Rear Extension approval rate in Lambeth
Lambeth approved 82.3% of rear extension applications, based on 6,119 decisions analysed.
Last updated: June 2026
82.3%
rear extension approval rate
6,119
Rear Extension decisions
5,034
Approved
1,085
Refused
84.5%
Lambeth overall
Rear Extension applications are refused more often than the Lambeth average (84.5%), suggesting the council scrutinises these projects more closely.
How rear extension compares in Lambeth
Rear Extension
82.3%
Lambeth all applications
84.5%
Planning a rear extension in Lambeth?
82.3% 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 Lambeth →
✓ Nearest comparable rear extension decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Other project types in Lambeth
87.3%
78.0%
84.9%
81.2%
89.3%
85.0%
85.2%
85.2%
83.7%
76.7%
83.2%
87.7%
65.5%
77.5%
76.2%