Horsham Faces Development Chaos as Local Plan Rejected

Estimated reading time: 6 minutes

Key Takeaways

• Planning Inspectorate rejects Horsham District’s draft local plan, citing legal non-compliance and duty-to-cooperate failures.
• Horsham District Council files a formal complaint, calling the decision **“hugely disappointing.”**
• Water neutrality concerns, especially around the Sussex North Offsetting Water Strategy (SNOWS), remain unresolved.
• Housing delivery targets for 2023-2040 now face serious delays, placing infrastructure investment at risk.
• Urgent scrutiny meetings to decide whether to withdraw and completely rewrite the plan.

Introduction

In a dramatic decision, the Planning Inspectorate has rejected Horsham District’s proposed local plan for 2023-2040. The ruling has unleashed a wave of concern from residents, developers, and neighbouring councils alike.

“This outcome is not only unexpected but deeply unsettling for the future of sustainable growth in Horsham,” a council spokesperson noted.

Background on the Local Plan

• The plan outlined new housing, infrastructure, and environmental safeguards for a 17-year period.
• It aimed to align with national targets while preserving Horsham’s unique rural character.
• Draft versions were published for consultation throughout 2022 and 2023, attracting thousands of comments.

Details of the Rejection

Four primary factors led to the rejection:

1. Legal non-compliance – procedural errors made sections of the plan unenforceable.
2. Duty to cooperate – the Inspectorate ruled that collaboration with adjacent councils “was not constructive or active.”
3. Water neutrality – insufficient evidence that SNOWS could offset future consumption.
4. Policy changes – late government guidance imposed higher housing targets that the draft failed to meet.

Council’s Response and Actions

Horsham District Council expressed “huge disappointment” and immediately submitted a formal complaint to the Inspectorate. Emergency scrutiny and cabinet meetings have been scheduled to debate outright withdrawal of the draft.

Implications for Local Development

• Housing delays could push delivery targets back by several years.
• Developers face heightened uncertainty, possibly stalling projects worth millions.
• Community trust in strategic planning may erode, complicating future consultations.

Role of Neighbouring Authorities

The Inspectorate’s report singled out weak collaboration with councils in Crawley, Mid Sussex, and Guildford. Without joint statements on housing allocations or shared infrastructure, the regional planning puzzle remains incomplete.

Sussex North Offsetting Water Strategy (SNOWS)

SNOWS was created to secure water neutrality across the Sussex North supply zone. However, the Inspectorate ruled that the strategy lacked scalable evidence and did not fully quantify offsets for projected growth.

Council’s Complaint and Next Steps

Council leader Jonathan Chowen confirmed that a detailed complaint has been lodged with the Planning & Housing Minister. Options now on the table include:

• Withdrawing the current draft to avoid further costs.
• Re-engaging neighbouring authorities to craft a joint strategy.
• Commissioning fresh environmental evidence, especially on water neutrality.

Planning Policy Considerations

The rejection underscores a broader national conversation about planning reform. Experts suggest:

1. Clarifying the duty to cooperate criteria in forthcoming legislation.
2. Requiring robust, science-based water neutrality frameworks.
3. Aligning local evidence bases with rapidly shifting ministerial targets.

Conclusion

The road ahead for Horsham is uncertain but not insurmountable. By addressing legal gaps, strengthening regional cooperation, and producing credible environmental evidence, the council can restore confidence and craft a plan that truly balances growth with sustainability.

FAQs

Why was the Horsham local plan rejected?

The main reasons were legal non-compliance, insufficient cooperation with neighbouring councils, and unresolved water neutrality evidence.

What happens to existing planning applications?

Applications will now be assessed primarily against the national planning policy framework, introducing potential delays and uncertainty.

Can the council appeal the decision?

The council can lodge a judicial review, but such challenges are expensive and rarely overturn Inspectorate findings.

How long will a revised plan take?

Officials estimate 18–24 months to produce a fully revised plan, assuming smooth cooperation and evidence gathering.

Will housing targets change again?

Yes, targets may be updated in line with upcoming government consultations on planning reform.