Rear extensions are the bread and butter of UK planning — and one of the most common reasons homeowners face a refusal. Here's what 8,418 real decisions tell us about rear extension outcomes in Havering.
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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 | Cranham | 8 | 8 | 100.0% |
| 2 | Emerson Park | 5 | 5 | 100.0% |
| 3 | Upminster | 12 | 11 | 91.7% |
| 4 | Hylands & Harrow Lg | 6 | 5 | 83.3% |
| 5 | St Andrew's | 5 | 4 | 80.0% |
| 6 | Marshalls & Rise Pk | 6 | 4 | 66.7% |
| 7 | Havering-atte-Bower | 5 | 3 | 60.0% |
| 8 | Mawneys | 7 | 4 | 57.1% |
A rear extension has a 100.0% approval rate in Cranham but just 57.1% in Mawneys.
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Not all applications are treated equally. Here's how rear extensions stack up against other common projects in Havering.
| Type | Decisions | Rate |
|---|---|---|
| Conservatory | 615 | 83.4% |
| Rear Extension | 8,418 | 81.7% |
| Hip-to-Gable Conversion | 1,674 | 81.3% |
| Wraparound Extension | 502 | 77.9% |
| Dormer | 3,942 | 77.6% |
| Loft Conversion | 2,315 | 77.1% |
| Side Extension | 3,204 | 76.6% |
| Garage / Parking | 4,248 | 76.4% |
| Outbuilding | 1,558 | 76.4% |
| New Build | 951 | 75.7% |
| Front Extension | 1,067 | 75.5% |
| Extension (General) | 709 | 74.8% |
| Annex | 295 | 68.5% |
| Basement | 88 | 64.8% |
| Change of Use (Residential) | 1,249 | 59.6% |
| Flat Conversion | 317 | 59.3% |
| HMO | 182 | 23.1% |
1,539 rear extension applications in Havering 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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