Rear Extension approval rate in Southwark
Southwark approved 92.3% of rear extension applications, based on 3,997 decisions analysed.
Last updated: September 2026
92.3%
rear extension approval rate
3,997
Rear Extension decisions
3,688
Approved
309
Refused
93.0%
Southwark overall
Rear Extension applications are approved at roughly the same rate as the Southwark average (93.0%).
How rear extension compares in Southwark
Rear Extension
92.3%
Southwark all applications
93.0%
Planning a rear extension in Southwark?
92.3% 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 rear extension approval rate
✓ Nearest comparable rear extension decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Free planning check for Southwark →
✓ Nearest comparable rear extension decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Planning professional? PlanningLens runs refusal alerts and evidence packs for Southwark and any other published UK council — see the data services →
Other project types in Southwark
96.1%
94.4%
94.1%
93.2%
88.8%
94.4%
95.4%
92.6%
91.0%
94.3%
92.7%
94.0%
85.1%
95.1%
93.2%