Rear extensions are the bread and butter of UK planning — and one of the most common reasons homeowners face a refusal. Here's what 1,303 real decisions tell us about rear extension outcomes in Calderdale.
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Rear extensions sit in the middle of the pack nationally. They're common enough that councils have clear precedent — but that cuts both ways. If your neighbours have been refused, that precedent works against you too.
| # | Ward | Decisions | Approved | Rate |
|---|---|---|---|---|
| 1 | Skircoat | 7 | 7 | 100.0% |
| 2 | Warley | 7 | 3 | 42.9% |
A rear extension has a 100.0% approval rate in Skircoat but just 42.9% in Warley.
Check your postcode to see what actually happens near your address.
Not all applications are treated equally. Here's how rear extensions stack up against other common projects in Calderdale.
| Type | Decisions | Rate |
|---|---|---|
| Conservatory | 378 | 93.4% |
| Basement | 114 | 92.1% |
| Rear Extension | 1,303 | 89.2% |
| Hip-to-Gable Conversion | 37 | 89.2% |
| Extension (General) | 1,859 | 89.0% |
| Side Extension | 1,193 | 88.7% |
| Wraparound Extension | 177 | 87.6% |
| Annex | 166 | 87.3% |
| Flat Conversion | 31 | 87.1% |
| Outbuilding | 482 | 86.9% |
| Loft Conversion | 158 | 85.4% |
| Front Extension | 143 | 84.6% |
| Garage / Parking | 1,559 | 83.3% |
| Change of Use (Residential) | 840 | 82.6% |
| Dormer | 811 | 81.5% |
| HMO | 41 | 75.6% |
| New Build | 150 | 74.7% |
141 rear extension applications in Calderdale 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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