Use this guide to understand SW1Y 4AR in Westminster. Start with the interactive location and approximate postcode outline, then browse the available facts and local-area indicators. Labels show which figures relate to the exact postcode and which cover a larger geography.
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Create a Custom MapCore details from the ONS Postcode Directory. Geography codes identify the official areas containing this postcode.
| Postcode | SW1Y 4AR |
| Postcode without spaces | SW1Y4AR |
| Status | Active postcode |
| User type | Small user postcode |
| Introduced | January 1980 |
| Directory version | 2026-06 |
| Latitude | 51.5073500 |
| Longitude | -0.1331340 |
| British National Grid | 529,657 E, 180,365 N |
| Country | England |
| Region | London |
| Local authority | Westminster |
| Output Area (2021) | E00023935 |
| LSOA (2021) | E01004736 |
| MSOA (2021) | E02000977 |
| Electoral ward | E05013806 |
| Westminster constituency | E14001172 |
The postcode is assigned to these official political geographies. Names and election results will be added when the ElectionMaps datasets are connected.
A detailed vector map covering a 500 metre radius around the postcode.
Deprivation is published for the postcode's containing Lower Layer Super Output Area, a neighbourhood geography covering more than one postcode.
Companies House records whose registered-office address uses this exact postcode.
Private Limited Company
Incorporated 30 September 2021
47781 - Retail sale in commercial art galleries
Private Limited Company
Incorporated 15 July 2019
09900 - Support activities for other mining and quarrying
Private Limited Company
Incorporated 13 July 2019
09900 - Support activities for other mining and quarrying
Private Limited Company
Incorporated 26 January 2018
93290 - Other amusement and recreation activities n.e.c.
Private Limited Company
Incorporated 16 December 2013
64209 - Activities of other holding companies n.e.c.
Private Limited Company
Incorporated 15 August 2013
62020 - Information technology consultancy activities
Private Limited Company
Incorporated 5 February 2010
09900 - Support activities for other mining and quarrying
Limited Partnership
Incorporated 3 December 2008
None Supplied
Private Limited Company
Incorporated 20 February 2003
64999 - Financial intermediation not elsewhere classified
Private Limited Company
Incorporated 30 March 1989
99999 - Dormant Company
Police.uk street-level incidents recorded across the postcode's containing LSOA in May 2026.
Westminster 018C includes SW1Y 4AR and other nearby postcodes.
| Crime type | Incidents |
|---|---|
| Other theft | 104 |
| Theft from the person | 95 |
| Violence and sexual offences | 79 |
| Anti-social behaviour | 65 |
| Public order | 35 |
| Shoplifting | 20 |
| Drugs | 14 |
| Robbery | 12 |
| Vehicle crime | 11 |
| Possession of weapons | 8 |
| Bicycle theft | 5 |
| Burglary | 2 |
| Other crime | 2 |
Answers use the geographic scope stated with each dataset above.
SW1Y 4AR is in Westminster, England.
The deprivation figures describe the containing Lower Layer Super Output Area, not only the individual postcode.
Vector Maps supplies editable UK postcode area, district and sector map files. For a vector or printed map focused on the full SW1Y 4AR postcode and its approximate address-derived outline, request a custom map.
Explore other full postcodes in the same postcode sector.