CB4 3 postcode sector in the CB4 district

CB4 3 is a sector of the CB4 district: every postcode that starts CB4 3. It has 228 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 CB4 3 sector, by flood risk

Map of every postcode in the CB4 3 sector, by flood risk Of the 228 postcodes in the CB4 3 sector that ONS places, 2 have a home or business at high risk, 2 are at medium risk at worst and 224 are not on the Environment Agency's at-risk list. Places named: Cambridge. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. A603A1134 CB4 3AA: not on the flood risk listCB4 3AB: not on the flood risk listCB4 3AD: not on the flood risk listCB4 3AE: not on the flood risk listCB4 3AF: not on the flood risk listCB4 3AG: not on the flood risk listCB4 3AH: not on the flood risk listCB4 3AJ: not on the flood risk listCB4 3AL: not on the flood risk listCB4 3AN: not on the flood risk listCB4 3AP: not on the flood risk listCB4 3AQ: not on the flood risk listCB4 3AR: not on the flood risk listCB4 3BA: not on the flood risk listCB4 3BE: not on the flood risk listCB4 3BF: not on the flood risk listCB4 3BJ: not on the flood risk listCB4 3BL: not on the flood risk listCB4 3BP: not on the flood risk listCB4 3BQ: not on the flood risk listCB4 3BS: not on the flood risk listCB4 3BU: not on the flood risk listCB4 3BW: not on the flood risk listCB4 3BX: not on the flood risk listCB4 3BY: not on the flood risk listCB4 3BZ: not on the flood risk listCB4 3DA: not on the flood risk listCB4 3DB: not on the flood risk listCB4 3DD: not on the flood risk listCB4 3DF: not on the flood risk listCB4 3DG: not on the flood risk listCB4 3DH: not on the flood risk listCB4 3DJ: not on the flood risk listCB4 3DL: not on the flood risk listCB4 3DN: not on the flood risk listCB4 3DQ: not on the flood risk listCB4 3DR: not on the flood risk listCB4 3DS: not on the flood risk listCB4 3DU: not on the flood risk listCB4 3DW: not on the flood risk listCB4 3DX: not on the flood risk listCB4 3DZ: not on the flood risk listCB4 3EB: not on the flood risk listCB4 3ED: not on the flood risk listCB4 3EF: not on the flood risk listCB4 3EH: not on the flood risk listCB4 3EJ: not on the flood risk listCB4 3EL: not on the flood risk listCB4 3EN: not on the flood risk listCB4 3EP: not on the flood risk listCB4 3ER: not on the flood risk listCB4 3ES: not on the flood risk listCB4 3ET: not on the flood risk listCB4 3EU: not on the flood risk listCB4 3EW: not on the flood risk listCB4 3EX: not on the flood risk listCB4 3EY: not on the flood risk listCB4 3EZ: not on the flood risk listCB4 3FA: not on the flood risk listCB4 3FE: not on the flood risk listCB4 3FF: not on the flood risk listCB4 3FU: not on the flood risk listCB4 3FZ: not on the flood risk listCB4 3GH: not on the flood risk listCB4 3GJ: not on the flood risk listCB4 3GP: not on the flood risk listCB4 3GR: not on the flood risk listCB4 3GY: not on the flood risk listCB4 3HA: not on the flood risk listCB4 3HB: not on the flood risk listCB4 3HD: not on the flood risk listCB4 3HE: not on the flood risk listCB4 3HF: not on the flood risk listCB4 3HG: not on the flood risk listCB4 3HH: not on the flood risk listCB4 3HJ: not on the flood risk listCB4 3HL: not on the flood risk listCB4 3HN: not on the flood risk listCB4 3HP: not on the flood risk listCB4 3HQ: not on the flood risk listCB4 3HR: not on the flood risk listCB4 3HS: not on the flood risk listCB4 3HT: not on the flood risk listCB4 3HU: not on the flood risk listCB4 3HW: not on the flood risk listCB4 3HX: not on the flood risk listCB4 3JB: not on the flood risk listCB4 3JD: not on the flood risk listCB4 3JG: not on the flood risk listCB4 3JH: not on the flood risk listCB4 3JJ: not on the flood risk listCB4 3JL: not on the flood risk listCB4 3JN: not on the flood risk listCB4 3JQ: not on the flood risk listCB4 3JR: not on the flood risk listCB4 3JU: not on the flood risk listCB4 3JW: not on the flood risk listCB4 3JX: not on the flood risk listCB4 3JZ: not on the flood risk listCB4 3LA: not on the flood risk listCB4 3LB: not on the flood risk listCB4 3LD: not on the flood risk listCB4 3LE: not on the flood risk listCB4 3LF: not on the flood risk listCB4 3LG: not on the flood risk listCB4 3LH: not on the flood risk listCB4 3LJ: not on the flood risk listCB4 3LL: not on the flood risk listCB4 3LN: not on the flood risk listCB4 3LP: not on the flood risk listCB4 3LQ: not on the flood risk listCB4 3LR: not on the flood risk listCB4 3LS: not on the flood risk listCB4 