CM21 0 postcode sector in the CM21 district

CM21 0 is a sector of the CM21 district: every postcode that starts CM21 0. It has 136 postcodes in use.

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

Every postcode in the CM21 0 sector, and which are new since 2020

Map of every postcode in the CM21 0 sector, by new since 2020 Of the 136 postcodes in the CM21 0 sector that ONS places, 19 are new since 2020 and 117 were in use before 2020. 2 groups of new postcodes are outlined: 13 new postcodes since 2020; 6 new postcodes since 2020. Places named: Sawbridgeworth. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. CM21 0AA: before 2020CM21 0AB: before 2020CM21 0AD: before 2020CM21 0AE: before 2020CM21 0AF: before 2020CM21 0AH: before 2020CM21 0AJ: before 2020CM21 0AL: before 2020CM21 0AN: before 2020CM21 0AP: before 2020CM21 0AQ: before 2020CM21 0AR: before 2020CM21 0AS: before 2020CM21 0AT: before 2020CM21 0AU: before 2020CM21 0AX: before 2020CM21 0AY: before 2020CM21 0AZ: before 2020CM21 0BB: before 2020CM21 0BD: before 2020CM21 0BE: before 2020CM21 0BJ: before 2020CM21 0BL: before 2020CM21 0BN: before 2020CM21 0BP: before 2020CM21 0BS: before 2020CM21 0BT: before 2020CM21 0BU: before 2020CM21 0BW: before 2020CM21 0BX: before 2020CM21 0BY: before 2020CM21 0BZ: before 2020CM21 0DA: before 2020CM21 0DB: before 2020CM21 0DD: before 2020CM21 0DE: before 2020CM21 0DF: before 2020CM21 0DH: before 2020CM21 0DJ: before 2020CM21 0DN: before 2020CM21 0DQ: before 2020CM21 0DR: before 2020CM21 0DS: before 2020CM21 0DT: before 2020CM21 0DU: before 2020CM21 0DY: before 2020CM21 0DZ: before 2020CM21 0EA: before 2020CM21 0EB: before 2020CM21 0ED: before 2020CM21 0EE: before 2020CM21 0EF: before 2020CM21 0EG: before 2020CM21 0EH: before 2020CM21 0EJ: before 2020CM21 0EL: before 2020CM21 0EP: before 2020CM21 0ER: before 2020CM21 0ES: before 2020CM21 0ET: before 2020CM21 0EU: before 2020CM21 0EY: before 2020CM21 0HA: before 2020CM21 0HB: before 2020CM21 0HD: before 2020CM21 0HE: before 2020CM21 0HF: before 2020CM21 0HG: before 2020CM21 0HH: before 2020CM21 0HL: before 2020CM21 0HN: before 2020CM21 0HP: before 2020CM21 0HQ: before 2020CM21 0HR: before 2020CM21 0HS: before 2020CM21 0HT: before 2020CM21 0HU: before 2020CM21 0HX: before 2020CM21 0HY: before 2020CM21 0HZ: before 2020CM21 0JA: before 2020CM21 0JB: before 2020CM21 0JD: before 2020CM21 0JE: before 2020CM21 0JJ: before 2020CM21 0JL: before 2020CM21 0JN: before 2020CM21 0JP: before 2020CM21 0JQ: before 2020CM21 0JR: before 2020CM21 0JT: before 2020CM21 0JU: before 2020CM21 0JW: before 2020CM21 0JX: before 2020CM21 0JY: before 2020CM21 0JZ: before 2020CM21 0LA: before 2020CM21 0LB: before 2020CM21 0LD: before 2020CM21 0LE: before 2020CM21 0LF: before 2020CM21 0LH: before 2020CM21 0LJ: before 2020CM21 0LL: before 2020CM21 0LP: before 2020CM21 0LQ: before 2020CM21 0LR: before 2020CM21 0LS: before 2020CM21 0LT: before 2020CM21 0LU: before 2020CM21 0LX: before 2020CM21 0LY: before 2020CM21 0NA: before 2020CM21 0NB: before 2020CM21 0ND: before 2020CM21 0NG: before 2020CM21 0RL: before 2020CM21 0DW: new since 2020CM21 0EN: new since 2020CM21 0EW: new since 2020CM21 0EZ: new since 2020CM21 0FA: new since 2020CM21 0FB: new since 2020CM21 0FD: new since 2020CM21 0FE: new since 2020CM21 0FF: new since 2020CM21 0FG: new since 2020CM21 0FJ: new since 2020CM21 0FL: new since 2020CM21 0FN: new since 2020CM21 0FP: new since 2020CM21 0FQ: new since 2020CM21 0FR: new since 2020CM21 0FS: new since 2020CM21 0FT: new since 2020 Sawbridgeworth 13 new postcodes since 2020, outlined: this goes to CM21 0FD, the newest of them13 new postcodes since 20206 new postcodes since 2020, outlined: this goes to CM21 0FT, the newest of them6 new postcodes since 2020 Map of every postcode in the CM21 0 sector, by new since 2020 Of the 136 postcodes in the CM21 0 sector that ONS places, 19 are new since 2020 and 117 were in use before 2020. 2 groups of new postcodes are outlined: 13 new postcodes since 2020; 6 new postcodes since 2020. Places named: Sawbridgeworth. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. Sawbridgeworth 6 new postcodes since 2020, outlined: this goes to CM21 0FT, the newest of them6 new postcodes since 2020
  • New since 2020: 19
  • In use before 2020: 117
  • Outline: where 5 or more new postcodes since 2020 lie together

