Data-backed planning intelligence · 3,200,000+ decisions analysed across England, Scotland, Wales and Northern Ireland

Dormer approval rate in Slough

Slough approved 85.7% of dormer applications, based on 869 decisions analysed.

Last updated: June 2026

85.7%
dormer approval rate
869
Dormer decisions
745
Approved
124
Refused
82.9%
Slough overall

Dormer applications are approved more often than the Slough average (82.9%), suggesting the council is relatively receptive to these projects.

How dormer compares in Slough

Dormer (869 decided)
85.7%
Slough all applications (17,748 decided)
82.9%

Planning a dormer in Slough?

85.7% 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
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Other project types in Slough

Rear Extension (7,156 decided)
83.7%
Side Extension (2,806 decided)
82.5%
Garage / Parking (1,264 decided)
84.0%
Outbuilding (1,251 decided)
82.3%
Loft Conversion (1,158 decided)
87.5%
Wraparound Extension (920 decided)
85.7%
78.4%
Front Extension (660 decided)
74.4%
83.2%
Extension (General) (328 decided)
81.4%
New Build (245 decided)
71.4%
Conservatory (177 decided)
85.9%
HMO (57 decided)
47.4%
Annex (28 decided)
78.6%
Flat Conversion (23 decided)
78.3%
Basement (15 decided)
73.3%
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