EC4A 3 postcode sector in the EC4A district

EC4A 3 is a sector of the EC4A district: every postcode that starts EC4A 3. It has 35 postcodes in use, 8 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 EC4A 3 sector, and which are new since 2020

Map of every postcode in the EC4A 3 sector, by new since 2020 Of the 35 postcodes in the EC4A 3 sector that ONS places, 3 are new since 2020 and 32 were in use before 2020. One postcode lies beyond the edge and is listed under the map. Places named: Castle Baynard. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A40A4A201 EC4A 3AE: before 2020EC4A 3AF: before 2020EC4A 3AG: before 2020EC4A 3AP: before 2020EC4A 3AQ: before 2020EC4A 3AS: before 2020EC4A 3BA: before 2020EC4A 3BE: before 2020EC4A 3BG: before 2020EC4A 3BH: before 2020EC4A 3BL: before 2020EC4A 3BN: before 2020EC4A 3BQ: before 2020EC4A 3BT: before 2020EC4A 3BY: before 2020EC4A 3BZ: before 2020EC4A 3DE: before 2020EC4A 3DG: before 2020EC4A 3DL: before 2020EC4A 3DQ: before 2020EC4A 3DW: before 2020EC4A 3EA: before 2020EC4A 3EB: before 2020EC4A 3EF: before 2020EC4A 3HQ: before 2020EC4A 3JR: before 2020EC4A 3TW: before 2020EC4A 3DA: new since 2020EC4A 3DF: new since 2020EC4A 3LW: new since 2020 Castle Baynard Map of every postcode in the EC4A 3 sector, by new since 2020 Of the 35 postcodes in the EC4A 3 sector that ONS places, 3 are new since 2020 and 32 were in use before 2020. One postcode lies beyond the edge and is listed under the map. Places named: Castle Baynard. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A40 Castle Baynard
  • New since 2020: 3
  • In use before 2020: 32

Of the 35 postcodes in the EC4A 3 sector that ONS places, 3 are new since 2020 and 32 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

EC4A 3DFAugust 2025EC4A 3LWMay 2023EC4A 3DASeptember 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.

EC4A 3WY

What do homes sell for in EC4A 3?

HM Land Registry records 2 sales of homes in EC4A 3 in the 12 months to August 2026: too few to give a typical price.

  • Flat or maisonette 2 sales, too few to price

Standard sales of homes at market value at the postcodes that start EC4A 3. 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 EC4A 3

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.

EC4A 3AEEC4A 3AFEC4A 3AGEC4A 3APEC4A 3AQEC4A 3ASEC4A 3ATEC4A 3BAEC4A 3BEEC4A 3BFEC4A 3BGEC4A 3BHEC4A 3BLEC4A 3BNEC4A 3BQEC4A 3BTEC4A 3BYEC4A 3BZEC4A 3DAEC4A 3DEEC4A 3DFEC4A 3DGEC4A 3DJEC4A 3DLEC4A 3DQEC4A 3DWEC4A 3EAEC4A 3EBEC4A 3EFEC4A 3HQEC4A 3JREC4A 3LWEC4A 3LXEC4A 3TWEC4A 3WY

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.

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