Planning Applications in
Horsham
Horsham has a population of approximately 145,000 and is part of the South East region. Search any postcode in Horsham to see recent planning applications near you — including extensions, new builds, demolitions, and change of use applications.
Search Horsham Planning Applications
Search any Horsham postcode above, then save it to a free PlanWatch account so it is ready next time. Paid plans add instant email alerts for new applications near a saved postcode.
Planning Application Types in Horsham
Based on 1375 applications tracked between 2026-01-12 and 2026-09-02.
Full
53% of all applications
Householder
13% of all applications
Demolition
8% of all applications
Tree Works
7% of all applications
Conditions
5% of all applications
Prior Approval
4% of all applications
Horsham Planning Statistics
Data period: 2026-01-12 to 2026-09-02 · Updated 2 September 2026
What PlanWatch Is Tracking in Horsham
PlanWatch currently holds 1,375 Horsham planning records across 768 unique postcode locations, with tracked application dates from 2026-01-12 to 2026-09-02. The most common categories in this dataset are Full (723), Householder (182), Demolition (105).
Use this page to start with a postcode search, then open the official council record for the decision notice, drawings, consultation deadline and any later conditions. That matters because a short application description rarely shows the details neighbours and buyers care about: side windows, roof forms, access, drainage, tree works, opening hours or amended plans.
Planning Battles in Horsham
Notable planning controversies and disputes that have shaped development in the Horsham area.
Denne Hill 800-Home Development
2025Planning Inspectorate granted outline permission for 800 homes on former Horsham Golf and Fitness site between Southwater and Horsham. Council had refused in May 2024 citing unsustainable location. Inspector 'blasted' council's 'lamentable' 2.2-year housing land supply. Judicial review rejected in October 2025. Over 3,500 petition signatures from Keep Denne Hill Green campaign.
Why this matters: This shows how low housing supply leads to successful appeals on unallocated sites. Monitoring supply levels predicts vulnerability to speculative applications.
Local Plan Withdrawal
2025Horsham's Local Plan 2023-2040 faced withdrawal after Inspector found failure in 'Duty to Cooperate'. Failed to adequately engage neighbouring authorities on cross-boundary housing needs (Crawley's unmet 7,500 home demand). Also failed on water neutrality solutions in Sussex North Supply Zone. Council recommended withdrawal in July 2025.
Why this matters: Local Plan failures leave district without up-to-date plan, making it vulnerable to speculative applications. Monitoring would track plan progress and inspector concerns.
Thakeham 247-Home Blocked
2025Council successfully blocked plans for 247 homes in Thakeham parish. Planning Inspectorate dismissed developer's appeal, citing incompatibility with local character and infrastructure deficits. Rare win for council against speculative growth.
Why this matters: This shows successful resistance is possible. Monitoring would identify similar opportunities where appeals might fail.
Major Developments to Watch in Horsham
Large-scale projects and developments that are shaping the future of Horsham.
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What Makes Planning in Horsham Different
- Sussex North Water Supply Zone - water neutrality requirements since 2021
- South Downs National Park proximity
- Neighbourhood plans highly influential
- Green belt protection around villages
Critically low housing land supply (2.2 years - 'lamentable' per inspector). Water neutrality blocks significant development. Strong neighbourhood plan protection. Conservative council facing pressure from central government.
Key Areas in Horsham
Affluent West Sussex district with significant green belt. Strong communities with neighbourhood plans. Water neutrality requirements in Sussex North Supply Zone constrain development.
Recent Planning Applications in Horsham
Latest applications submitted to Horsham council.
Subdividing of existing plot and creation of a two storey, three bedroom dwelling. Demolition of garage and creation of vehicle access.
35 Churchill Avenue Horsham West Sussex RH12 2JP
Surgery 1 x Norway Maple.
Old School House Church Street West Chiltington West Sussex RH20 2JW
Erection of an additional storey to the rear to provide two new dwellings (Class C3), with associated external alterations.
30 West Street Horsham West Sussex RH12 1PB
Demolition of 6no. existing agricultural buildings within the wider farm holding. Conversion of the existing brick stables into 5no. residential dwellings; erection of a new commercial building and erection of a new Sussex barn with landscaping and associated infrastructure works.
Annexe Clockhouse Farmhouse Stonehouse Lane Cowfold Horsham West Sussex RH13 8DL
Erection of a single storey rear extension (Certificate of Lawfulness - Proposed).
5 Fletchers Close Horsham West Sussex RH13 5DF
Official Planning Portal
View and search planning applications directly on the Horsham council website.
Visit Horsham planning portal →Objecting to a Planning Application in Horsham
Horsham Council can only weigh objections that raise a material planning consideration. Personal disputes, loss of a view and property value are not material and are set aside. These are the grounds that do count, with what Horsham's planning officers will expect you to evidence for each.
Then write the objection letter, or check what counts as a material consideration before you start. Objections normally have to reach Horsham Council inside the 21-day consultation window.
Frequently Asked Questions — Horsham Planning
How do I check planning applications in Horsham?
How do I object to a planning application in Horsham?
How long does planning permission take in Horsham?
Can I get alerts for new planning applications in Horsham?
What planning applications don't need permission in Horsham?
Can planning applications affect my property value in Horsham?
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Read the planning guides →Nearby Councils in South East
Explore planning applications in other South East councils.
Planning Guides for Horsham Residents
Do I Need Planning Permission For...?
Specialist Topics
Common Planning Situations
Data Sources
- Planning application data: planning.data.gov.uk
- Horsham council planning portal — public-access.horsham.gov.uk
- Planning Inspectorate (PINS) appeal decisions
- Data last refreshed: 2 September 2026
For local trades
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