Rear extensions are the bread and butter of UK planning — and one of the most common reasons homeowners face a refusal. Here's what 1,128 real decisions tell us about rear extension outcomes in Stevenage.
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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 | Chells | 9 | 9 | 100.0% |
| 2 | Old Town | 6 | 6 | 100.0% |
| 3 | Roebuck | 7 | 7 | 100.0% |
| 4 | Woodfield | 8 | 7 | 87.5% |
| 5 | Bedwell | 7 | 6 | 85.7% |
| 6 | Symonds Green | 5 | 4 | 80.0% |
| 7 | Shephall | 9 | 7 | 77.8% |
A rear extension has a 100.0% approval rate in Chells but just 77.8% in Shephall.
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Not all applications are treated equally. Here's how rear extensions stack up against other common projects in Stevenage.
| Type | Decisions | Rate |
|---|---|---|
| Outbuilding | 75 | 98.7% |
| Conservatory | 178 | 98.3% |
| Extension (General) | 95 | 96.8% |
| Front Extension | 445 | 95.5% |
| Rear Extension | 1,128 | 93.7% |
| Change of Use (Residential) | 264 | 93.2% |
| Side Extension | 436 | 91.5% |
| Wraparound Extension | 91 | 91.2% |
| Loft Conversion | 101 | 91.1% |
| Garage / Parking | 374 | 90.9% |
| Dormer | 126 | 90.5% |
| HMO | 28 | 89.3% |
| New Build | 169 | 86.4% |
| Annex | 26 | 69.2% |
71 rear extension applications in Stevenage 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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