Outbuilding approval rate in Westminster
Westminster approved 88.4% of outbuilding applications, based on 586 decisions analysed.
Last updated: March 2026
88.4%
outbuilding approval rate
586
Outbuilding decisions
518
Approved
68
Refused
90.8%
Westminster overall
Outbuilding applications are refused more often than the Westminster average (90.8%), suggesting the council scrutinises these projects more closely.
How outbuilding compares in Westminster
Outbuilding
88.4%
Westminster all applications
90.8%
Planning a outbuilding in Westminster?
88.4% get approved — but the odds vary by street. Your Pro Report 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
Get Westminster Pro Report — £79
✓ Nearest comparable outbuilding decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Less than one set of revised drawings.
Other project types in Westminster
92.8%
91.0%
87.7%
88.6%
93.6%
92.8%
86.1%
96.6%
90.4%
88.6%
77.3%
94.3%
89.8%
82.1%