Refused17215/APP/2025/2284Submitted over a year agoRear extension
HARLINGTON Hillingdon
Change of use from Small House in Multiple Occupation (HMO) (Class C4) to Large HMO (Sui Generis), including the erection of a first floor rear extension.
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Progress
Submitted
29 Aug 2025
— completedValidated
29 Aug 2025
— completedConsultation
8 Oct 2025
— completedTarget date
21 Apr 2026
— completedDecided
1 Jun 2026
— completedApplication details
- Reference
- 17215/APP/2025/2284
- Local authority
- Hillingdon
- Ward
- HEATHROW VILLAGES
- Application type
- All Other
- Property type
- House
Key dates
- Submitted
- 29 Aug 2025
- Validated
- 29 Aug 2025
- Comments close
- 8 Oct 2025
- Target decision
- 21 Apr 2026
- Decided
- 1 Jun 2026
Estimated project value
£310k–£515k
Based on the 172m² of floor area stated in the application, at UK average rates (2026). Source: FMB / Checkatrade 2026, single-storey extension £1,800-£3,000/m².
Floor area gained: 172m²
Planning constraints
No designations recorded at this location. This is not a formal search — always confirm with the local authority before relying on it.
Designations from planning.data.gov.uk, Open Government Licence v3.0. Indicative only — not a formal local authority search.
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