CM4 9 postcode sector in the CM4 district

CM4 9 is a sector of the CM4 district: every postcode that starts CM4 9. It has 233 postcodes in use, 6 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 CM4 9 sector, by flood risk

Map of every postcode in the CM4 9 sector, by flood risk Of the 233 postcodes in the CM4 9 sector that ONS places, 4 have a home or business at high risk, 2 are at medium risk at worst, 5 are at low risk at worst and 222 are not on the Environment Agency's at-risk list. Places named: Ingatestone, Stock. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. A12 CM4 9AA: not on the flood risk listCM4 9AF: not on the flood risk listCM4 9AG: not on the flood risk listCM4 9AL: not on the flood risk listCM4 9AN: not on the flood risk listCM4 9AP: not on the flood risk listCM4 9AQ: not on the flood risk listCM4 9AS: not on the flood risk listCM4 9AT: not on the flood risk listCM4 9AX: not on the flood risk listCM4 9AY: not on the flood risk listCM4 9AZ: not on the flood risk listCM4 9BA: not on the flood risk listCM4 9BD: not on the flood risk listCM4 9BE: not on the flood risk listCM4 9BG: not on the flood risk listCM4 9BH: not on the flood risk listCM4 9BJ: not on the flood risk listCM4 9BL: not on the flood risk listCM4 9BN: not on the flood risk listCM4 9BP: not on the flood risk listCM4 9BQ: not on the flood risk listCM4 9BS: not on the flood risk listCM4 9BT: not on the flood risk listCM4 9BU: not on the flood risk listCM4 9BX: not on the flood risk listCM4 9BY: not on the flood risk listCM4 9BZ: not on the flood risk listCM4 9DB: not on the flood risk listCM4 9DD: not on the flood risk listCM4 9DE: not on the flood risk listCM4 9DF: not on the flood risk listCM4 9DG: not on the flood risk listCM4 9DJ: not on the flood risk listCM4 9DL: not on the flood risk listCM4 9DN: not on the flood risk listCM4 9DP: not on the flood risk listCM4 9DQ: not on the flood risk listCM4 9DS: not on the flood risk listCM4 9DT: not on the flood risk listCM4 9DU: not on the flood risk listCM4 9DX: not on the flood risk listCM4 9DZ: not on the flood risk listCM4 9EA: not on the flood risk listCM4 9EB: not on the flood risk listCM4 9ED: not on the flood risk listCM4 9EE: not on the flood risk listCM4 9EF: not on the flood risk listCM4 9EG: not on the flood risk listCM4 9EH: not on the flood risk listCM4 9EJ: not on the flood risk listCM4 9EL: not on the flood risk listCM4 9ER: not on the flood risk listCM4 9ES: not on the flood risk listCM4 9ET: not on the flood risk listCM4 9EU: not on the flood risk listCM4 9EX: not on the flood risk listCM4 9EY: not on the flood risk listCM4 9EZ: not on the flood risk listCM4 9FA: not on the flood risk listCM4 9FB: not on the flood risk listCM4 9FD: not on the flood risk listCM4 9FF: not on the flood risk listCM4 9FG: not on the flood risk listCM4 9FJ: not on the flood risk listCM4 9FL: not on the flood risk listCM4 9FN: not on the flood risk listCM4 9FP: not on the flood risk listCM4 9FQ: not on the flood risk listCM4 9FR: not on the flood risk listCM4 9FS: not on the flood risk listCM4 9FT: not on the flood risk listCM4 9FW: not on the flood risk listCM4 9FX: not on the flood risk listCM4 9FY: not on the flood risk listCM4 9FZ: not on the flood risk listCM4 9GF: not on the flood risk listCM4 9GJ: not on the flood risk listCM4 9GL: not on the flood risk listCM4 9HB: not on the flood risk listCM4 9HD: not on the flood risk listCM4 9HE: not on the flood risk listCM4 9HF: not on the flood risk listCM4 9HG: not on the flood risk listCM4 9HH: not on the flood risk listCM4 9HJ: not on the flood risk listCM4 9HL: not on the flood risk listCM4 9HN: not on the flood risk listCM4 9HP: not on the flood risk listCM4 9HQ: not on the flood risk listCM4 9HR: not on the flood risk listCM4 9HU: not on the flood risk listCM4 9HX: not on the flood risk listCM4 9HY: not on the flood risk listCM4 9HZ: not on the flood risk listCM4 9JA: not on the flood risk listCM4 9JB: not on the flood risk listCM4 9JE: not on the flood risk listCM4 9JF: not on the flood risk listCM4 9JG: not on the flood risk listCM4 9JH: not on the flood risk listCM4 9JJ: not on the flood risk listCM4 9JL: not on the flood risk listCM4 9JN: not on the flood risk listCM4 9JP: not on the flood risk listCM4 9JQ: not on the flood risk listCM4 9JR: not on the flood risk listCM4 9JS: not on the flood risk listCM4 9JT: