CM12 9 postcode sector in the CM12 district

CM12 9 is a sector of the CM12 district: every postcode that starts CM12 9. It has 226 postcodes in use, 2 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 CM12 9 sector, by flood risk

Map of every postcode in the CM12 9 sector, by flood risk Of the 226 postcodes in the CM12 9 sector that ONS places, 1 have a home or business at high risk, 2 are at medium risk at worst, 6 are at low risk at worst and 217 are not on the Environment Agency's at-risk list. Places named: Billericay. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. CM12 9AA: not on the flood risk listCM12 9AB: not on the flood risk listCM12 9AD: not on the flood risk listCM12 9AH: not on the flood risk listCM12 9AJ: not on the flood risk listCM12 9AQ: not on the flood risk listCM12 9AS: not on the flood risk listCM12 9AX: not on the flood risk listCM12 9BA: not on the flood risk listCM12 9BE: not on the flood risk listCM12 9BG: not on the flood risk listCM12 9BQ: not on the flood risk listCM12 9BS: not on the flood risk listCM12 9BT: not on the flood risk listCM12 9BU: not on the flood risk listCM12 9BX: not on the flood risk listCM12 9BY: not on the flood risk listCM12 9DA: not on the flood risk listCM12 9DF: not on the flood risk listCM12 9DG: not on the flood risk listCM12 9DH: not on the flood risk listCM12 9DL: not on the flood risk listCM12 9DN: not on the flood risk listCM12 9DP: not on the flood risk listCM12 9DR: not on the flood risk listCM12 9DS: not on the flood risk listCM12 9DT: not on the flood risk listCM12 9DU: not on the flood risk listCM12 9DW: not on the flood risk listCM12 9DX: not on the flood risk listCM12 9DZ: not on the flood risk listCM12 9EA: not on the flood risk listCM12 9EB: not on the flood risk listCM12 9ED: not on the flood risk listCM12 9EE: not on the flood risk listCM12 9EF: not on the flood risk listCM12 9EG: not on the flood risk listCM12 9EH: not on the flood risk listCM12 9EL: not on the flood risk listCM12 9EQ: not on the flood risk listCM12 9ES: not on the flood risk listCM12 9ET: not on the flood risk listCM12 9EU: not on the flood risk listCM12 9EW: not on the flood risk listCM12 9EX: not on the flood risk listCM12 9EZ: not on the flood risk listCM12 9FL: not on the flood risk listCM12 9FN: not on the flood risk listCM12 9FP: not on the flood risk listCM12 9FQ: not on the flood risk listCM12 9FR: not on the flood risk listCM12 9FS: not on the flood risk listCM12 9FU: not on the flood risk listCM12 9FX: not on the flood risk listCM12 9FY: not on the flood risk listCM12 9GE: not on the flood risk listCM12 9GQ: not on the flood risk listCM12 9GY: not on the flood risk listCM12 9HA: not on the flood risk listCM12 9HB: not on the flood risk listCM12 9HD: not on the flood risk listCM12 9HE: not on the flood risk listCM12 9HG: not on the flood risk listCM12 9HH: not on the flood risk listCM12 9HJ: not on the flood risk listCM12 9HL: not on the flood risk listCM12 9HP: not on the flood risk listCM12 9HQ: not on the flood risk listCM12 9HR: not on the flood risk listCM12 9HX: not on the flood risk listCM12 9HZ: not on the flood risk listCM12 9JA: not on the flood risk listCM12 9JB: not on the flood risk listCM12 9JD: not on the flood risk listCM12 9JE: not on the flood risk listCM12 9JF: not on the flood risk listCM12 9JG: not on the flood risk listCM12 9JH: not on the flood risk listCM12 9JJ: not on the flood risk listCM12 9JL: not on the flood risk listCM12 9JN: not on the flood risk listCM12 9JS: not on the flood risk listCM12 9JT: not on the flood risk listCM12 9JU: not on the flood risk listCM12 9JW: not on the flood risk listCM12 9JX: not on the flood risk listCM12 9JY: not on the flood risk listCM12 9JZ: not on the flood risk listCM12 9LA: not on the flood risk listCM12 9LB: not on the flood risk listCM12 9LD: not on the flood risk listCM12 9LE: not on the flood risk listCM12 9LF: not on the flood risk listCM12 9LG: not on the flood risk listCM12 9LH: not on the flood risk listCM12 9LJ: not on the flood risk listCM12 9LL: not on the flood risk listCM12 9LP: not on the flood risk listCM12 9LR: not on the flood risk listCM12 9LS: not on the flood risk listCM12 9LT: not on the flood risk listCM12 9LU: not on the flood risk listCM12 9LW: not on the flood risk listCM12 9LX: not on the flood risk listCM12 9LY: not on the flood risk listCM12 9NA: not on the flood risk listCM12 9NB: not on the flood risk listCM12 9ND: not on the flood risk listCM12 9NE: not on the flood risk listCM12 9NF: not on the flood risk listCM12 9NG: not on the flood risk listCM12 9NH: not on the flood risk listCM12 9NJ: not on