Dormer approval rate in Spelthorne
Spelthorne approved 75.3% of dormer applications, based on 223 decisions analysed.
Last updated: August 2026
75.3%
dormer approval rate
223
Dormer decisions
168
Approved
55
Refused
86.3%
Spelthorne overall
Dormer applications are refused more often than the Spelthorne average (86.3%), suggesting the council scrutinises these projects more closely.
How dormer compares in Spelthorne
Dormer
75.3%
Spelthorne all applications
86.3%
Planning a dormer in Spelthorne?
75.3% 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 Spelthorne →
✓ Nearest comparable dormer decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Other project types in Spelthorne
86.0%
80.2%
85.1%
74.1%
89.2%
90.0%
74.2%
87.1%
87.5%
78.8%
76.5%
42.6%
31.2%
75.0%