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Permitted08/10815/FULLLoft conversion

68-74 Wigmore Street 15, 17-19 Marylebone Lane Westminster W1U 2SJ

Demolition of mansard roof and behind the retained facades of 68-74 Wigmore Street and 13 Marylebone Lane, and complete demolition of the remainder of the buildings on the site; new building of basement, ground and three upper floors plus new mansard roof storey where facades are retained; rooftop plant room; use of basement and ground floors as retail (Class A1) and/or financial and professional services (Class A2) and/or restaurant (Class A3) (15-19 Marylebone Lane only) and offices (Class B1) at first to fourth floor levels with a ground floor entrance and lobby; green roof at fourth floor level; public art.

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Progress

Submitted
— completed
Validated
— completed
Consultation
— completed
Target date
— completed
Decided
26 Apr 2010
— completed

Application details

Reference
08/10815/FULL
Local authority
Westminster
Postcode
W1U 2SJ
Ward
MARYLEBONE HIGH STREET
Application type
All Other
Property type
Commercial

Key dates

Decided
26 Apr 2010

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.

Homes here go for about £1,175,000 — the median of the last 5 market sales in W1U (the wider postcode district), £685,000 to £1,500,000.

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