Rear extensions are the bread and butter of UK planning — and one of the most common reasons homeowners face a refusal. Here's what 2,000 real decisions tell us about rear extension outcomes in Canterbury.
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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 | Chestfield | 6 | 6 | 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 rear extensions stack up against other common projects in Canterbury.
| Type | Decisions | Rate |
|---|---|---|
| Wraparound Extension | 244 | 98.4% |
| Conservatory | 430 | 98.4% |
| Side Extension | 1,193 | 97.2% |
| Rear Extension | 2,000 | 96.2% |
| Annex | 95 | 95.8% |
| Front Extension | 209 | 95.7% |
| Outbuilding | 586 | 94.7% |
| Hip-to-Gable Conversion | 53 | 94.3% |
| Garage / Parking | 1,471 | 94.2% |
| Extension (General) | 364 | 94.2% |
| Dormer | 655 | 93.6% |
| Loft Conversion | 230 | 91.3% |
| Basement | 29 | 89.7% |
| New Build | 124 | 86.3% |
| Flat Conversion | 36 | 83.3% |
| Change of Use (Residential) | 344 | 79.1% |
75 rear extension applications in Canterbury have been refused since 2020. Many of those homeowners had already paid for drawings and application fees. A free, property-specific report shows you what gets approved — and what gets refused — near your property.
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