HILLINGDON Hillingdon
Single-storey rear and side extension, new front porch, addition of a first floor with flat-roof and gable dormer windows, and alteration of the main front roof from hipped to gable-end with a raised ridge height (not over the single storey side extension).
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Progress
Application details
- Reference
- 20886/APP/2026/2148
- Local authority
- Hillingdon
- Ward
- COLHAM & COWLEY
- Application type
- Householder
- Property type
- Flat
Key dates
- Submitted
- 3 Sept 2026
- Validated
- 3 Sept 2026
- Comments close
- 14 Oct 2026
- Target decision
- 29 Oct 2026
Estimated project value
£155k–£320k
Based on the 129m² of floor area stated in the application, at UK average rates (2026). Source: Checkatrade 2026, loft conversion £1,200-£2,500/m².
Floor area gained: 128.6m² · 3 additional bedrooms
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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