Side Extension approval rate in Sutton
Sutton approved 79.3% of side extension applications, based on 3,063 decisions analysed.
Last updated: August 2026
79.3%
side extension approval rate
3,063
Side Extension decisions
2,428
Approved
635
Refused
84.1%
Sutton overall
Side Extension applications are refused more often than the Sutton average (84.1%), suggesting the council scrutinises these projects more closely.
How side extension compares in Sutton
Side Extension
79.3%
Sutton all applications
84.1%
Planning a side extension in Sutton?
79.3% 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 Sutton →
✓ Nearest comparable side extension decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Other project types in Sutton
80.0%
82.9%
83.0%
89.0%
79.8%
78.1%
77.9%
91.6%
82.0%
82.6%
84.5%
84.7%
74.1%
72.4%
79.5%