54 Wimpole Street Westminster W1G 8YH
Use of the basement from residential (Class C3) to medical use (Class D1). Partial demolition of existing basement extension and erection of a new single storey rear basement extension to provide additional medical accommodation (Class D1). Removal of rear ground floor structure and erection of a single storey rear ground floor extension. Relocation of rooflight over rear basement accommodation. Installation of three air conditioning units within an enclosure in the courtyard area at rear basement level. Use of the mews building for residential purposes (Class C3) including a new second floor roof extension. External alterations to the mews building including a new pavement light on Browning Mews. Associated internal alterations to 54 Wimpole Street. [Site includes 8 Browning Mews]. [Part of a land use swap with 7 Dunstable Mews].
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Progress
Application details
- Reference
- 08/11082/FULL
- Local authority
- Westminster
- Postcode
- W1G 8YH
- Ward
- MARYLEBONE HIGH STREET
- Application type
- All Other
- Property type
- House
Key dates
- Decided
- 28 Apr 2009
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
New owners, recently moved in. First work on a house usually follows within months of completing. 8 recent sales are listed below.
- APARTMENT 8, 103 - 105 HARLEY STREET, LONDON, W1G 6AJFlat or maisonette · Leasehold · £685,5002 months ago25 Jun 2026
- 10 DEVONSHIRE MEWS WEST, LONDON, W1G 6QETerraced · £5,250,0003 months ago19 Jun 2026
- 4 DEVONSHIRE CLOSE, LONDON, W1G 7BAOther · Not a standard market sale · £7,8133 months ago27 May 2026
- FLAT 13, 40 - 41 WIMPOLE STREET, LONDON, W1G 8ABFlat or maisonette · Leasehold · £1,000,0004 months ago30 Apr 2026
- FLAT 2, 36 DEVONSHIRE PLACE, LONDON, W1G 6JRFlat or maisonette · Leasehold · £1,450,0004 months ago23 Apr 2026
- FLAT 47, BASILDON COURT, 28 DEVONSHIRE STREET, LONDON, W1G 6PRFlat or maisonette · Leasehold · £700,0006 months ago19 Mar 2026
- FLAT 49, 2 MANSFIELD STREET, LONDON, W1G 9NFFlat or maisonette · Leasehold · £2,140,7507 months ago30 Jan 2026
- FLAT 12, DUDLEY HOUSE WESTMORELAND STREET, LONDON, W1G 8PWFlat or maisonette · Leasehold · £1,675,0007 months ago23 Jan 2026
Homes here go for about £1,450,000 — the median of the last 7 market sales in W1G (the wider postcode district), £685,500 to £5,250,000.
Contains HM Land Registry data © Crown copyright and database right 2026. 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
- 54 Wimpole Street Westminster W1G 8YJPermittedNext door
- 54 Wimpole Street Westminster W1G 8YJPermittedNext door
- 54 Wimpole Street Westminster W1G 8YJPermittedNext door
- 53 Wimpole Street Westminster W1G 8YHPendingNext door
- 53 Wimpole Street Westminster W1G 8YHPendingNext door
- 53 Wimpole Street Westminster W1G 8YHPermittedNext door