Loft conversions change your roofline — and that makes them one of the more closely scrutinised application types. Councils scrutinise visibility, overlooking and street character more closely than for ground-level work. Here's what the data shows in Cardiff.
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Loft conversions face more scrutiny than rear or side extensions because they change the property's profile from the street. Dormers, mansards and hip-to-gable alterations are particularly sensitive.
| # | Ward | Decisions | Approved | Rate |
|---|---|---|---|---|
| 1 | RHIWBINA | 5 | 5 | 100.0% |
Two houses on the same street can get different outcomes.
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Not all applications are treated equally. Here's how loft conversions stack up against other common projects in Cardiff.
| Type | Decisions | Rate |
|---|---|---|
| Dormer | 168 | 92.3% |
| Hip-to-Gable Conversion | 48 | 91.7% |
| Flat Conversion | 22 | 90.9% |
| Annex | 23 | 78.3% |
| Outbuilding | 62 | 77.4% |
| Loft Conversion | 164 | 70.1% |
| Garage / Parking | 249 | 67.1% |
| Extension (General) | 271 | 66.8% |
| Rear Extension | 265 | 63.0% |
| Side Extension | 108 | 59.3% |
| Change of Use (Residential) | 69 | 55.1% |
| Conservatory | 172 | 48.8% |
49 loft conversion applications in Cardiff have been refused since 2020. Many of those homeowners had already paid for drawings and application fees. A £79 report shows you what gets approved — and what gets refused — near your property.
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