Annex approval rate in Westminster
Westminster approved 93.7% of annex applications, based on 111 decisions analysed.
Last updated: August 2026
93.7%
annex approval rate
111
Annex decisions
104
Approved
7
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
93.7%
Westminster all applications
90.8%
Planning a annex in Westminster?
93.7% 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 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%
87.5%
88.4%
93.5%
92.6%
86.1%
88.5%
89.9%
96.4%
88.2%
73.6%
87.0%
79.3%