Extension (General) approval rate in Hertsmere
Hertsmere approved 89.0% of extension (general) applications, based on 73 decisions analysed.
Last updated: June 2026
89.0%
extension (general) approval rate
73
Extension (General) decisions
65
Approved
8
Refused
87.4%
Hertsmere overall
Extension (General) applications are approved at roughly the same rate as the Hertsmere average (87.4%).
How extension (general) compares in Hertsmere
Extension (General)
89.0%
Hertsmere all applications
87.4%
Planning a extension (general) in Hertsmere?
89.0% 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 extension (general) approval rate
✓ Nearest comparable extension (general) decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Free planning check for Hertsmere →
✓ Nearest comparable extension (general) decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Other project types in Hertsmere
86.0%
90.7%
90.7%
86.1%
86.9%
94.7%
88.1%
92.7%
94.2%
83.0%
81.3%
93.5%
100.0%
100.0%