Estimated reading time: 6 minutes
Key Takeaways
- The Planning Inspectorate has rejected Horsham District’s draft Local Plan (2023-2040) as *legally non-compliant* and **unsound**.
- Key failings include the statutory duty to cooperate, unresolved water-neutrality issues, and a shortfall in housing targets.
- Horsham District Council is seeking *renewed scrutiny* and weighing options such as plan withdrawal or resubmission.
- Neighbouring authorities now face uncertainty over cross-boundary housing and infrastructure projects.
- Potential local-government reorganisation could reshape future planning strategies across West Sussex.
Table of Contents
Background and Timeline
In *July 2024*, Horsham District Council submitted its draft Local Plan to the Planning Inspectorate, aiming to guide development until 2040. Examination hearings opened in December 2024 but stalled within a week when inspectors flagged major concerns.
Key dates were meant to lead to adoption in mid-2025, yet the abrupt halt has left developers, residents, and regional partners in limbo.
Reasons Behind the Rejection
Legal Compliance – Duty to Cooperate: Inspectors ruled that Horsham failed to engage *constructively* with neighbouring councils on housing allocation and shared infrastructure planning.
- Insufficient evidence of joint work with Arun, Mid Sussex, and Crawley authorities.
- Cross-boundary transport strategies remain incomplete.
Water Neutrality: The Sussex North water-supply zone demands *zero additional water abstraction*. The council’s Sussex North Offsetting Water Strategy (SNOWS) was deemed inadequate.
Housing Targets: The plan under-delivered on updated national housing need by roughly 1,800 homes with limited justification.
Council’s Response and Actions
Horsham District Council has lodged a formal complaint with the Planning Inspectorate and opened discussions with the Department for Levelling Up, Housing & Communities.
“We are deeply disappointed. The policy goalposts have shifted since our draft was prepared,” said Councillor Lynn Lambert, Cabinet Member for Planning & Infrastructure.
- Cabinet papers recommend either withdrawing the plan for redraft or seeking a fast-track remedy process.
- Task-forces on *duty to cooperate* and *water neutrality* are being assembled.
Impact on Development & Neighbouring Authorities
Major housing schemes in Southwater and Billingshurst now face *extended uncertainty*, while investors reassess risk. Neighbouring councils reliant on Horsham to absorb unmet housing need may struggle to hit their own delivery targets.
- Infrastructure partnerships for A24 corridor upgrades are paused.
- Local SMEs in construction report delayed tenders and cash-flow pressures.
Legal and Regulatory Framework
Under the Planning and Compulsory Purchase Act 2004, inspectors can recommend plan withdrawal when legal failings arise. While judicial review is possible, such challenges rarely overturn technical findings and can take *12–18 months*.
Future Outlook & Reorganisation
West Sussex is exploring a potential unitary-authority model, which could merge planning responsibilities across districts. If approved, Horsham’s revised plan may need to align with a county-wide spatial strategy, demanding *greater collaboration* on housing and sustainable infrastructure.
Conclusion
The rejection of Horsham’s Local Plan is a setback, yet it offers a critical chance to craft a more resilient, cooperative, and environmentally sound strategy. The next few months will determine whether the council can pivot swiftly enough to restore certainty for residents, developers, and regional partners.
FAQs
Why did the Planning Inspectorate reject the Local Plan?
Inspectors cited failures in the duty to cooperate with neighbouring councils, unresolved water-neutrality measures, and unmet housing targets, rendering the plan legally non-compliant and unsound.
Can Horsham District Council appeal the decision?
The council may seek judicial review, but the process is costly, time-consuming, and rarely overturns detailed technical findings.
What happens to pending planning applications?
Applications will continue under the existing 2015 framework, but the lack of an up-to-date plan may expose decisions to increased scrutiny and potential appeals.
How will neighbouring councils be affected?
Neighbouring authorities relying on Horsham to meet shared housing need may need to revise their own plans or negotiate interim agreements.
When could a revised Local Plan be adopted?
Optimistically, a redrafted plan could reach examination by late 2026, but timelines hinge on resolving water-neutrality and cooperation issues promptly.