Dormer approval rate in Cardiff
Cardiff approved 85.6% of dormer applications, based on 216 decisions analysed.
Last updated: June 2026
85.6%
dormer approval rate
216
Dormer decisions
185
Approved
31
Refused
81.7%
Cardiff overall
Dormer applications are approved more often than the Cardiff average (81.7%), suggesting the council is relatively receptive to these projects.
How dormer compares in Cardiff
Dormer
85.6%
Cardiff all applications
81.7%
Planning a dormer in Cardiff?
85.6% 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
67.9%
66.9%
66.6%
70.2%
49.4%
65.6%
77.8%
84.1%
82.8%
78.6%
88.5%
83.3%
71.4%
77.8%