Extension (General) approval rate in Westminster
Westminster approved 91.0% of extension (general) applications, based on 3,488 decisions analysed.
Last updated: September 2026
91.0%
extension (general) approval rate
3,488
Extension (General) decisions
3,173
Approved
315
Refused
90.5%
Westminster overall
Extension (General) applications are approved at roughly the same rate as the Westminster average (90.5%).
How extension (general) compares in Westminster
Extension (General)
91.0%
Westminster all applications
90.5%
Planning a extension (general) in Westminster?
91.0% 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 Westminster →
✓ 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 Westminster and any other published UK council — see the data services →
Other project types in Westminster
92.8%
87.6%
88.4%
93.5%
92.6%
86.0%
88.3%
90.0%
96.4%
87.9%
73.6%
93.7%
87.3%
80.0%