Loft Conversion approval rate in Cardiff
Cardiff approved 70.2% of loft conversion applications, based on 205 decisions analysed.
Last updated: June 2026
70.2%
loft conversion approval rate
205
Loft Conversion decisions
144
Approved
61
Refused
81.7%
Cardiff overall
Loft Conversion applications are refused more often than the Cardiff average (81.7%), suggesting the council scrutinises these projects more closely.
How loft conversion compares in Cardiff
Loft Conversion
70.2%
Cardiff all applications
81.7%
Planning a loft conversion in Cardiff?
70.2% 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
67.9%
66.9%
66.6%
85.6%
49.4%
65.6%
77.8%
84.1%
82.8%
78.6%
88.5%
83.3%
71.4%
77.8%