Rear extensions are the bread and butter of UK planning — and one of the most common reasons homeowners face a refusal. Here's what 3,783 real decisions tell us about rear extension outcomes in South Gloucestershire.
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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 | Frenchay And Downend | 7 | 6 | 85.7% |
| 2 | Severn Vale | 5 | 1 | 20.0% |
A rear extension has a 85.7% approval rate in Frenchay And Downend but just 20.0% in Severn Vale.
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Not all applications are treated equally. Here's how rear extensions stack up against other common projects in South Gloucestershire.
| Type | Decisions | Rate |
|---|---|---|
| Conservatory | 452 | 91.8% |
| Rear Extension | 3,783 | 90.8% |
| Wraparound Extension | 412 | 90.3% |
| Basement | 39 | 89.7% |
| Side Extension | 2,420 | 86.9% |
| Front Extension | 632 | 84.5% |
| Outbuilding | 839 | 84.5% |
| Garage / Parking | 2,564 | 83.2% |
| Hip-to-Gable Conversion | 224 | 83.0% |
| Dormer | 1,033 | 82.1% |
| Extension (General) | 572 | 81.8% |
| Change of Use (Residential) | 1,011 | 80.2% |
| Loft Conversion | 691 | 79.5% |
| Annex | 380 | 78.9% |
| Flat Conversion | 42 | 78.6% |
| HMO | 294 | 77.9% |
| New Build | 2,652 | 76.5% |
349 rear extension applications in South Gloucestershire 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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