Explore EC3M 4BY in City of London 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.
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Create a Custom MapCore details from the ONS Postcode Directory. Geography codes identify the official areas containing this postcode.
| Postcode | EC3M 4BY |
| Postcode without spaces | EC3M4BY |
| Status | Active postcode |
| User type | Small user postcode |
| Introduced | January 1980 |
| Directory version | 2026-06 |
| Latitude | 51.5130400 |
| Longitude | -0.0777170 |
| British National Grid | 533,486 E, 181,097 N |
| Country | England |
| Region | London |
| Local authority | City of London |
| Output Area (2021) | E00190458 |
| LSOA (2021) | E01032739 |
| MSOA (2021) | E02000001 |
| Electoral ward | E05009310 |
| 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 13 January 2026
82990 - Other business support service activities n.e.c.
Private Limited Company
Incorporated 2 September 2025
64999 - Financial intermediation not elsewhere classified
Private Limited Company
Incorporated 7 August 2025
64209 - Activities of other holding companies n.e.c.
Private Limited Company
Incorporated 7 July 2025
64209 - Activities of other holding companies n.e.c.
Private Limited Company
Incorporated 21 June 2023
68209 - Other letting and operating of own or leased real estate
Private Limited Company
Incorporated 21 June 2023
68209 - Other letting and operating of own or leased real estate
Public Limited Company
Incorporated 23 November 2022
66290 - Other activities auxiliary to insurance and pension funding
Private Limited Company
Incorporated 27 August 2020
66290 - Other activities auxiliary to insurance and pension funding
Private Limited Company
Incorporated 27 July 2020
64205 - Activities of financial services holding companies
Private Limited Company
Incorporated 30 April 2020
47910 - Retail sale via mail order houses or via Internet
Private Limited Company
Incorporated 22 November 2019
64209 - Activities of other holding companies n.e.c.
Public Limited Company
Incorporated 3 September 2019
66290 - Other activities auxiliary to insurance and pension funding
Police.uk street-level incidents recorded across the postcode's containing LSOA in May 2026.
City of London 001F includes EC3M 4BY and other nearby postcodes.
| Crime type | Incidents |
|---|---|
| Other theft | 97 |
| Shoplifting | 91 |
| Violence and sexual offences | 88 |
| Theft from the person | 66 |
| Public order | 39 |
| Burglary | 19 |
| Robbery | 18 |
| Bicycle theft | 15 |
| Drugs | 13 |
| Criminal damage and arson | 12 |
| Vehicle crime | 9 |
| Anti-social behaviour | 6 |
| Possession of weapons | 2 |
| Other crime | 1 |
Answers use the geographic scope stated with each dataset above.
EC3M 4BY is in City of London, 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 EC3M 4BY postcode and its approximate address-derived outline, request a custom map.
Explore other full postcodes in the same postcode sector.