← Back to search

Permitted13/02113/FULLTwo-storey extension

51-52 Welbeck Street Westminster W1G 9XP

Alterations including rear extension to 52 Welbeck Street and alterations to rear facade, demolition of two storey rear extension fronting Bentinck Mews and erection of replacement extension on basement to second floors, installation of plant at roof level and within pavement vaults all in connection with the use and lateral conversion of the second to fourth floors at 51 Welbeck Street and the second and third floors at 52 Welbeck Street as offices (Class B1).

Find on council portal

Tracking, tags and letters are part of the paid plan. See what it costs. Searching and reading any record stays free.

Progress

Submitted
— completed
Validated
— completed
Consultation
— completed
Target date
— completed
Decided
5 Sept 2013
— completed

Application details

Reference
13/02113/FULL
Local authority
Westminster
Postcode
W1G 9XP
Ward
MARYLEBONE HIGH STREET
Application type
All Other
Property type
Commercial

Key dates

Decided
5 Sept 2013

Estimated project value

£75k–£175k

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: FMB / Checkatrade 2026, £2,000-£2,800/m² over a larger floor area.

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 £1,000,000 — the median of the last 5 market sales in W1G (the wider postcode district), £700,000 to £2,140,750.

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