CO3 4 postcode sector in the CO3 district

CO3 4 is a sector of the CO3 district: every postcode that starts CO3 4. It has 182 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 CO3 4 sector, by flood risk

Map of every postcode in the CO3 4 sector, by flood risk Of the 182 postcodes in the CO3 4 sector that ONS places, 1 have a home or business at high risk, 1 are at very low risk only and 180 are not on the Environment Agency's at-risk list. Places named: Prettygate. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. A12A133 CO3 4AA: not on the flood risk listCO3 4AB: not on the flood risk listCO3 4AD: not on the flood risk listCO3 4AE: not on the flood risk listCO3 4AF: not on the flood risk listCO3 4AG: not on the flood risk listCO3 4AH: not on the flood risk listCO3 4AJ: not on the flood risk listCO3 4AL: not on the flood risk listCO3 4AN: not on the flood risk listCO3 4AS: not on the flood risk listCO3 4AU: not on the flood risk listCO3 4BH: not on the flood risk listCO3 4BJ: not on the flood risk listCO3 4BL: not on the flood risk listCO3 4BN: not on the flood risk listCO3 4BP: not on the flood risk listCO3 4BS: not on the flood risk listCO3 4BT: not on the flood risk listCO3 4BU: not on the flood risk listCO3 4BZ: not on the flood risk listCO3 4DA: not on the flood risk listCO3 4DB: not on the flood risk listCO3 4DD: not on the flood risk listCO3 4DE: not on the flood risk listCO3 4DF: not on the flood risk listCO3 4DG: not on the flood risk listCO3 4DH: not on the flood risk listCO3 4DJ: not on the flood risk listCO3 4DL: not on the flood risk listCO3 4DP: not on the flood risk listCO3 4DQ: not on the flood risk listCO3 4DT: not on the flood risk listCO3 4DU: not on the flood risk listCO3 4DX: not on the flood risk listCO3 4DZ: not on the flood risk listCO3 4EA: not on the flood risk listCO3 4ED: not on the flood risk listCO3 4EE: not on the flood risk listCO3 4EF: not on the flood risk listCO3 4EG: not on the flood risk listCO3 4EH: not on the flood risk listCO3 4EJ: not on the flood risk listCO3 4EL: not on the flood risk listCO3 4EN: not on the flood risk listCO3 4EP: not on the flood risk listCO3 4EQ: not on the flood risk listCO3 4ER: not on the flood risk listCO3 4EW: not on the flood risk listCO3 4HA: not on the flood risk listCO3 4HB: not on the flood risk listCO3 4HD: not on the flood risk listCO3 4HE: not on the flood risk listCO3 4HF: not on the flood risk listCO3 4HG: not on the flood risk listCO3 4HH: not on the flood risk listCO3 4HJ: not on the flood risk listCO3 4HL: not on the flood risk listCO3 4HN: not on the flood risk listCO3 4HP: not on the flood risk listCO3 4HQ: not on the flood risk listCO3 4HR: not on the flood risk listCO3 4HU: not on the flood risk listCO3 4HW: not on the flood risk listCO3 4HX: not on the flood risk listCO3 4HZ: not on the flood risk listCO3 4JA: not on the flood risk listCO3 4JB: not on the flood risk listCO3 4JD: not on the flood risk listCO3 4JE: not on the flood risk listCO3 4JG: not on the flood risk listCO3 4JH: not on the flood risk listCO3 4JJ: not on the flood risk listCO3 4JL: not on the flood risk listCO3 4JN: not on the flood risk listCO3 4JP: not on the flood risk listCO3 4JR: not on the flood risk listCO3 4JX: not on the flood risk listCO3 4JY: not on the flood risk listCO3 4JZ: not on the flood risk listCO3 4LA: not on the flood risk listCO3 4LB: not on the flood risk listCO3 4LD: not on the flood risk listCO3 4LE: not on the flood risk listCO3 4LF: not on the flood risk listCO3 4LG: not on the flood risk listCO3 4LH: not on the flood risk listCO3 4LJ: not on the flood risk listCO3 4LL: not on the flood risk listCO3 4LN: not on the flood risk listCO3 4LP: not on the flood risk listCO3 4LR: not on the flood risk listCO3 4LS: not on the flood risk listCO3 4LT: not on the flood risk listCO3 4LU: not on the flood risk listCO3 4LX: not on the flood risk listCO3 4LY: not on the flood risk listCO3 4NE: not on the flood risk listCO3 4NF: not on the flood risk listCO3 4NG: not on the flood risk listCO3 4NH: not on the flood risk listCO3 4NJ: not on the flood risk listCO3 4NL: not on the flood risk listCO3 4NN: not on the flood risk listCO3 4NP: not on the flood risk listCO3 4NQ: not on the flood risk listCO3 4NR: not on the flood risk listCO3 4NS: not on the flood risk listCO3 4NT: not on the flood risk listCO3 4NU: not on the flood risk listCO3 4NW: not on the flood risk listCO3 4NX: not on the flood risk listCO3 4NY: not on the flood risk listCO3 4NZ: not on the flood risk listCO3 4PA: not on the flood risk listCO3 4PB: not on the flood risk listCO3 4PD: not on the flood risk listCO3 4PE: not on the flood risk listCO3 4PG: not on the flood risk listCO3 4PH: not on the flood risk listCO3 4PJ: not on the flood risk listCO3 4PQ: not on the flood risk listCO3 4PS: not on the flood risk listCO3 4PZ: not on the flood risk listCO3 4QD: not on the flood risk listCO3 4QE: not on the flood risk listCO3 4QF: not on the flood risk listCO3 4QG: not on the flood risk listCO3 4QH: not on the flood risk listCO3 4QJ: not on the flood risk listCO3 4QL: not on the flood risk listCO3 4QN: not on the flood risk listCO3 4QP: not on the flood risk listCO3 4QQ: not on the flood risk listCO3 4QR: not on the flood risk listCO3 4QS: not on the flood risk listCO3 4QT: not on the flood risk listCO3 4QW: not on the flood risk listCO3 4QX: not on the flood risk listCO3 4RA: not on the flood risk listCO3 4RB: not on the flood risk listCO3 4RD: not on the flood risk listCO3 4RE: not on the flood risk listCO3 4RF: not on the flood risk listCO3 4RG: not on the flood risk listCO3 4RH: not on the flood risk listCO3 4RJ: not on the flood risk listCO3 4RL: not on the flood risk listCO3 4RN: not on the flood risk listCO3 4RP: not on the flood risk listCO3 4RQ: not on the flood risk listCO3 4RT: not on the flood risk listCO3 4RU: not on the flood risk listCO3 4RW: not on the flood risk listCO3 4RX: not on the flood risk listCO3 4RY: not on the flood risk listCO3 4RZ: not on the flood risk listCO3 4SA: not on the flood risk listCO3 4SB: not on the flood risk listCO3 4SD: not on the flood risk listCO3 4SE: not on the flood risk listCO3 4SF: not on the flood risk listCO3 4SG: not on the flood risk listCO3 4SH: not on the flood risk listCO3 4SJ: not on the flood risk listCO3 4SL: not on the flood risk listCO3 4SN: not on the flood risk listCO3 4SP: not on the flood risk listCO3 4SQ: not on the flood risk listCO3 4SR: not on the flood risk listCO3 4SS: not on the flood risk listCO3 4ST: not on the flood risk listCO3 4SU: not on the flood risk listCO3 4SW: not on the flood risk listCO3 4SX: not on the flood risk listCO3 4SZ: not on the flood risk listCO3 4TA: not on the flood risk listCO3 4TB: not on the flood risk listCO3 4TD: not on the flood risk listCO3 4AZ: very low flood risk onlyCO3 4AR: high flood risk Prettygate Map of every postcode in the CO3 4 sector, by flood risk Of the 182 postcodes in the CO3 4 sector that ONS places, 1 have a home or business at high risk, 1 are at very low risk only and 180 are not on the Environment Agency's at-risk list. Places named: Prettygate. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. A12A133 Prettygate
  • A home or business at high risk: 1
  • At medium risk at worst: 0
  • At low risk at worst: 0
  • At very low risk only: 1
  • Not on the at-risk list: 180

