Rear extensions are the bread and butter of UK planning — and one of the most common reasons homeowners face a refusal. Here's what 7,559 real decisions tell us about rear extension outcomes in Kingston.
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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 | St Mark's & Seething Wells | 8 | 8 | 100.0% |
| 2 | Coombe Vale | 5 | 5 | 100.0% |
| 3 | Tudor | 9 | 9 | 100.0% |
| 4 | Chessington South & Malden Rushett | 7 | 7 | 100.0% |
| 5 | Coombe Hill | 8 | 7 | 87.5% |
| 6 | New Malden Village | 10 | 8 | 80.0% |
| 7 | Motspur Park & Old Malden East | 5 | 4 | 80.0% |
A rear extension has a 100.0% approval rate in St Mark's & Seething Wells but just 80.0% in Motspur Park & Old Malden East.
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Not all applications are treated equally. Here's how rear extensions stack up against other common projects in Kingston.
| Type | Decisions | Rate |
|---|---|---|
| Basement | 751 | 81.2% |
| Conservatory | 865 | 80.6% |
| Wraparound Extension | 782 | 80.6% |
| Extension (General) | 853 | 80.5% |
| Garage / Parking | 4,767 | 78.6% |
| Outbuilding | 1,229 | 77.5% |
| Side Extension | 3,506 | 77.1% |
| New Build | 2,824 | 77.1% |
| Hip-to-Gable Conversion | 1,839 | 76.9% |
| Annex | 144 | 76.4% |
| Dormer | 3,917 | 76.2% |
| Change of Use (Residential) | 1,424 | 76.2% |
| Rear Extension | 7,559 | 75.6% |
| Loft Conversion | 4,065 | 75.4% |
| Front Extension | 774 | 75.2% |
| HMO | 159 | 73.0% |
| Flat Conversion | 409 | 63.8% |
1,848 rear extension applications in Kingston 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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