3LT: not on the flood risk listCB4 3LU: not on the flood risk listCB4 3LW: not on the flood risk listCB4 3LX: not on the flood risk listCB4 3LY: not on the flood risk listCB4 3LZ: not on the flood risk listCB4 3NA: not on the flood risk listCB4 3NB: not on the flood risk listCB4 3ND: not on the flood risk listCB4 3NE: not on the flood risk listCB4 3NF: not on the flood risk listCB4 3NG: not on the flood risk listCB4 3NH: not on the flood risk listCB4 3NJ: not on the flood risk listCB4 3NL: not on the flood risk listCB4 3NN: not on the flood risk listCB4 3NP: not on the flood risk listCB4 3NQ: not on the flood risk listCB4 3NT: not on the flood risk listCB4 3NU: not on the flood risk listCB4 3NW: not on the flood risk listCB4 3NX: not on the flood risk listCB4 3NY: not on the flood risk listCB4 3NZ: not on the flood risk listCB4 3PA: not on the flood risk listCB4 3PB: not on the flood risk listCB4 3PD: not on the flood risk listCB4 3PE: not on the flood risk listCB4 3PF: not on the flood risk listCB4 3PH: not on the flood risk listCB4 3PJ: not on the flood risk listCB4 3PL: not on the flood risk listCB4 3PN: not on the flood risk listCB4 3PP: not on the flood risk listCB4 3PR: not on the flood risk listCB4 3PS: not on the flood risk listCB4 3PT: not on the flood risk listCB4 3PU: not on the flood risk listCB4 3PW: not on the flood risk listCB4 3PX: not on the flood risk listCB4 3PY: not on the flood risk listCB4 3PZ: not on the flood risk listCB4 3QB: not on the flood risk listCB4 3QE: not on the flood risk listCB4 3QF: not on the flood risk listCB4 3QG: not on the flood risk listCB4 3QH: not on the flood risk listCB4 3QJ: not on the flood risk listCB4 3QN: not on the flood risk listCB4 3QP: not on the flood risk listCB4 3QQ: not on the flood risk listCB4 3QR: not on the flood risk listCB4 3QS: not on the flood risk listCB4 3QT: not on the flood risk listCB4 3QU: not on the flood risk listCB4 3QW: not on the flood risk listCB4 3QX: not on the flood risk listCB4 3RA: not on the flood risk listCB4 3RB: not on the flood risk listCB4 3RD: not on the flood risk listCB4 3RE: not on the flood risk listCB4 3RF: not on the flood risk listCB4 3RG: not on the flood risk listCB4 3RH: not on the flood risk listCB4 3RJ: not on the flood risk listCB4 3RL: not on the flood risk listCB4 3RN: not on the flood risk listCB4 3RQ: not on the flood risk listCB4 3RR: not on the flood risk listCB4 3RS: not on the flood risk listCB4 3RT: not on the flood risk listCB4 3RU: not on the flood risk listCB4 3RW: not on the flood risk listCB4 3RX: not on the flood risk listCB4 3RY: not on the flood risk listCB4 3RZ: not on the flood risk listCB4 3SA: not on the flood risk listCB4 3SB: not on the flood risk listCB4 3SD: not on the flood risk listCB4 3SE: not on the flood risk listCB4 3SF: not on the flood risk listCB4 3SG: not on the flood risk listCB4 3SN: not on the flood risk listCB4 3SP: not on the flood risk listCB4 3SQ: not on the flood risk listCB4 3SR: not on the flood risk listCB4 3SS: not on the flood risk listCB4 3SW: not on the flood risk listCB4 3TA: not on the flood risk listCB4 3TB: not on the flood risk listCB4 3TD: not on the flood risk listCB4 3TJ: not on the flood risk listCB4 3XA: not on the flood risk listCB4 3XB: not on the flood risk listCB4 3XD: not on the flood risk listCB4 3XE: not on the flood risk listCB4 3XF: not on the flood risk listCB4 3XG: not on the flood risk listCB4 3XJ: not on the flood risk listCB4 3XL: not on the flood risk listCB4 3XN: not on the flood risk listCB4 3XP: not on the flood risk listCB4 3XQ: not on the flood risk listCB4 3XW: not on the flood risk listCB4 3YH: not on the flood risk listCB4 3BB: medium flood risk at worstCB4 3BN: medium flood risk at worstCB4 3AX: high flood riskCB4 3BD: high flood risk Cambridge Map of every postcode in the CB4 3 sector, by flood risk Of the 228 postcodes in the CB4 3 sector that ONS places, 2 have a home or business at high risk, 2 are at medium risk at worst and 224 are not on the Environment Agency's at-risk list. Places named: Cambridge. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. A1303A1309A603 Cambridge
  • A home or business at high risk: 2
  • At medium risk at worst: 2
  • At low risk at worst: 0
  • At very low risk only: 0
  • Not on the at-risk list: 224

Of the 228 postcodes in the CB4 3 sector that ONS places, 2 have a home or business at high risk, 2 are at medium risk at worst and 224 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.