the flood risk listCM12 9NL: not on the flood risk listCM12 9NN: not on the flood risk listCM12 9NP: not on the flood risk listCM12 9NQ: not on the flood risk listCM12 9NR: not on the flood risk listCM12 9NS: not on the flood risk listCM12 9NT: not on the flood risk listCM12 9NU: not on the flood risk listCM12 9NW: not on the flood risk listCM12 9NX: not on the flood risk listCM12 9NY: not on the flood risk listCM12 9NZ: not on the flood risk listCM12 9PA: not on the flood risk listCM12 9PB: not on the flood risk listCM12 9PD: not on the flood risk listCM12 9PE: not on the flood risk listCM12 9PG: not on the flood risk listCM12 9PJ: not on the flood risk listCM12 9PL: not on the flood risk listCM12 9PN: not on the flood risk listCM12 9PP: not on the flood risk listCM12 9PQ: not on the flood risk listCM12 9PR: not on the flood risk listCM12 9PS: not on the flood risk listCM12 9PT: not on the flood risk listCM12 9PU: not on the flood risk listCM12 9PW: not on the flood risk listCM12 9PX: not on the flood risk listCM12 9PZ: not on the flood risk listCM12 9QB: not on the flood risk listCM12 9QF: not on the flood risk listCM12 9QG: not on the flood risk listCM12 9QH: not on the flood risk listCM12 9QJ: not on the flood risk listCM12 9QL: not on the flood risk listCM12 9QP: not on the flood risk listCM12 9QQ: not on the flood risk listCM12 9QR: not on the flood risk listCM12 9QS: not on the flood risk listCM12 9QT: not on the flood risk listCM12 9QU: not on the flood risk listCM12 9QW: not on the flood risk listCM12 9QX: not on the flood risk listCM12 9QY: not on the flood risk listCM12 9QZ: not on the flood risk listCM12 9RA: not on the flood risk listCM12 9RB: not on the flood risk listCM12 9RD: not on the flood risk listCM12 9RE: not on the flood risk listCM12 9RF: not on the flood risk listCM12 9RG: not on the flood risk listCM12 9RH: not on the flood risk listCM12 9RJ: not on the flood risk listCM12 9RR: not on the flood risk listCM12 9RS: not on the flood risk listCM12 9RU: not on the flood risk listCM12 9RW: not on the flood risk listCM12 9SA: not on the flood risk listCM12 9SB: not on the flood risk listCM12 9SD: not on the flood risk listCM12 9SE: not on the flood risk listCM12 9SG: not on the flood risk listCM12 9SJ: not on the flood risk listCM12 9SL: not on the flood risk listCM12 9SN: not on the flood risk listCM12 9SP: not on the flood risk listCM12 9SR: not on the flood risk listCM12 9SS: not on the flood risk listCM12 9ST: not on the flood risk listCM12 9SY: not on the flood risk listCM12 9TA: not on the flood risk listCM12 9TB: not on the flood risk listCM12 9TD: not on the flood risk listCM12 9TE: not on the flood risk listCM12 9TF: not on the flood risk listCM12 9TG: not on the flood risk listCM12 9TH: not on the flood risk listCM12 9TJ: not on the flood risk listCM12 9TL: not on the flood risk listCM12 9TN: not on the flood risk listCM12 9TP: not on the flood risk listCM12 9TR: not on the flood risk listCM12 9TS: not on the flood risk listCM12 9TY: not on the flood risk listCM12 9UG: not on the flood risk listCM12 9UH: not on the flood risk listCM12 9UJ: not on the flood risk listCM12 9UL: not on the flood risk listCM12 9UT: not on the flood risk listCM12 9UZ: not on the flood risk listCM12 9XA: not on the flood risk listCM12 9XB: not on the flood risk listCM12 9XE: not on the flood risk listCM12 9XG: not on the flood risk listCM12 9XH: not on the flood risk listCM12 9XY: not on the flood risk listCM12 9YB: not on the flood risk listCM12 9YE: not on the flood risk listCM12 9YF: not on the flood risk listCM12 9HT: low flood risk at worstCM12 9UA: low flood risk at worstCM12 9UN: low flood risk at worstCM12 9UP: low flood risk at worstCM12 9UR: low flood risk at worstCM12 9UX: low flood risk at worstCM12 9HS: medium flood risk at worstCM12 9TZ: medium flood risk at worstCM12 9TT: high flood risk Billericay Map of every postcode in the CM12 9 sector, by flood risk Of the 226 postcodes in the CM12 9 sector that ONS places, 1 have a home or business at high risk, 2 are at medium risk at worst, 6 are at low risk at worst and 217 are not on the Environment Agency's at-risk list. Places named: Billericay. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. Billericay
  • A home or business at high risk: 1
  • At medium risk at worst: 2
  • At low risk at worst: 6
  • At very low risk only: 0
  • Not on the at-risk list: 217

Of the 226 postcodes in the CM12 9 sector that ONS places, 1 have a home or business at high risk, 2 are at medium risk at worst, 6 are at low risk at worst and 217 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.

