Rear extensions are the bread and butter of UK planning — and one of the most common reasons homeowners face a refusal. Here's what 6,238 real decisions tell us about rear extension outcomes in Wandsworth.
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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 | Furzedown | 5 | 5 | 100.0% |
| 2 | Southfields | 7 | 7 | 100.0% |
| 3 | Tooting Bec | 5 | 4 | 80.0% |
A rear extension has a 100.0% approval rate in Furzedown but just 80.0% in Tooting Bec.
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Not all applications are treated equally. Here's how rear extensions stack up against other common projects in Wandsworth.
| Type | Decisions | Rate |
|---|---|---|
| Conservatory | 108 | 96.3% |
| Flat Conversion | 732 | 96.2% |
| Garage / Parking | 3,411 | 95.5% |
| Basement | 3,218 | 94.7% |
| New Build | 1,727 | 94.1% |
| Side Extension | 3,443 | 93.6% |
| Rear Extension | 6,238 | 92.9% |
| Change of Use (Residential) | 2,001 | 92.9% |
| Extension (General) | 1,644 | 92.6% |
| Wraparound Extension | 285 | 92.6% |
| Outbuilding | 817 | 91.7% |
| Loft Conversion | 4,450 | 91.3% |
| Annex | 60 | 90.0% |
| HMO | 211 | 89.1% |
| Dormer | 1,954 | 88.7% |
| Front Extension | 115 | 87.0% |
| Hip-to-Gable Conversion | 297 | 83.2% |
440 rear extension applications in Wandsworth 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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