Not all planning applications are created equal. The gap between the highest and lowest approval project type in Cardiff is 43.5% — that's the difference between near-certainty and a coin flip. What you build matters as much as where you build it.
See your ward's approval rate and nearby planning decisions — free and instant.
| # | Type | Decisions | Approved | Refused | Rate |
|---|---|---|---|---|---|
| 1 | Dormer | 168 | 155 | 13 | 92.3% |
| 2 | Hip-to-Gable Conversion | 48 | 44 | 4 | 91.7% |
| 3 | Flat Conversion | 22 | 20 | 2 | 90.9% |
| 4 | Annex | 23 | 18 | 5 | 78.3% |
| 5 | Outbuilding | 62 | 48 | 14 | 77.4% |
| 6 | Loft Conversion | 164 | 115 | 49 | 70.1% |
| 7 | Garage / Parking | 249 | 167 | 82 | 67.1% |
| 8 | Extension (General) | 271 | 181 | 90 | 66.8% |
| 9 | Rear Extension | 265 | 167 | 98 | 63.0% |
| 10 | Side Extension | 108 | 64 | 44 | 59.3% |
| 11 | Change of Use (Residential) | 69 | 38 | 31 | 55.1% |
| 12 | Conservatory | 172 | 84 | 88 | 48.8% |
A dormer application has a 92.3% approval rate. Conservatory? Just 48.8%.
Check your postcode to see what actually happens near your address.
792 planning 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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