Rear extensions are the bread and butter of UK planning — and one of the most common reasons homeowners face a refusal. Here's what 1,288 real decisions tell us about rear extension outcomes in East Cambridgeshire.
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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 | Fordham And Isleham | 5 | 4 | 80.0% |
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 East Cambridgeshire.
| Type | Decisions | Rate |
|---|---|---|
| Conservatory | 206 | 98.1% |
| Rear Extension | 1,288 | 94.2% |
| Front Extension | 211 | 91.9% |
| Side Extension | 626 | 91.9% |
| Wraparound Extension | 96 | 91.7% |
| Extension (General) | 855 | 90.8% |
| Dormer | 163 | 90.2% |
| Outbuilding | 680 | 88.7% |
| Loft Conversion | 197 | 87.8% |
| Garage / Parking | 1,980 | 86.7% |
| Annex | 183 | 85.2% |
| Change of Use (Residential) | 549 | 82.3% |
| New Build | 458 | 77.7% |
75 rear extension applications in East Cambridgeshire 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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