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Permitted18/03531/FULLBasement

130 Jermyn Street 50 Haymarket Westminster SW1Y 4UR

Use of the existing basement and part change of use of ancillary ground floor space at 50 Haymarket to Class A3 restaurant use, installation of internal A3 mezzanine floorspace and other associated external works to ground level and roof including new plant for air conditioning and kitchen ventilation. (Site includes 50 Haymarket)

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Progress

Submitted
— completed
Validated
— completed
Consultation
— completed
Target date
— completed
Decided
29 Mar 2019
— completed

Application details

Reference
18/03531/FULL
Local authority
Westminster
Postcode
SW1Y 4UR
Ward
ST. JAMES'S
Application type
All Other
Property type
Commercial

Key dates

Decided
29 Mar 2019

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

Inside the two years most owners do their major work — kitchens, bathrooms, rewires and lofts. 8 recent sales are listed below.

Homes here go for about £987,500 — the median of the last 6 market sales in SW1Y (the wider postcode district), £450,000 to £4,050,000.

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