Data-backed planning intelligence · 3,840,000+ decisions analysed across England, Scotland, Wales and Northern Ireland

Dormer approval rate in Brentwood

Brentwood approved 73.1% of dormer applications, based on 1,477 decisions analysed.

Last updated: September 2026

73.1%
dormer approval rate
1,477
Dormer decisions
1,080
Approved
397
Refused
79.4%
Brentwood overall

Dormer applications are refused more often than the Brentwood average (79.4%), suggesting the council scrutinises these projects more closely.

How dormer compares in Brentwood

Dormer (1,477 decided)
73.1%
Brentwood all applications (7,771 decided)
79.4%

Planning a dormer in Brentwood?

73.1% 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 dormer approval rate
✓ Nearest comparable dormer decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Free planning check for Brentwood →

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

Rear Extension (3,957 decided)
83.5%
Garage / Parking (3,322 decided)
83.2%
Side Extension (2,251 decided)
81.8%
Front Extension (986 decided)
83.2%
Outbuilding (782 decided)
79.8%
Conservatory (764 decided)
86.1%
Loft Conversion (562 decided)
70.1%
Extension (General) (449 decided)
84.0%
Wraparound Extension (419 decided)
79.7%
76.8%
New Build (338 decided)
76.9%
76.3%
Annex (200 decided)
82.0%
Basement (168 decided)
81.0%
Flat Conversion (43 decided)
67.4%
HMO (18 decided)
55.6%
Check planning approval patterns, Free