Data-backed planning intelligence · 3,840,000+ decisions analysed across England, Scotland, Wales and Northern Ireland

Outbuilding approval rate in Horsham

Horsham approved 89.7% of outbuilding applications, based on 651 decisions analysed.

Last updated: September 2026

89.7%
outbuilding approval rate
651
Outbuilding decisions
584
Approved
67
Refused
88.0%
Horsham overall

Outbuilding applications are approved at roughly the same rate as the Horsham average (88.0%).

How outbuilding compares in Horsham

Outbuilding (651 decided)
89.7%
Horsham all applications (7,438 decided)
88.0%

Planning a outbuilding in Horsham?

89.7% get approved, but the odds vary by street. Your Full Planning Analysis shows exactly what gets approved and refused near your property.

✓ Your ward's outbuilding approval rate
✓ Nearest comparable outbuilding decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
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Planning professional? PlanningLens runs refusal alerts and evidence packs for Horsham and any other published UK council — see the data services →

Other project types in Horsham

Garage / Parking (2,318 decided)
88.7%
Rear Extension (2,270 decided)
95.2%
Side Extension (1,406 decided)
96.2%
New Build (839 decided)
78.9%
73.1%
Dormer (723 decided)
91.8%
Conservatory (488 decided)
98.4%
Extension (General) (479 decided)
90.4%
Front Extension (417 decided)
95.9%
Wraparound Extension (341 decided)
97.1%
Loft Conversion (250 decided)
94.8%
Annex (162 decided)
84.6%
91.8%
Basement (37 decided)
97.3%
Flat Conversion (30 decided)
76.7%
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