EC1M 4 postcode sector in the EC1M district

EC1M 4 is a sector of the EC1M district: every postcode that starts EC1M 4. It has 43 postcodes in use, 4 of them large-user postcodes. A large-user postcode is one Royal Mail gives to a single address that gets a lot of mail.

Not sure what a sector is? UK postcode format explained.

Every postcode in the EC1M 4 sector, and which are new since 2020

Map of every postcode in the EC1M 4 sector, by new since 2020 Of the 43 postcodes in the EC1M 4 sector that ONS places, 3 are new since 2020 and 40 were in use before 2020. One postcode lies beyond the edge and is listed under the map. Places named: Clerkenwell, Bunhill. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A201A1 EC1M 4AA: before 2020EC1M 4AN: before 2020EC1M 4AR: before 2020EC1M 4AS: before 2020EC1M 4AY: before 2020EC1M 4BF: before 2020EC1M 4BG: before 2020EC1M 4BH: before 2020EC1M 4BJ: before 2020EC1M 4BU: before 2020EC1M 4DA: before 2020EC1M 4DD: before 2020EC1M 4DE: before 2020EC1M 4DF: before 2020EC1M 4DH: before 2020EC1M 4DL: before 2020EC1M 4DN: before 2020EC1M 4DS: before 2020EC1M 4DT: before 2020EC1M 4DZ: before 2020EC1M 4EB: before 2020EC1M 4EF: before 2020EC1M 4EG: before 2020EC1M 4EH: before 2020EC1M 4HF: before 2020EC1M 4HG: before 2020EC1M 4JN: before 2020EC1M 4NA: before 2020EC1M 4NB: before 2020EC1M 4NH: before 2020EC1M 4NJ: before 2020EC1M 4NN: before 2020EC1M 4NP: before 2020EC1M 4NQ: before 2020EC1M 4NR: before 2020EC1M 4NT: before 2020EC1M 4NU: before 2020EC1M 4AH: new since 2020EC1M 4BS: new since 2020 ClerkenwellBunhill Map of every postcode in the EC1M 4 sector, by new since 2020 Of the 43 postcodes in the EC1M 4 sector that ONS places, 3 are new since 2020 and 40 were in use before 2020. One postcode lies beyond the edge and is listed under the map. Places named: Clerkenwell, Bunhill. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A201 ClerkenwellBunhill
  • New since 2020: 3
  • In use before 2020: 40

Of the 43 postcodes in the EC1M 4 sector that ONS places, 3 are new since 2020 and 40 were in use before 2020.

Each mark is a postcode's centre point as ONS gives it, not a building. Press one to see its postcode and open its page. New since 2020 means it came into use in January 2020 or later. No boundary is drawn. Where marks overlap, the one first in the key is drawn; the counts include every postcode. Names in italics are council wards: we hold no town or village names here.

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026, the centre point of each postcode; when each came into use: the same directory; roads, rivers and built-up areas: Contains OS data © Crown copyright and database right 2026. Drawn by us. Street map: Ordnance Survey, OS Open Zoomstack, Open Government Licence v3.0, drawn with MapLibre. How we use them

The 3 newest postcodes

EC1M 4BSMay 2022EC1M 4AHApril 2022EC1M 4XASeptember 2020

Further out, not drawn

This postcode lies well apart from the rest, so the map is drawn without it to show the rest closer; it is in every count.

EC1M 4XA

What do homes sell for in EC1M 4?

HM Land Registry records one sale of homes in EC1M 4 in the 12 months to August 2026: too few to give a typical price.

  • Flat or maisonette 1 sale, too few to price

Standard sales of homes at market value at the postcodes that start EC1M 4. A typical price is the median, the middle sale, given from 5 sales or more.

How we work this out: house prices by postcode

Source: HM Land Registry Price Paid Data, files dated 28 September 2026. Contains HM Land Registry data © Crown copyright and database right 2021. This data is licensed under the Open Government Licence v3.0. How we use it

Postcodes in EC1M 4

Pick a postcode to see its council and MP, broadband, flood risk, what homes sell for, council tax, the nearest schools and stations, and crime around it.

EC1M 4AAEC1M 4AHEC1M 4ANEC1M 4AREC1M 4ASEC1M 4AYEC1M 4BFEC1M 4BGEC1M 4BHEC1M 4BJEC1M 4BLEC1M 4BSEC1M 4BUEC1M 4DAEC1M 4DDEC1M 4DEEC1M 4DFEC1M 4DHEC1M 4DLEC1M 4DNEC1M 4DSEC1M 4DTEC1M 4DZEC1M 4EBEC1M 4EFEC1M 4EGEC1M 4EHEC1M 4ELEC1M 4HFEC1M 4HGEC1M 4JNEC1M 4NAEC1M 4NBEC1M 4NHEC1M 4NJEC1M 4NNEC1M 4NPEC1M 4NQEC1M 4NREC1M 4NTEC1M 4NUEC1M 4NXEC1M 4XA

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026. Postcodes that have ended are not listed. See all our data sources

What council am I in? The council, borough or local authority for a postcode, and the county council where there is one. What ward am I in? The ward for a postcode, with its council, constituency and parish.

Check a postcode

Something wrong on this page? Report an error and we will check it against the source.