Extension (General) approval rate in Horsham
Horsham approved 90.4% of extension (general) applications, based on 479 decisions analysed.
Last updated: September 2026
90.4%
extension (general) approval rate
479
Extension (General) decisions
433
Approved
46
Refused
88.0%
Horsham overall
Extension (General) applications are approved more often than the Horsham average (88.0%), suggesting the council is relatively receptive to these projects.
How extension (general) compares in Horsham
Extension (General)
90.4%
Horsham all applications
88.0%
Planning a extension (general) in Horsham?
90.4% 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 extension (general) approval rate
✓ Nearest comparable extension (general) decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Free planning check for Horsham →
✓ Nearest comparable extension (general) decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
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
88.7%
95.2%
96.2%
78.9%
91.8%
89.7%
98.4%
95.9%
97.1%
94.8%
84.6%
91.8%
97.3%
76.7%