Dormer approval rate in Cardiff
Cardiff approved 84.0% of dormer applications, based on 275 decisions analysed.
Last updated: August 2026
84.0%
dormer approval rate
275
Dormer decisions
231
Approved
44
Refused
82.4%
Cardiff overall
Dormer applications are approved at roughly the same rate as the Cardiff average (82.4%).
How dormer compares in Cardiff
Dormer
84.0%
Cardiff all applications
82.4%
Planning a dormer in Cardiff?
84.0% 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 Cardiff →
✓ Nearest comparable dormer decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Other project types in Cardiff
72.8%
68.7%
67.9%
72.2%
72.1%
52.4%
77.1%
84.0%
80.0%
86.1%
78.1%
89.3%
84.6%
75.0%