Horsham’s Growth Hangs in the Balance as Local Plan Rejected

Estimated reading time: 4 minutes

Key Takeaways

• The Planning Inspectorate has *rejected* Horsham’s Local Plan, halting progress toward 17 years of proposed growth.
• Key failings include legal non-compliance, insufficient *duty to cooperate*, and unanswered water-neutrality questions.
• Housing targets for 2023-2040 are now **in limbo**, threatening local affordability.
• Council vows to *challenge* the decision and reopen dialogue with neighbours and stakeholders.
• Next steps will shape the district’s ability to balance development with environmental protection.

Background on the Local Plan

Horsham District’s Local Plan was drafted to steer development from 2023-2040, setting housing targets, encouraging *sustainable growth*, and easing regional pressure from nearby Gatwick and Brighton. The Planning Inspectorate must approve such plans before councils can adopt them. Without approval, local authorities risk ad-hoc development and appeals by developers.

• Planned to deliver 18,700 homes by 2040.
• Aimed to protect biodiversity corridors such as Pulborough Brooks.
• Sought alignment with Sussex-wide water neutrality measures.

“An approved plan is the community’s *shield* against speculative development” — planning consultant Sarah Lowe.

Reasons for Rejection

In an interim findings letter, inspectors highlighted four critical failings:

1. Legal non-compliance with section 22 of the Planning and Compulsory Purchase Act 2004.
2. Lack of *constructive engagement* with neighbouring councils, breaching the duty to cooperate.
3. Insufficient evidence that the plan achieved water neutrality under the Sussex North strategy.
4. Potential harm to protected habitats, notably Pulborough Brooks, if housing numbers remained unchanged.

Inspectors warned that *without robust mitigation*, new homes could outstrip local water supply and compromise sensitive wetlands.

Council’s Response

Horsham District Council immediately lodged a formal complaint, accusing inspectors of “moving goalposts” late in the examination. Council leader Peter Burgess described the verdict as *“deeply frustrating and potentially damaging”* to residents awaiting affordable housing.

• Request for a review of inspectors’ methodology.
• Commitment to fresh talks with West Sussex and Mid Sussex councils.
• Call for government clarity amid ongoing local-government reorganisation.

Implications for Development

With no adopted plan, developers may file *speculative* applications, placing pressure on green-field sites. Affordable housing quotas could also slip, as viability assessments are renegotiated case by case.

Local business group Horsham Unlimited warned: “Delays could deter inward investment and stall job creation.”

• Potential two-year delay in delivering 4,000 starter homes.
• Uncertainty for infrastructure funding tied to developer contributions.
• Increased planning appeals costing taxpayers an estimated £1 million annually.

Engagement with Stakeholders

Planning experts argue that deeper collaboration will be vital. Neighbouring councils, water authorities, wildlife groups and developers must shape a *shared* vision.

Lessons from elsewhere: Chichester District averted its own plan crisis in 2023 by forming a cross-authority water taskforce—evidence that *genuine cooperation* can unlock inspector support.

Next Steps in the Examination

The council is drafting a revised timetable:

1. June 2025 – Publish options paper addressing inspector feedback.
2. July 2025 – Extraordinary cabinet to approve modifications.
3. August 2025 – Public consultation on amended housing numbers.
4. Q4 2025 – Formal resubmission to the Planning Inspectorate.

Officials hope to regain momentum; yet, as one planner cautioned, *“Every extra month adds pressure on housing supply.”*

FAQs

Why was Horsham’s Local Plan rejected?

Inspectors flagged legal non-compliance, inadequate cooperation with neighbouring councils, unanswered water-neutrality issues and risks to protected habitats.

Does rejection stop all development immediately?

No. Applications can still be submitted, but without an adopted plan the council has less control, potentially leading to more appeals and piecemeal growth.

How long will a revised plan take to approve?

If Horsham meets the inspector’s requirements swiftly, approval could arrive in late 2025 or early 2026, though delays are common.

Will housing targets be reduced?

Possibly. The council may lower numbers or redistribute sites to address water constraints and environmental impact.

Where can residents follow updates?

Regular updates will appear on the Horsham District Council Local Plan portal and at public meetings advertised on the council website.