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Permitted15/02403/FULLBasement

21-22 Haymarket Westminster SW1Y 4DQ

Use of part ground, first, second, third and fourth floors to create 3 residential flats (Class C3); use of basement and ground floors for either Class A1 or Class A2 purposes. Installation of new shopfront and canopy above residential entrance. Installation of air conditioning and associated screening at roof level.

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Progress

Submitted
— completed
Validated
— completed
Consultation
— completed
Target date
— completed
Decided
12 Jun 2015
— completed

Application details

Reference
15/02403/FULL
Local authority
Westminster
Postcode
SW1Y 4DQ
Ward
ST. JAMES'S
Application type
All Other
Property type
Flat

Key dates

Decided
12 Jun 2015

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