Annex approval rate in Brentwood
Brentwood approved 81.6% of annex applications, based on 196 decisions analysed.
Last updated: June 2026
81.6%
annex approval rate
196
Annex decisions
160
Approved
36
Refused
83.9%
Brentwood overall
Annex applications are refused more often than the Brentwood average (83.9%), suggesting the council scrutinises these projects more closely.
How annex compares in Brentwood
Annex
81.6%
Brentwood all applications
83.9%
Planning a annex in Brentwood?
81.6% 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 annex approval rate
✓ Nearest comparable annex decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Free planning check for Brentwood →
✓ Nearest comparable annex decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Other project types in Brentwood
84.1%
83.5%
82.4%
73.9%
83.3%
86.4%
80.9%
71.6%
84.2%
79.9%
77.0%
78.9%
80.8%
67.4%
62.5%