Pending28087/APP/2026/1695Submitted last monthAnnexe
HARLINGTON Hillingdon
Erection of an outbuilding in the rear garden for use as a granny annex.
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Progress
Submitted
23 Jul 2026
— completedValidated
23 Jul 2026
— completedConsultation
19 Aug 2026 (target)
— not yet reachedTarget date
17 Sept 2026 (target)
— not yet reachedDecided
—
— not yet reachedApplication details
- Reference
- 28087/APP/2026/1695
- Local authority
- Hillingdon
- Ward
- H/ROW VILLAGES 2022
- Application type
- Householder
- Property type
- House
Key dates
- Submitted
- 23 Jul 2026
- Validated
- 23 Jul 2026
- Comments close
- 19 Aug 2026
- Target decision
- 17 Sept 2026
Estimated project value
£680k–£1130k
Based on the 377m² of floor area stated in the application, at UK average rates (2026). Source: trade estimate, annexe £1,800-£3,000/m².
Floor area gained: 377.2m²
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.