Dormer approval rate in Spelthorne
Spelthorne approved 75.5% of dormer applications, based on 200 decisions analysed.
Last updated: June 2026
75.5%
dormer approval rate
200
Dormer decisions
151
Approved
49
Refused
86.2%
Spelthorne overall
Dormer applications are refused more often than the Spelthorne average (86.2%), suggesting the council scrutinises these projects more closely.
How dormer compares in Spelthorne
Dormer
75.5%
Spelthorne all applications
86.2%
Planning a dormer in Spelthorne?
75.5% 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
85.6%
79.6%
85.0%
73.3%
88.0%
89.6%
73.2%
87.5%
88.9%
78.4%
43.9%
74.4%
31.2%
72.7%