Rear extensions are the bread and butter of UK planning — and one of the most common reasons homeowners face a refusal. Here's what 8,905 real decisions tell us about rear extension outcomes in Waltham Forest.
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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 | Hatch Lane & Highams Park North | 8 | 8 | 100.0% |
| 2 | Markhouse | 7 | 7 | 100.0% |
| 3 | Cann Hall | 7 | 6 | 85.7% |
| 4 | Forest | 6 | 5 | 83.3% |
| 5 | Lea Bridge | 5 | 4 | 80.0% |
| 6 | High Street | 5 | 4 | 80.0% |
| 7 | Hoe Street | 12 | 7 | 58.3% |
A rear extension has a 100.0% approval rate in Hatch Lane & Highams Park North but just 58.3% in Hoe Street.
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Not all applications are treated equally. Here's how rear extensions stack up against other common projects in Waltham Forest.
| Type | Decisions | Rate |
|---|---|---|
| Wraparound Extension | 674 | 81.3% |
| Outbuilding | 637 | 80.4% |
| Dormer | 4,728 | 79.7% |
| Hip-to-Gable Conversion | 749 | 79.6% |
| Loft Conversion | 4,720 | 77.9% |
| Extension (General) | 317 | 77.0% |
| Conservatory | 124 | 76.6% |
| Rear Extension | 8,905 | 75.3% |
| Side Extension | 1,386 | 71.5% |
| New Build | 129 | 69.0% |
| Garage / Parking | 1,034 | 66.0% |
| Front Extension | 176 | 63.6% |
| Basement | 186 | 60.2% |
| Change of Use (Residential) | 763 | 55.4% |
| Flat Conversion | 594 | 51.0% |
| Annex | 31 | 35.5% |
| HMO | 424 | 23.1% |
2,200 rear extension applications in Waltham Forest 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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