Loft conversions change your roofline — and that makes them one of the more closely scrutinised application types. Councils scrutinise visibility, overlooking and street character more closely than for ground-level work. Here's what the data shows in Cambridge.
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Loft conversions face more scrutiny than rear or side extensions because they change the property's profile from the street. Dormers, mansards and hip-to-gable alterations are particularly sensitive.
Two houses on the same street can get different outcomes.
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Not all applications are treated equally. Here's how loft conversions stack up against other common projects in Cambridge.
| Type | Decisions | Rate |
|---|---|---|
| Hip-to-Gable Conversion | 83 | 100.0% |
| Conservatory | 345 | 98.6% |
| Basement | 108 | 98.1% |
| Wraparound Extension | 383 | 97.1% |
| Outbuilding | 799 | 96.9% |
| Dormer | 589 | 96.9% |
| Rear Extension | 2,099 | 96.5% |
| Side Extension | 1,248 | 96.3% |
| Front Extension | 490 | 95.9% |
| Garage / Parking | 1,595 | 95.0% |
| Loft Conversion | 545 | 94.3% |
| Extension (General) | 471 | 93.8% |
| Annex | 226 | 93.8% |
| New Build | 451 | 89.4% |
| HMO | 81 | 85.2% |
| Change of Use (Residential) | 479 | 81.6% |
31 loft conversion applications in Cambridge 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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