Rear extensions are the bread and butter of UK planning — and one of the most common reasons homeowners face a refusal. Here's what 1,425 real decisions tell us about rear extension outcomes in Knowsley.
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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 Gabriels | 5 | 5 | 100.0% |
| 2 | Prescot North | 11 | 11 | 100.0% |
| 3 | Roby | 11 | 11 | 100.0% |
| 4 | Swanside | 10 | 10 | 100.0% |
| 5 | Whiston & Cronton | 6 | 6 | 100.0% |
| 6 | Halewood North | 7 | 7 | 100.0% |
Two houses on the same street can get different outcomes.
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Not all applications are treated equally. Here's how rear extensions stack up against other common projects in Knowsley.
| Type | Decisions | Rate |
|---|---|---|
| Wraparound Extension | 355 | 99.4% |
| Front Extension | 291 | 98.6% |
| Outbuilding | 164 | 98.2% |
| Conservatory | 158 | 97.5% |
| Rear Extension | 1,425 | 97.3% |
| Side Extension | 1,106 | 97.3% |
| Annex | 29 | 96.6% |
| Hip-to-Gable Conversion | 28 | 96.4% |
| Garage / Parking | 722 | 96.0% |
| Extension (General) | 271 | 95.2% |
| Dormer | 169 | 92.9% |
| Loft Conversion | 80 | 92.5% |
| New Build | 651 | 92.2% |
| Change of Use (Residential) | 244 | 90.2% |
38 rear extension applications in Knowsley 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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