Rear extensions are the bread and butter of UK planning — and one of the most common reasons homeowners face a refusal. Here's what 1,327 real decisions tell us about rear extension outcomes in Derry City and Strabane District Council.
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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 | Unknown | 34 | 34 | 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 Derry City and Strabane District Council.
| Type | Decisions | Rate |
|---|---|---|
| Wraparound Extension | 94 | 100.0% |
| Loft Conversion | 23 | 100.0% |
| Basement | 37 | 100.0% |
| Conservatory | 22 | 100.0% |
| Annex | 61 | 100.0% |
| Side Extension | 600 | 99.8% |
| Rear Extension | 1,327 | 99.7% |
| Front Extension | 97 | 99.0% |
| Extension (General) | 1,148 | 99.0% |
| Dormer | 83 | 98.8% |
| Garage / Parking | 1,646 | 98.1% |
| New Build | 339 | 97.6% |
| Outbuilding | 231 | 96.5% |
| Change of Use (Residential) | 552 | 96.0% |
| HMO | 208 | 94.7% |
4 rear extension applications in Derry City and Strabane District Council 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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