CM12 9TT5 at high risk

What do homes sell for in CM12 9?

Homes in CM12 9 sold for a typical £565,000 in the 12 months to August 2026, across 118 sales, up 8.7% on the 12 months before, HM Land Registry's figures show.

£565,000 typical price, the 12 months to August 2026
£520,000 12 months to August 2025
▲ up 8.7% on the 12 months before
  • Detached £739,250 52 sales
  • Semi-detached £497,000 39 sales
  • Terraced £450,000 9 sales
  • Flat or maisonette £282,500 18 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 CM12 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 CM12 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.

CM12 9AACM12 9ABCM12 9ADCM12 9AHCM12 9AJCM12 9APCM12 9AQCM12 9ASCM12 9AXCM12 9BACM12 9BECM12 9BGCM12 9BQCM12 9BSCM12 9BTCM12 9BUCM12 9BXCM12 9BYCM12 9DACM12 9DFCM12 9DGCM12 9DHCM12 9DLCM12 9DNCM12 9DPCM12 9DRCM12 9DSCM12 9DTCM12 9DUCM12 9DWCM12 9DXCM12 9DYCM12 9DZCM12 9EACM12 9EBCM12 9EDCM12 9EECM12 9EFCM12 9EGCM12 9EHCM12 9ELCM12 9EQCM12 9ESCM12 9ETCM12 9EUCM12 9EWCM12 9EXCM12 9EZCM12 9FLCM12 9FNCM12 9FPCM12 9FQCM12 9FRCM12 9FSCM12 9FUCM12 9FXCM12 9FYCM12 9GECM12 9GFCM12 9GQCM12 9GYCM12 9HACM12 9HBCM12 9HDCM12 9HECM12 9HGCM12 9HHCM12 9HJCM12 9HLCM12 9HPCM12 9HQCM12 9HRCM12 9HSCM12 9HTCM12 9HXCM12 9HZCM12 9JACM12 9JBCM12 9JDCM12 9JECM12 9JFCM12 9JGCM12 9JHCM12 9JJCM12 9JLCM12 9JNCM12 9JSCM12 9JTCM12 9JUCM12 9JWCM12 9JXCM12 9JYCM12 9JZCM12 9LACM12 9LBCM12 9LDCM12 9LECM12 9LFCM12 9LGCM12 9LHCM12 9LJCM12 9LLCM12 9LPCM12 9LRCM12 9LSCM12 9LTCM12 9LUCM12 9LWCM12 9LXCM12 9LYCM12 9NACM12 9NBCM12 9NDCM12 9NECM12 9NFCM12 9NGCM12 9NHCM12 9NJCM12 9NLCM12 9NNCM12 9NPCM12 9NQCM12 9NRCM12 9NSCM12 9NTCM12 9NUCM12 9NWCM12 9NXCM12 9NYCM12 9NZCM12 9PACM12 9PBCM12 9PDCM12 9PECM12 9PGCM12 9PJCM12 9PLCM12 9PNCM12 9PPCM12 9PQCM12 9PRCM12 9PSCM12 9PTCM12 9PUCM12 9PWCM12 9PXCM12 9PZCM12 9QBCM12 9QFCM12 9QGCM12 9QHCM12 9QJCM12 9QLCM12 9QPCM12 9QQCM12 9QRCM12 9QSCM12 9QTCM12 9QUCM12 9QWCM12 9QXCM12 9QYCM12 9QZCM12 9RACM12 9RBCM12 9RDCM12 9RECM12 9RFCM12 9RGCM12 9RHCM12 9RJCM12 9RNCM12 9RRCM12 9RSCM12 9RUCM12 9RWCM12 9SACM12 9SBCM12 9SDCM12 9SECM12 9SGCM12 9SJCM12 9SLCM12 9SNCM12 9SPCM12 9SRCM12 9SSCM12 9STCM12 9SYCM12 9TACM12 9TBCM12 9TDCM12 9TECM12 9TFCM12 9TGCM12 9THCM12 9TJCM12 9TLCM12 9TNCM12 9TPCM12 9TRCM12 9TSCM12 9TTCM12 9TYCM12 9TZCM12 9UACM12 9UGCM12 9UHCM12 9UJCM12 9ULCM12 9UNCM12 9UPCM12 9URCM12 9UTCM12 9UXCM12 9UZCM12 9WFCM12 9XACM12 9XBCM12 9XECM12 9XGCM12 9XHCM12 9XYCM12 9YBCM12 9YECM12 9YF

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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