Side Extension approval rate in Wandsworth
Wandsworth approved 93.4% of side extension applications, based on 3,538 decisions analysed.
Last updated: September 2026
93.4%
side extension approval rate
3,538
Side Extension decisions
3,305
Approved
233
Refused
92.8%
Wandsworth overall
Side Extension applications are approved at roughly the same rate as the Wandsworth average (92.8%).
How side extension compares in Wandsworth
Side Extension
93.4%
Wandsworth all applications
92.8%
Planning a side extension in Wandsworth?
93.4% 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 Wandsworth →
✓ Nearest comparable side extension decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Planning professional? PlanningLens runs refusal alerts and evidence packs for Wandsworth and any other published UK council — see the data services →
Other project types in Wandsworth
92.7%
91.3%
95.3%
94.7%
88.6%
94.0%
92.5%
91.4%
95.8%
82.2%
92.5%
89.5%
87.3%
97.4%
87.1%