Extension (General) approval rate in Brentwood
Brentwood approved 84.0% of extension (general) applications, based on 449 decisions analysed.
Last updated: September 2026
84.0%
extension (general) approval rate
449
Extension (General) decisions
377
Approved
72
Refused
79.4%
Brentwood overall
Extension (General) applications are approved more often than the Brentwood average (79.4%), suggesting the council is relatively receptive to these projects.
How extension (general) compares in Brentwood
Extension (General)
84.0%
Brentwood all applications
79.4%
Planning a extension (general) in Brentwood?
84.0% 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 Brentwood →
✓ Nearest comparable extension (general) decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Planning professional? PlanningLens runs refusal alerts and evidence packs for Brentwood and any other published UK council — see the data services →
Other project types in Brentwood
83.5%
83.2%
81.8%
73.1%
83.2%
79.8%
86.1%
70.1%
79.7%
76.9%
76.3%
82.0%
81.0%
67.4%
55.6%