Rear extensions are the bread and butter of UK planning — and one of the most common reasons homeowners face a refusal. Here's what 423 real decisions tell us about rear extension outcomes in Harlow.
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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 | Passmores North | 5 | 5 | 100.0% |
| 2 | Little Parndon West | 5 | 5 | 100.0% |
| 3 | Great Parndon North | 5 | 4 | 80.0% |
A rear extension has a 100.0% approval rate in Passmores North but just 80.0% in Great Parndon North.
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Not all applications are treated equally. Here's how rear extensions stack up against other common projects in Harlow.
| Type | Decisions | Rate |
|---|---|---|
| Dormer | 49 | 100.0% |
| Side Extension | 161 | 100.0% |
| Loft Conversion | 41 | 100.0% |
| Front Extension | 67 | 100.0% |
| Conservatory | 37 | 100.0% |
| Change of Use (Residential) | 109 | 100.0% |
| Annex | 21 | 100.0% |
| Garage / Parking | 427 | 99.3% |
| Extension (General) | 97 | 99.0% |
| New Build | 105 | 99.0% |
| Outbuilding | 94 | 98.9% |
| Rear Extension | 423 | 98.8% |
| HMO | 21 | 95.2% |
5 rear extension applications in Harlow 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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