Introduction
A bold legal move by Horsham District Council seeks to overturn last year’s approval for an 800-home scheme at the former Horsham Golf Club in Southwater. The judicial review, lodged at the High Court, questions whether national planning policy was applied correctly and whether enough weight was given to the community-driven Southwater Neighbourhood Plan adopted in 2021.
Background of the Planning Decision
In July 2025 the Secretary of State, following advice from the Planning Inspectorate, granted outline consent for up to 800 homes, community facilities and extensive green space. This overruled the council’s earlier refusal, which had highlighted concerns over location and inadequate sustainable transport.
- Initial refusal by the council in 2024 on sustainability grounds.
- Developer appeal led to a public inquiry, culminating in ministerial sign-off.
- Site lies just outside the village boundary set in the Southwater Neighbourhood Plan.
Reasons for the Judicial Review
Misapplication of national policy: The council argues the Inspector made “significant legal errors” when interpreting the National Planning Policy Framework, especially around prioritising sustainable locations.
Neighbourhood Plan status: Treating the 2021 plan as “out of date,” says the council, undermines the democratic purpose of neighbourhood planning.
Sustainable transport: Collaboration with Active Travel England revealed gaps in “active travel” provision; cycling routes and bus connectivity were judged insufficient.
Stakeholder Perspectives
“It is vital for public confidence in the planning system that such matters are scrutinised by the Courts.” — Cllr Ruth Fletcher, Cabinet Member for Planning and Infrastructure.
Southwater Parish Council has publicly backed the challenge, citing independent legal advice that the Inspector misread key policy tests. Planning lawyers suggest the case could clarify how future inspectors balance local and national priorities.
Potential Implications
- Could raise the bar for sustainable transport evidence in large schemes.
- May strengthen the legal weight of neighbourhood plans in appeal decisions.
- A precedent here would resonate with other authorities struggling to balance housing need and infrastructure capacity.
Next Steps
The High Court has accepted the claim; a full hearing date is expected later this year. In the meantime, the Planning Inspectorate has declined further comment, citing ongoing litigation.
Conclusion
The Horsham judicial review sits at the intersection of community planning, ministerial discretion and sustainability imperatives. Whatever the verdict, it will reverberate across planning departments nationwide, shaping how neighbourhood plans and sustainable transport are weighed in future housing appeals.