not on the flood risk listCM4 9JU: not on the flood risk listCM4 9JW: not on the flood risk listCM4 9JX: not on the flood risk listCM4 9JY: not on the flood risk listCM4 9JZ: not on the flood risk listCM4 9LA: not on the flood risk listCM4 9LD: not on the flood risk listCM4 9LE: not on the flood risk listCM4 9LF: not on the flood risk listCM4 9LG: not on the flood risk listCM4 9LJ: not on the flood risk listCM4 9LL: not on the flood risk listCM4 9LN: not on the flood risk listCM4 9LR: not on the flood risk listCM4 9LS: not on the flood risk listCM4 9LT: not on the flood risk listCM4 9LU: not on the flood risk listCM4 9LW: not on the flood risk listCM4 9LX: not on the flood risk listCM4 9LY: not on the flood risk listCM4 9LZ: not on the flood risk listCM4 9NA: not on the flood risk listCM4 9ND: not on the flood risk listCM4 9NE: not on the flood risk listCM4 9NF: not on the flood risk listCM4 9NH: not on the flood risk listCM4 9NJ: not on the flood risk listCM4 9NL: not on the flood risk listCM4 9NP: not on the flood risk listCM4 9NQ: not on the flood risk listCM4 9NR: not on the flood risk listCM4 9NT: not on the flood risk listCM4 9NU: not on the flood risk listCM4 9NX: not on the flood risk listCM4 9NY: not on the flood risk listCM4 9NZ: not on the flood risk listCM4 9PA: not on the flood risk listCM4 9PB: not on the flood risk listCM4 9PE: not on the flood risk listCM4 9PF: not on the flood risk listCM4 9PG: not on the flood risk listCM4 9PH: not on the flood risk listCM4 9PJ: not on the flood risk listCM4 9PN: not on the flood risk listCM4 9PP: not on the flood risk listCM4 9PQ: not on the flood risk listCM4 9PR: not on the flood risk listCM4 9PS: not on the flood risk listCM4 9PT: not on the flood risk listCM4 9PU: not on the flood risk listCM4 9PW: not on the flood risk listCM4 9PX: not on the flood risk listCM4 9PY: not on the flood risk listCM4 9PZ: not on the flood risk listCM4 9QA: not on the flood risk listCM4 9QB: not on the flood risk listCM4 9QD: not on the flood risk listCM4 9QE: not on the flood risk listCM4 9QF: not on the flood risk listCM4 9QG: not on the flood risk listCM4 9QL: not on the flood risk listCM4 9QP: not on the flood risk listCM4 9QR: not on the flood risk listCM4 9QS: not on the flood risk listCM4 9QT: not on the flood risk listCM4 9QU: not on the flood risk listCM4 9QW: not on the flood risk listCM4 9QX: not on the flood risk listCM4 9QY: not on the flood risk listCM4 9RA: not on the flood risk listCM4 9RB: not on the flood risk listCM4 9RD: not on the flood risk listCM4 9RE: not on the flood risk listCM4 9RF: not on the flood risk listCM4 9RG: not on the flood risk listCM4 9RH: not on the flood risk listCM4 9RJ: not on the flood risk listCM4 9RL: not on the flood risk listCM4 9RN: not on the flood risk listCM4 9RP: not on the flood risk listCM4 9RS: not on the flood risk listCM4 9RT: not on the flood risk listCM4 9RU: not on the flood risk listCM4 9RW: not on the flood risk listCM4 9RY: not on the flood risk listCM4 9RZ: not on the flood risk listCM4 9SB: not on the flood risk listCM4 9SD: not on the flood risk listCM4 9SX: not on the flood risk listCM4 9TA: not on the flood risk listCM4 9TB: not on the flood risk listCM4 9TD: not on the flood risk listCM4 9TL: not on the flood risk listCM4 9AJ: low flood risk at worstCM4 9AW: low flood risk at worstCM4 9DR: low flood risk at worstCM4 9NN: low flood risk at worstCM4 9NS: low flood risk at worstCM4 9AD: medium flood risk at worstCM4 9AH: medium flood risk at worstCM4 9AE: high flood riskCM4 9AR: high flood riskCM4 9PD: high flood riskCM4 9QN: high flood risk IngatestoneStock Map of every postcode in the CM4 9 sector, by flood risk Of the 233 postcodes in the CM4 9 sector that ONS places, 4 have a home or business at high risk, 2 are at medium risk at worst, 5 are at low risk at worst and 222 are not on the Environment Agency's at-risk list. Places named: Ingatestone, Stock. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 2 km. A12 IngatestoneStock
  • A home or business at high risk: 4
  • At medium risk at worst: 2
  • At low risk at worst: 5
  • At very low risk only: 0
  • Not on the at-risk list: 222

Of the 233 postcodes in the CM4 9 sector that ONS places, 4 have a home or business at high risk, 2 are at medium risk at worst, 5 are at low risk at worst and 222 are not on the Environment Agency's at-risk list.

