Rear Extension approval rate in Lewisham
Lewisham approved 75.7% of rear extension applications, based on 4,811 decisions analysed.
Last updated: September 2026
75.7%
rear extension approval rate
4,811
Rear Extension decisions
3,640
Approved
1,171
Refused
82.4%
Lewisham overall
Rear Extension applications are refused more often than the Lewisham average (82.4%), suggesting the council scrutinises these projects more closely.
How rear extension compares in Lewisham
Rear Extension
75.7%
Lewisham all applications
82.4%
Planning a rear extension in Lewisham?
75.7% 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 Lewisham →
✓ 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 Lewisham and any other published UK council — see the data services →
Other project types in Lewisham
83.0%
83.7%
84.1%
79.3%
81.6%
82.5%
75.9%
82.4%
83.1%
61.3%
85.1%
83.6%
88.8%
69.9%
61.5%