Loft Conversion approval rate in Cardiff
Cardiff approved 72.2% of loft conversion applications, based on 252 decisions analysed.
Last updated: August 2026
72.2%
loft conversion approval rate
252
Loft Conversion decisions
182
Approved
70
Refused
82.4%
Cardiff overall
Loft Conversion applications are refused more often than the Cardiff average (82.4%), suggesting the council scrutinises these projects more closely.
How loft conversion compares in Cardiff
Loft Conversion
72.2%
Cardiff all applications
82.4%
Planning a loft conversion in Cardiff?
72.2% 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 loft conversion approval rate
✓ Nearest comparable loft conversion decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Free planning check for Cardiff →
✓ Nearest comparable loft conversion decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Other project types in Cardiff
72.8%
68.7%
67.9%
84.0%
72.1%
52.4%
77.1%
84.0%
80.0%
86.1%
78.1%
89.3%
84.6%
75.0%