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

Dormer approval rate in Windsor & Maidenhead

Windsor & Maidenhead approved 79.1% of dormer applications, based on 776 decisions analysed.

Last updated: September 2026

79.1%
dormer approval rate
776
Dormer decisions
614
Approved
162
Refused
81.8%
Windsor & Maidenhead overall

Dormer applications are refused more often than the Windsor & Maidenhead average (81.8%), suggesting the council scrutinises these projects more closely.

How dormer compares in Windsor & Maidenhead

Dormer (776 decided)
79.1%
Windsor & Maidenhead all applications (4,321 decided)
81.8%

Planning a dormer in Windsor & Maidenhead?

79.1% 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 Windsor & Maidenhead →

Planning professional? PlanningLens runs refusal alerts and evidence packs for Windsor & Maidenhead and any other published UK council — see the data services →

Other project types in Windsor & Maidenhead

Rear Extension (2,322 decided)
84.4%
Garage / Parking (1,702 decided)
82.2%
Side Extension (1,490 decided)
83.5%
Front Extension (655 decided)
84.7%
Outbuilding (622 decided)
78.5%
78.3%
Loft Conversion (301 decided)
87.4%
Extension (General) (223 decided)
83.4%
Conservatory (206 decided)
87.4%
New Build (156 decided)
78.2%
83.6%
Wraparound Extension (125 decided)
76.8%
Basement (107 decided)
87.9%
Annex (50 decided)
64.0%
Flat Conversion (15 decided)
80.0%
HMO (15 decided)
80.0%
Check planning approval patterns, Free