerial circular (“the Circular”). Despite the objection, the SG was adopted and therefore became part of the statutory development plan. The Respondent appealed to the Inner House of the Court of Session, which quashed the SG. The Inner House held that many developments, including the Respondent’s, would have only a trivial or no connection with several of the transport projects yet were still required to contribute.

The Appellant obtained permission to appeal to the Supreme Court, arguing that the Inner House applied an unduly restrictive legal test and that the SG had substantially complied with policy.

Legal Issues Presented

1. Whether, under existing planning legislation, a strategic planning authority can lawfully require developers to enter into planning obligations that fund a pooled infrastructure fund even where a particular development has only a trivial connection with specific infrastructure projects.
2. Whether the legal tests that constrain the validity of planning conditions also constrain planning obligations entered into under the relevant statutory provision.
3. Whether the planning obligation executed by the Respondent—requiring payment into the pooled fund—was a material consideration capable of supporting the grant of planning permission.

Arguments of the Parties

Appellant's Arguments

• The policy tests contained in the Circular are advisory and do not form part of the legal test for the validity of a planning obligation.
• The Inner House adopted an excessively restrictive approach by treating those policy tests as legal requirements.
• The SG substantially complied with national policy because developers were, in theory, free to opt out and deliver their own mitigation.
• The planning obligation should not be invalidated merely because contributions were pooled; pooling is permissible to address cumulative impacts.

Respondent's Arguments

• The required contribution was wholly disproportionate to the actual impact of its development on the specific infrastructure projects funded by the scheme.
• The SG violated the Circular’s test that an obligation must be “fairly and reasonably related in scale and kind” to the development.
• No rational basis existed for concluding that every listed transport intervention was necessitated by every contributing development, given the minimal traffic percentages evidenced in the technical appraisal.
• Because the obligation was unrelated (or only trivially related) to the Respondent’s development, it could not lawfully be imposed nor treated as a material consideration.

Table of Precedents Cited

Court's Reasoning and Analysis

The Supreme Court undertook a four-part analytical framework:

1. Validity of Planning Conditions. The court reiterated the well-established three tests: (i) planning purpose, (ii) fair and reasonable relation to development, and (iii) absence of Wednesbury unreasonableness.
2. Validity of Planning Obligations. Although planning obligations enjoy a wider statutory scope than conditions, they must still “restrict or regulate” the use of the burdened land and pursue a planning purpose. An obligation wholly unrelated to the development breaches the empowering statute and is ultra vires.
3. Materiality in Decision-Making. Citing Company E v Secretary of State (1995), an obligation is a material consideration only if it bears more than a trivial link to the development. Requiring payments for projects with trivial or no connection is irrelevant and cannot lawfully influence a grant of permission.
4. Policy vs. Law. Ministerial guidance in the Circular is a material consideration but not binding law. While the Appellant could depart from policy, it could not transgress statutory limits.

Applying that framework, the court found:

• Many infrastructure interventions funded by the pooled scheme bore only a trivial relationship to the Respondent’s development, as shown by traffic modelling data.
• The planning obligation did not “restrict or regulate” the Respondent’s land because the permission had effectively been granted subject only to executing the agreement; it therefore fell outside the statutory language.
• Consequently, the obligation was both ultra vires (no statutory authority) and irrelevant as a material consideration, rendering the SG and associated obligations unlawful.

Holding and Implications

Holding: The appeal is DISMISSED; the supplementary guidance requiring pooled contributions is unlawful and remains quashed.

Implications: The decision re-affirms strict statutory limits on planning obligations in Scotland. Planning authorities cannot compel developers to finance pooled infrastructure funds unless each contribution demonstrably and more than trivially relates to the specific development. Broader infrastructure levies will require new legislation rather than creative use of section 75 obligations. The judgment does not create new doctrine but crystallises existing principles, limiting similar funding mechanisms nationwide.