Extension (General) approval rate in Brentwood
Brentwood approved 83.9% of extension (general) applications, based on 422 decisions analysed.
Last updated: March 2026
83.9%
extension (general) approval rate
422
Extension (General) decisions
354
Approved
68
Refused
83.8%
Brentwood overall
Extension (General) applications are approved at roughly the same rate as the Brentwood average (83.8%).
How extension (general) compares in Brentwood
Extension (General)
83.9%
Brentwood all applications
83.8%
Planning a extension (general) in Brentwood?
83.9% 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 Brentwood 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 Brentwood
84.1%
83.3%
82.2%
73.8%
83.4%
86.3%
80.7%
71.7%
79.6%
76.4%
78.8%
81.9%
81.4%
65.8%
62.5%