Annex approval rate in Westminster
Westminster approved 94.5% of annex applications, based on 109 decisions analysed.
Last updated: June 2026
94.5%
annex approval rate
109
Annex decisions
103
Approved
6
Refused
90.8%
Westminster overall
Annex applications are approved more often than the Westminster average (90.8%), suggesting the council is relatively receptive to these projects.
How annex compares in Westminster
Annex
94.5%
Westminster all applications
90.8%
Planning a annex in Westminster?
94.5% 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 annex approval rate
✓ Nearest comparable annex decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Free planning check for Westminster →
✓ Nearest comparable annex decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Other project types in Westminster
92.8%
90.9%
87.7%
88.3%
93.4%
92.6%
86.0%
88.5%
96.4%
89.9%
88.3%
74.8%
88.7%
75.9%