Of the 136 postcodes in the CM21 0 sector that ONS places, 19 are new since 2020 and 117 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. A dashed outline shows where 5 or more lie within 190 metres of each other. It is not a boundary, and no boundary is drawn. Where marks overlap, the one first in the key is drawn; the counts include every postcode.

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 5 newest postcodes

CM21 0FDMay 2024CM21 0FEMay 2024CM21 0FGNovember 2023CM21 0FTNovember 2023CM21 0FHAugust 2023

Where the new postcodes lie together

  • 13 new postcodes since 2020, outlined on the map. CM21 0FD, is the newest of them.
  • 6 new postcodes since 2020, outlined on the map. CM21 0FT, is the newest of them.

What do homes sell for in CM21 0?

Homes in CM21 0 sold for a typical £492,500 in the 12 months to August 2026, across 44 sales, down 15.1% on the 12 months before, HM Land Registry's figures show.

£492,500 typical price, the 12 months to August 2026
£580,000 12 months to August 2025
▼ down 15.1% on the 12 months before
  • Detached £622,500 14 sales
  • Semi-detached £485,000 17 sales
  • Terraced £374,500 8 sales
  • Flat or maisonette £160,000 5 sales

Each bar is that kind's typical price, against the most expensive kind here.

Standard sales of homes at market value at the postcodes that start CM21 0. 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 CM21 0

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.

CM21 0AACM21 0ABCM21 0ADCM21 0AECM21 0AFCM21 0AHCM21 0AJCM21 0ALCM21 0ANCM21 0APCM21 0AQCM21 0ARCM21 0ASCM21 0ATCM21 0AUCM21 0AXCM21 0AYCM21 0AZCM21 0BBCM21 0BDCM21 0BECM21 0BJCM21 0BLCM21 0BNCM21 0BPCM21 0BSCM21 0BTCM21 0BUCM21 0BWCM21 0BXCM21 0BYCM21 0BZCM21 0DACM21 0DBCM21 0DDCM21 0DECM21 0DFCM21 0DHCM21 0DJCM21 0DNCM21 0DQCM21 0DRCM21 0DSCM21 0DTCM21 0DUCM21 0DWCM21 0DYCM21 0DZCM21 0EACM21 0EBCM21 0EDCM21 0EECM21 0EFCM21 0EGCM21 0EHCM21 0EJCM21 0ELCM21 0ENCM21 0EPCM21 0ERCM21 0ESCM21 0ETCM21 0EUCM21 0EWCM21 0EYCM21 0EZCM21 0FACM21 0FBCM21 0FDCM21 0FECM21 0FFCM21 0FGCM21 0FHCM21 0FJCM21 0FLCM21 0FNCM21 0FPCM21 0FQCM21 0FRCM21 0FSCM21 0FTCM21 0HACM21 0HBCM21 0HDCM21 0HECM21 0HFCM21 0HGCM21 0HHCM21 0HLCM21 0HNCM21 0HPCM21 0HQCM21 0HRCM21 0HSCM21 0HTCM21 0HUCM21 0HXCM21 0HYCM21 0HZCM21 0JACM21 0JBCM21 0JDCM21 0JECM21 0JJCM21 0JLCM21 0JNCM21 0JPCM21 0JQCM21 0JRCM21 0JTCM21 0JUCM21 0JWCM21 0JXCM21 0JYCM21 0JZCM21 0LACM21 0LBCM21 0LDCM21 0LECM21 0LFCM21 0LHCM21 0LJCM21 0LLCM21 0LPCM21 0LQCM21 0LRCM21 0LSCM21 0LTCM21 0LUCM21 0LXCM21 0LYCM21 0NACM21 0NBCM21 0NDCM21 0NGCM21 0RL

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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