Mill Street City Of Westminster W1S 2AX
Erection of a rear roof extension at third floor level with a sedum roof to the rear; replacement of windows at second floor level with double glazing timber windows; replacement of door and window to the existing rear first floor extension with double glazing timber windows including replacement of roofing; and associated works all in connection with the use of the first to third floor as four flats (Class C3)
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Progress
Application details
- Reference
- 25/05998/FULL
- Local authority
- Westminster
- Postcode
- W1S 2AX
- Ward
- WEW_22
- Application type
- All Other
- Property type
- Flat
Key dates
- Submitted
- 5 Sept 2025
- Validated
- 5 Sept 2025
- Comments close
- 21 Oct 2025
- Target decision
- 31 Oct 2025
- Decided
- 28 Oct 2025
Estimated project value
£390k–£810k
Based on the 240m² of floor area stated in the application, at inner London rates (2026). Source: Checkatrade 2026, loft conversion £1,200-£2,500/m².
Floor area gained: 240m²
Recently sold nearby
Nothing on this postcode has changed hands in the last two years. The sales below are for pricing rather than a lead.
- 4 MILL STREET, LONDON, W1S 2AXOther · Leasehold · Not a standard market sale · £125,0007 years ago16 Apr 2019
Contains HM Land Registry data © Crown copyright and database right 2019. This data is licensed under the Open Government Licence v3.0. Sales are matched by postcode, not by property, so a sale listed here may be a neighbouring address. England and Wales only.
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.
Nearby applications
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- 6, 8 Mill Street Westminster W1S 2AZPendingNext door
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