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. 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; flood risk: Environment Agency, published 6 July 2026; 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 postcodes at high risk

Beside each: how many of its homes and businesses the Environment Agency puts at that risk.

CM4 9AR6 at high riskCM4 9QN5 at high riskCM4 9PD3 at high riskCM4 9AE2 at high risk

What do homes sell for in CM4 9?

Homes in CM4 9 sold for a typical £688,750 in the 12 months to August 2026, across 73 sales, down 5% on the 12 months before, HM Land Registry's figures show.

£688,750 typical price, the 12 months to August 2026
£725,000 12 months to August 2025
▼ down 5% on the 12 months before
  • Detached £900,000 40 sales
  • Semi-detached £542,500 20 sales
  • Terraced £440,000 7 sales
  • Flat or maisonette £330,000 6 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 CM4 9. 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 CM4 9

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.

CM4 9AACM4 9ADCM4 9AECM4 9AFCM4 9AGCM4 9AHCM4 9AJCM4 9ALCM4 9ANCM4 9APCM4 9AQCM4 9ARCM4 9ASCM4 9ATCM4 9AWCM4 9AXCM4 9AYCM4 9AZCM4 9BACM4 9BDCM4 9BECM4 9BGCM4 9BHCM4 9BJCM4 9BLCM4 9BNCM4 9BPCM4 9BQCM4 9BSCM4 9BTCM4 9BUCM4 9BWCM4 9BXCM4 9BYCM4 9BZCM4 9DBCM4 9DDCM4 9DECM4 9DFCM4 9DGCM4 9DJCM4 9DLCM4 9DNCM4 9DPCM4 9DQCM4 9DRCM4 9DSCM4 9DTCM4 9DUCM4 9DWCM4 9DXCM4 9DYCM4 9DZCM4 9EACM4 9EBCM4 9EDCM4 9EECM4 9EFCM4 9EGCM4 9EHCM4 9EJCM4 9ELCM4 9ENCM4 9EPCM4 9EQCM4 9ERCM4 9ESCM4 9ETCM4 9EUCM4 9EXCM4 9EYCM4 9EZCM4 9FACM4 9FBCM4 9FDCM4 9FFCM4 9FGCM4 9FHCM4 9FJCM4 9FLCM4 9FNCM4 9FPCM4 9FQCM4 9FRCM4 9FSCM4 9FTCM4 9FWCM4 9FXCM4 9FYCM4 9FZCM4 9GECM4 9GFCM4 9GHCM4 9GJCM4 9GLCM4 9HACM4 9HBCM4 9HDCM4 9HECM4 9HFCM4 9HGCM4 9HHCM4 9HJCM4 9HLCM4 9HNCM4 9HPCM4 9HQCM4 9HRCM4 9HUCM4 9HXCM4 9HYCM4 9HZCM4 9JACM4 9JBCM4 9JECM4 9JFCM4 9JGCM4 9JHCM4 9JJCM4 9JLCM4 9JNCM4 9JPCM4 9JQCM4 9JRCM4 9JSCM4 9JTCM4 9JUCM4 9JWCM4 9JXCM4 9JYCM4 9JZCM4 9LACM4 9LDCM4 9LECM4 9LFCM4 9LGCM4 9LHCM4 9LJCM4 9LLCM4 9LNCM4 9LPCM4 9LQCM4 9LRCM4 9LSCM4 9LTCM4 9LUCM4 9LWCM4 9LXCM4 9LYCM4 9LZCM4 9NACM4 9NDCM4 9NECM4 9NFCM4 9NHCM4 9NJCM4 9NLCM4 9NNCM4 9NPCM4 9NQCM4 9NRCM4 9NSCM4 9NTCM4 9NUCM4 9NXCM4 9NYCM4 9NZCM4 9PACM4 9PBCM4 9PDCM4 9PECM4 9PFCM4 9PGCM4 9PHCM4 9PJCM4 9PNCM4 9PPCM4 9PQCM4 9PRCM4 9PSCM4 9PTCM4 9PUCM4 9PWCM4 9PXCM4 9PYCM4 9PZCM4 9QACM4 9QBCM4 9QDCM4 9QECM4 9QFCM4 9QGCM4 9QLCM4 9QNCM4 9QPCM4 9QRCM4 9QSCM4 9QTCM4 9QUCM4 9QWCM4 9QXCM4 9QYCM4 9QZCM4 9RACM4 9RBCM4 9RDCM4 9RECM4 9RFCM4 9RGCM4 9RHCM4 9RJCM4 9RLCM4 9RNCM4 9RPCM4 9RSCM4 9RTCM4 9RUCM4 9RWCM4 9RYCM4 9RZCM4 9SBCM4 9SDCM4 9SRCM4 9SXCM4 9TACM4 9TBCM4 9TDCM4 9TECM4 9TLCM4 9TPCM4 9WACM4 9XGCM4 9YW

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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