Use this guide to understand SW1Y 4DG 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 4DG |
| Postcode without spaces | SW1Y4DG |
| Status | Active postcode |
| User type | Small user postcode |
| Introduced | January 1980 |
| Directory version | 2026-06 |
| Latitude | 51.5092100 |
| Longitude | -0.1320200 |
| British National Grid | 529,729 E, 180,574 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.
PRI/LBG/NSC (Private, Limited by guarantee, no share capital, use of 'Limited' exemption)
Incorporated 29 April 2026
85520 - Cultural education
Private Limited Company
Incorporated 13 November 2025
47910 - Retail sale via mail order houses or via Internet
Private Limited Company
Incorporated 1 September 2025
90010 - Performing arts
Private Limited Company
Incorporated 1 September 2025
90010 - Performing arts
Private Limited Company
Incorporated 1 September 2025
90010 - Performing arts
PRI/LBG/NSC (Private, Limited by guarantee, no share capital, use of 'Limited' exemption)
Incorporated 26 June 2025
85520 - Cultural education
Private Limited Company
Incorporated 12 June 2025
85520 - Cultural education
Private Limited Company
Incorporated 9 January 2025
90030 - Artistic creation
Private Limited Company
Incorporated 15 October 2024
96090 - Other service activities n.e.c.
Private Limited Company
Incorporated 28 August 2024
73120 - Media representation services
Private Limited Company
Incorporated 28 August 2024
90030 - Artistic creation
Private Limited Company
Incorporated 22 August 2024
90010 - Performing arts
Police.uk street-level incidents recorded across the postcode's containing LSOA in May 2026.
Westminster 018C includes SW1Y 4DG 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 4DG 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 4DG postcode and its approximate address-derived outline, request a custom map.
Explore other full postcodes in the same postcode sector.