Background
Y Bryn Wind Farm Limited sought planning permission for up to 18 wind turbines, each up to 250 metres high, and associated infrastructure in the Bryn and Penhydd forests between Port Talbot and Maesteg. The proposed wind farm would have had a capacity of up to 129.6 MW. Five turbines were planned within an area pre-assessed for wind energy under Future Wales, while the remainder were outside that area; most were within the Mynydd Margam Registered Landscape of Special Historic Interest.
The Welsh Ministers accepted a planning inspector’s recommendation and refused permission on 21 November 2025. Although the inspector attributed significant weight to the project’s renewable-energy, climate, and socioeconomic benefits, he found unacceptable adverse effects on landscape character, visual amenity, and heritage, including effects involving the Gower National Landscape and the Mynydd Margam registered historic landscape. The developer challenged the decision under section 288 of the Town and Country Planning Act 1990 on five grounds: procedural unfairness, misinterpretation of national policy, inconsistency with an earlier decision, and flawed treatment of landscape and heritage impacts.
The Court’s Holding
HHJ Jarman KC rejected every ground of challenge, holding that the inspector’s report, read fairly as a whole and without hypercritical scrutiny, disclosed no material legal error. There was no procedural unfairness concerning the statement of common ground with Cadw: it had not displaced Cadw’s assessment of a significant adverse effect on the registered historic landscape, and the inspector did not materially depart from the agreed position without giving the developer another opportunity to respond.
The inspector also interpreted Future Wales Policies 17 and 18 correctly. He was entitled first to decide whether the proposal would cause unacceptable harm under Policy 18 and then to weigh that harm against the project’s undisputed benefits; that approach was not merely permissible but proper. The court further rejected the alleged inconsistency based on wording used in another inspector’s report and upheld the inspector’s assessment of the pre-assessed areas, the Gower National Landscape, local planning policies, Cadw’s views, TAN 24, and the non-statutory Mynydd Margam registered historic landscape.
Accordingly, the statutory-review claim failed, leaving the Welsh Ministers’ refusal of planning permission undisturbed.
Key Takeaways
- Future Wales Policies 17 and 18 permit a decision-maker to assess whether landscape or other harm is unacceptable before weighing that harm against renewable-energy and socioeconomic benefits.
- A statement of common ground removing a statutory consultee’s objection does not necessarily eliminate its underlying assessment of harm, particularly where the ultimate planning balance is expressly left to the decision-maker.
- Courts reviewing planning decisions will read inspectors’ reports fairly and as a whole, rather than dissecting terminology or minor errors in search of a legal defect.
Why It Matters
The judgment clarifies how the strong policy support for large-scale renewable energy in Wales operates alongside Policy 18’s environmental safeguards. A presumption favoring wind development, including within pre-assessed areas, does not compel approval where the decision-maker lawfully identifies unacceptable landscape or heritage harm and concludes that the project’s substantial benefits do not outweigh it.
It also illustrates the limited scope of a section 288 review: the court examines legality, fairness, policy interpretation, and adequacy of reasoning, but does not remake the planning merits or substitute its assessment of the competing harms and benefits.