Use this guide to understand SW1Y 4JH 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. Census 2021 records 52 residents and 30 households at the exact postcode.
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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 4JH |
| Postcode without spaces | SW1Y4JH |
| Status | Active postcode |
| User type | Small user postcode |
| Introduced | January 1980 |
| Directory version | 2026-06 |
| Latitude | 51.5065500 |
| Longitude | -0.1350540 |
| British National Grid | 529,526 E, 180,273 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.
These Census figures are matched directly to the full postcode, rather than inferred from a wider neighbourhood.
| Residents | 52 |
| Households | 30 |
| Female residents | 20 |
| Male residents | 32 |
| Residents per household | 1.7 |
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.
Land Registry Price Paid Data transactions matched to this exact full postcode.
| Sale date | Address | Property type | Tenure | Price |
|---|---|---|---|---|
| 21 Oct 2024 | FLAT 2, 22, ST JAMES'S SQUARE, LONDON | Other | Leasehold | £2,450,000 |
| 16 Jun 2021 | APARTMENT 6, 23, ST JAMES'S SQUARE, LONDON | Flat or maisonette | Leasehold | £2,000,000 |
Companies House records whose registered-office address uses this exact postcode.
Private Limited Company
Incorporated 28 May 2026
70229 - Management consultancy activities other than financial management
Private Limited Company
Incorporated 14 May 2026
68100 - Buying and selling of own real estate
Private Limited Company
Incorporated 23 April 2026
62012 - Business and domestic software development
Private Limited Company
Incorporated 3 March 2026
68100 - Buying and selling of own real estate
Private Limited Company
Incorporated 6 November 2025
01610 - Support activities for crop production
Private Limited Company
Incorporated 5 September 2025
64209 - Activities of other holding companies n.e.c.
Private Limited Company
Incorporated 2 September 2025
64209 - Activities of other holding companies n.e.c.
Private Limited Company
Incorporated 2 September 2025
64209 - Activities of other holding companies n.e.c.
Private Limited Company
Incorporated 2 September 2025
64209 - Activities of other holding companies n.e.c.
Private Limited Company
Incorporated 2 September 2025
64209 - Activities of other holding companies n.e.c.
Private Limited Company
Incorporated 22 August 2025
46450 - Wholesale of perfume and cosmetics
Private Limited Company
Incorporated 17 February 2025
64209 - Activities of other holding companies n.e.c.
Police.uk street-level incidents recorded across the postcode's containing LSOA in May 2026.
Westminster 018C includes SW1Y 4JH 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 4JH is in Westminster, England.
The Census 2021 postcode-level dataset records 52 residents at SW1Y 4JH. This is an exact postcode count.
The deprivation figures describe the containing Lower Layer Super Output Area, not only the individual postcode.
Yes. The sold-price records shown on this page are Land Registry transactions matched to the full SW1Y 4JH postcode.
Vector Maps supplies editable UK postcode area, district and sector map files. For a vector or printed map focused on the full SW1Y 4JH postcode and its approximate address-derived outline, request a custom map.
Explore other full postcodes in the same postcode sector.