Rear extensions are the bread and butter of UK planning — and one of the most common reasons homeowners face a refusal. Here's what 293 real decisions tell us about rear extension outcomes in Lewes & Eastbourne.
See your ward's approval rate and nearby planning decisions — free and instant.
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 | Ouse Valley & Ringmer | 10 | 10 | 100.0% |
| 2 | Chailey, Barcombe & Hamsey | 5 | 5 | 100.0% |
| 3 | Seaford East | 5 | 5 | 100.0% |
| 4 | East Saltdean & Telscombe Cliffs | 11 | 10 | 90.9% |
A rear extension has a 100.0% approval rate in Ouse Valley & Ringmer but just 90.9% in East Saltdean & Telscombe Cliffs.
Check your postcode to see what actually happens near your address.
Not all applications are treated equally. Here's how rear extensions stack up against other common projects in Lewes & Eastbourne.
| Type | Decisions | Rate |
|---|---|---|
| Conservatory | 68 | 98.5% |
| Hip-to-Gable Conversion | 35 | 97.1% |
| Loft Conversion | 84 | 96.4% |
| Rear Extension | 293 | 95.9% |
| Dormer | 147 | 95.2% |
| Extension (General) | 74 | 94.6% |
| Front Extension | 55 | 94.5% |
| Side Extension | 164 | 93.9% |
| Wraparound Extension | 20 | 90.0% |
| Garage / Parking | 320 | 89.4% |
| Outbuilding | 95 | 86.3% |
| Annex | 40 | 80.0% |
| New Build | 87 | 79.3% |
| Change of Use (Residential) | 65 | 73.8% |
12 rear extension applications in Lewes & Eastbourne have been refused since 2020. Many of those homeowners had already paid for drawings and application fees. A £79 report shows you what gets approved — and what gets refused — near your property.
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