1 Upper Wimpole Street Westminster W1G 6LA
Use of ground floor as self-contained residential flat (Class C3); excavation of a basement beneath the rear courtyard and outbuilding and associated extension of the lightwell, mansard extension to the outbuilding roof incorporating dormers and rooflights, all to provide a medical use (Class D1) on rear basement and ground floors with new access from Weymouth Street.
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Progress
Application details
- Reference
- 17/03107/FULL
- Local authority
- Westminster
- Postcode
- W1G 6LA
- Ward
- MARYLEBONE HIGH STREET
- Application type
- All Other
- Property type
- Flat
Key dates
- Decided
- 18 Sept 2017
Estimated project value
£37k–£100k
Typical UK cost for this job type, at inner London rates (2026). Estimated from the proposal description — planning applications do not state build cost. Source: Checkatrade 2026 loft conversion cost guide.
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.
- BASEMENT FLAT, 1 UPPER WIMPOLE STREET, LONDON, W1G 6LATerraced · £6,800,00013 years ago16 Sept 2013
Contains HM Land Registry data © Crown copyright and database right 2013. 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.
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