Rear Extension approval rate in Lambeth
Lambeth approved 82.2% of rear extension applications, based on 5,992 decisions analysed.
Last updated: March 2026
82.2%
rear extension approval rate
5,992
Rear Extension decisions
4,925
Approved
1,067
Refused
84.6%
Lambeth overall
Rear Extension applications are refused more often than the Lambeth average (84.6%), suggesting the council scrutinises these projects more closely.
How rear extension compares in Lambeth
Rear Extension
82.2%
Lambeth all applications
84.6%
Planning a rear extension in Lambeth?
82.2% get approved — but the odds vary by street. Your Pro Report 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
Get Lambeth Pro Report — £79
✓ Nearest comparable rear extension decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Less than one set of revised drawings.
Other project types in Lambeth
87.4%
78.2%
85.0%
81.4%
89.5%
84.9%
85.6%
85.1%
83.3%
76.8%
82.7%
87.2%
66.4%
77.5%
75.4%