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Permitted14/09094/FULLBasement

65-66 Frith Street Westminster W1D 3JR

Erection of extensions at rear second and third floor levels and at main roof level to create a new sixth floor in connection with the use of part basement and ground and the first to new sixth floor levels as eleven residential units (Class C3). Use of part lower ground and ground floors as restaurant accommodation (Class A3) and installation of a full height extract duct. Creation of terraces and balconies at second, third, fourth, fifth and sixth floor levels. Installation of plant at rear third floor level with associated screening and at main roof level, photovoltaic cells and alterations to the shopfront, including a bridge over the existing lightwell.

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Map of the site

Progress

Submitted
—
— completed
Validated
—
— completed
Consultation
—
— completed
Target date
—
— completed
Decided
29 Apr 2016
— completed

Application details

Reference
14/09094/FULL
Local authority
Westminster
Postcode
W1D 3JR
Ward
WEST END
Application type
All Other
Property type
Commercial

Key dates

Decided
29 Apr 2016

Estimated project value

£135k–£340k

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: trade estimate.

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.

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.

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