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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
— completed
Validated
29 Aug 2025
— completed
Consultation
8 Oct 2025
— completed
Target date
21 Apr 2026
— completed
Decided
1 Jun 2026
— completed

Application 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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