Extension (General) approval rate in Merton
Merton approved 86.6% of extension (general) applications, based on 874 decisions analysed.
Last updated: March 2026
86.6%
extension (general) approval rate
874
Extension (General) decisions
757
Approved
117
Refused
85.9%
Merton overall
Extension (General) applications are approved at roughly the same rate as the Merton average (85.9%).
How extension (general) compares in Merton
Extension (General)
86.6%
Merton all applications
85.9%
Planning a extension (general) in Merton?
86.6% get approved — but the odds vary by street. Your Pro Report shows exactly what gets approved and refused near your property.
✓ Your ward's extension (general) approval rate
✓ Nearest comparable extension (general) decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Get Merton Pro Report — £79
✓ Nearest comparable extension (general) decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Less than one set of revised drawings.
Other project types in Merton
81.5%
89.9%
88.3%
88.7%
84.9%
87.7%
86.8%
82.8%
82.8%
91.3%
88.5%
93.1%
78.2%
55.7%
79.2%