Explore SW1A 1NH in Westminster on an interactive map. See its location and approximate address-derived boundary, then review the exact-postcode facts and wider-area statistics available below. Editable vector files, printed maps and postcode colouring tools are also available. Census 2021 records 28 residents and 13 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 | SW1A 1NH |
| Postcode without spaces | SW1A1NH |
| Status | Active postcode |
| User type | Small user postcode |
| Introduced | January 1980 |
| Directory version | 2026-06 |
| Latitude | 51.5056600 |
| Longitude | -0.1407830 |
| British National Grid | 529,131 E, 180,163 N |
| Country | England |
| Region | London |
| Local authority | Westminster |
| Output Area (2021) | E00023937 |
| 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 | 28 |
| Households | 13 |
| Female residents | 14 |
| Male residents | 14 |
| Residents per household | 2.2 |
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 |
|---|---|---|---|---|
| 4 Oct 2023 | FLAT 5, 26, ST JAMES'S PLACE, LONDON | Flat or maisonette | Leasehold | £4,325,000 |
| 10 Aug 2023 | FLAT 5, 21 - 22, ST JAMES'S PLACE, LONDON | Other | Leasehold | £20,500,000 |
| 4 Jun 2020 | 25, ST JAMES'S PLACE, LONDON | Other | Leasehold | £399,648 |
| 4 Jun 2020 | 25, ST JAMES'S PLACE, LONDON | Other | Freehold | £4,050,000 |
Companies House records whose registered-office address uses this exact postcode.
Private Limited Company
Incorporated 8 March 2023
71122 - Engineering related scientific and technical consulting activities
Private Limited Company
Incorporated 27 September 2022
74901 - Environmental consulting activities
Private Limited Company
Incorporated 25 October 2021
96090 - Other service activities n.e.c.
Private Limited Company
Incorporated 15 February 2016
74901 - Environmental consulting activities
Limited Liability Partnership
Incorporated 20 October 2011
None Supplied
Private Limited Company
Incorporated 9 February 1998
99999 - Dormant Company
Private Limited Company
Incorporated 21 December 1995
68100 - Buying and selling of own real estate
Police.uk street-level incidents recorded across the postcode's containing LSOA in May 2026.
Westminster 018C includes SW1A 1NH 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.
SW1A 1NH is in Westminster, England.
The Census 2021 postcode-level dataset records 28 residents at SW1A 1NH. 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 SW1A 1NH postcode.
Vector Maps supplies editable UK postcode area, district and sector map files. For a vector or printed map focused on the full SW1A 1NH postcode and its approximate address-derived outline, request a custom map.
Explore other full postcodes in the same postcode sector.