EC4M postcode district

Postcodes and sectors

93 of the district's 344 postcodes are live in the ONS Postcode Directory of August 2026. A postcode directory says whether a code is in use, never who is there. The live postcodes centre on 51.51432, -0.09951, which locates the district, not a building.

Companies registered in EC4M

Companies House lists 5,961 companies with a registered office in EC4M; 4,607 of them at addresses shared by 25 or more companies (1 October 2026 snapshot). 25 is the count at which the address lookup reports a company cluster.

Places OS Open Names lists for EC4M

• Greater London
• London
• City of London
• City and County of the City of London
• Islington

Roads filed under EC4M

Named roads first, then numbered ones. A road is filed under one district even where it runs through several, so a street missing here may be listed under a neighbouring district — which is why the address lookup never calls a British street absent. Great Britain has no open register of buildings, so a listed road never means a building on it exists.

• Amen Corner
• Amen Court
• Ave Maria Lane
• Bishop's Court
• Bow Churchyard
• Bow Lane
• Bread Street
• Bride Court
• Cannon Alley
• Creed Lane
• Dean's Court
• Distaff Lane
• Fleet Place
• Friday Street
• Green Arbour Court
• Groveland Court
• Limeburner Lane
• Ludgate Hill
• Ludgate Square
• New Change
• New Change Passage
• Newgate Street
• Old Bailey
• Old Change Court
• Old Fleet Lane
• Old Seacoal Lane
• Pageantmaster Court
• Panyer Alley
• Paternoster Lane
• Paternoster Row
• Paternoster Square
• Queen's Head Passage
• Rose Street
• Stationers Hall Court
• St Georges's Court
• St Paul's Alley
• St Paul's Church Yard
• Warwick Lane
• Warwick Passage
• Warwick Square
• Watling Court
• Watling Street
• Well Court
• White Hart Street

Check an address in EC4M

Check an address in EC4M

The same road list through the API, from the outward code alone:

curl "https://spaw.co/api/v1/address/streets?country=GB&postal_code=EC4M" \
  -H "Authorization: Bearer $SPAW_KEY"

Common questions about EC4M

What does an EC4M postcode tell you?

That the address lies in the EC4M district of the EC (East Central London) postcode area, and the place OS Open Names most often lists first for its postcodes is City of London. The district alone does not place a street: the inward half of the full postcode narrows the address to one of the district's 93 live postcodes.

Where the counts come from

• ons-postcode-directory · version 2026-08 · Contains ONS, OS and Royal Mail data © Crown copyright and database right 2026, Open Government Licence v3.0. Northern Ireland postcodes are excluded: their reuse needs a Land & Property Services licence.
• os-open-names · version 2026-11-01 · Contains OS data © Crown copyright and database right 2026, Open Government Licence v3.0.
• uk-companies-house · version 2026-10-01 · Companies House free company data product, Open Government Licence v3.0

What each figure means, and what a district page never says, is set out in Reading a British postcode district page; the glossary defines a postcode district, a postcode area, a postcode directory and a street register.

Data synced on 2026-11-01: the newest version among the datasets listed above.

Districts nearest EC4M

• EC4V0.2 km
• EC2V0.4 km
• EC4N0.6 km
• EC2R0.6 km
• EC4A0.6 km
• EC4Y0.7 km
• EC2Y0.7 km
• EC4R0.7 km
• EC1A0.8 km
• EC1M0.8 km
• EC1N0.9 km
• EC2N1.0 km
• Every district
• How a British address is written
• Check any address

distance between the districts' centroids