Rear Extension approval rate in Lewisham
Lewisham approved 75.5% of rear extension applications, based on 4,713 decisions analysed.
Last updated: June 2026
75.5%
rear extension approval rate
4,713
Rear Extension decisions
3,558
Approved
1,155
Refused
82.9%
Lewisham overall
Rear Extension applications are refused more often than the Lewisham average (82.9%), suggesting the council scrutinises these projects more closely.
How rear extension compares in Lewisham
Rear Extension
75.5%
Lewisham all applications
82.9%
Planning a rear extension in Lewisham?
75.5% 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
Other project types in Lewisham
83.1%
83.7%
84.1%
79.3%
81.5%
82.5%
76.0%
82.0%
82.8%
61.3%
84.6%
83.2%
88.8%
68.8%
60.7%