CB4 3AX8 at high riskCB4 3BD3 at high risk

What do homes sell for in CB4 3?

Homes in CB4 3 sold for a typical £487,500 in the 12 months to August 2026, across 77 sales, up 2% on the 12 months before, HM Land Registry's figures show.

£487,500 typical price, the 12 months to August 2026
£478,100 12 months to August 2025
▲ up 2% on the 12 months before
  • Detached £805,000 6 sales
  • Semi-detached £500,000 24 sales
  • Terraced £545,000 29 sales
  • Flat or maisonette £250,250 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 CB4 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 CB4 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.

CB4 3AACB4 3ABCB4 3ADCB4 3AECB4 3AFCB4 3AGCB4 3AHCB4 3AJCB4 3ALCB4 3ANCB4 3APCB4 3AQCB4 3ARCB4 3AXCB4 3BACB4 3BBCB4 3BDCB4 3BECB4 3BFCB4 3BJCB4 3BLCB4 3BNCB4 3BPCB4 3BQCB4 3BSCB4 3BUCB4 3BWCB4 3BXCB4 3BYCB4 3BZCB4 3DACB4 3DBCB4 3DDCB4 3DFCB4 3DGCB4 3DHCB4 3DJCB4 3DLCB4 3DNCB4 3DQCB4 3DRCB4 3DSCB4 3DUCB4 3DWCB4 3DXCB4 3DZCB4 3EBCB4 3EDCB4 3EECB4 3EFCB4 3EHCB4 3EJCB4 3ELCB4 3ENCB4 3EPCB4 3ERCB4 3ESCB4 3ETCB4 3EUCB4 3EWCB4 3EXCB4 3EYCB4 3EZCB4 3FACB4 3FECB4 3FFCB4 3FUCB4 3FZCB4 3GHCB4 3GJCB4 3GPCB4 3GRCB4 3GYCB4 3HACB4 3HBCB4 3HDCB4 3HECB4 3HFCB4 3HGCB4 3HHCB4 3HJCB4 3HLCB4 3HNCB4 3HPCB4 3HQCB4 3HRCB4 3HSCB4 3HTCB4 3HUCB4 3HWCB4 3HXCB4 3JBCB4 3JDCB4 3JGCB4 3JHCB4 3JJCB4 3JLCB4 3JNCB4 3JPCB4 3JQCB4 3JRCB4 3JUCB4 3JWCB4 3JXCB4 3JYCB4 3JZCB4 3LACB4 3LBCB4 3LDCB4 3LECB4 3LFCB4 3LGCB4 3LHCB4 3LJCB4 3LLCB4 3LNCB4 3LPCB4 3LQCB4 3LRCB4 3LSCB4 3LTCB4 3LUCB4 3LWCB4 3LXCB4 3LYCB4 3LZCB4 3NACB4 3NBCB4 3NDCB4 3NECB4 3NFCB4 3NGCB4 3NHCB4 3NJCB4 3NLCB4 3NNCB4 3NPCB4 3NQCB4 3NTCB4 3NUCB4 3NWCB4 3NXCB4 3NYCB4 3NZCB4 3PACB4 3PBCB4 3PDCB4 3PECB4 3PFCB4 3PHCB4 3PJCB4 3PLCB4 3PNCB4 3PPCB4 3PRCB4 3PSCB4 3PTCB4 3PUCB4 3PWCB4 3PXCB4 3PYCB4 3PZCB4 3QACB4 3QBCB4 3QECB4 3QFCB4 3QGCB4 3QHCB4 3QJCB4 3QNCB4 3QPCB4 3QQCB4 3QRCB4 3QSCB4 3QTCB4 3QUCB4 3QWCB4 3QXCB4 3RACB4 3RBCB4 3RDCB4 3RECB4 3RFCB4 3RGCB4 3RHCB4 3RJCB4 3RLCB4 3RNCB4 3RQCB4 3RRCB4 3RSCB4 3RTCB4 3RUCB4 3RWCB4 3RXCB4 3RYCB4 3RZCB4 3SACB4 3SBCB4 3SDCB4 3SECB4 3SFCB4 3SGCB4 3SNCB4 3SPCB4 3SQCB4 3SRCB4 3SSCB4 3SWCB4 3TACB4 3TBCB4 3TDCB4 3TJCB4 3XACB4 3XBCB4 3XDCB4 3XECB4 3XFCB4 3XGCB4 3XHCB4 3XJCB4 3XLCB4 3XNCB4 3XPCB4 3XQCB4 3XWCB4 3YHCB4 3ZG

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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