Side Extension approval rate in Kensington & Chelsea
Kensington & Chelsea approved 89.6% of side extension applications, based on 661 decisions analysed.
Last updated: August 2026
89.6%
side extension approval rate
661
Side Extension decisions
592
Approved
69
Refused
92.5%
Kensington & Chelsea overall
Side Extension applications are refused more often than the Kensington & Chelsea average (92.5%), suggesting the council scrutinises these projects more closely.
How side extension compares in Kensington & Chelsea
Side Extension
89.6%
Kensington & Chelsea all applications
92.5%
Planning a side extension in Kensington & Chelsea?
89.6% 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 side extension approval rate
✓ Nearest comparable side extension decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Free planning check for Kensington & Chelsea →
✓ Nearest comparable side extension decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Other project types in Kensington & Chelsea
92.2%
89.7%
92.2%
92.8%
86.2%
89.1%
88.9%
90.8%
92.3%
92.6%
90.9%
94.7%
86.0%
88.4%