Of the 182 postcodes in the CO3 4 sector that ONS places, 1 have a home or business at high risk, 1 are at very low risk only and 180 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. 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; 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.

CO3 4AR4 at high risk

What do homes sell for in CO3 4?

Homes in CO3 4 sold for a typical £389,250 in the 12 months to August 2026, across 74 sales, down 0.3% on the 12 months before, HM Land Registry's figures show.

£389,250 typical price, the 12 months to August 2026
£390,250 12 months to August 2025
▼ down 0.3% on the 12 months before
  • Detached £464,500 38 sales
  • Semi-detached £350,000 29 sales
  • Terraced 4 sales, too few to price
  • Flat or maisonette 3 sales, too few to price

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 CO3 4. 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 CO3 4

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.

CO3 4AACO3 4ABCO3 4ADCO3 4AECO3 4AFCO3 4AGCO3 4AHCO3 4AJCO3 4ALCO3 4ANCO3 4ARCO3 4ASCO3 4AUCO3 4AZCO3 4BHCO3 4BJCO3 4BLCO3 4BNCO3 4BPCO3 4BSCO3 4BTCO3 4BUCO3 4BZCO3 4DACO3 4DBCO3 4DDCO3 4DECO3 4DFCO3 4DGCO3 4DHCO3 4DJCO3 4DLCO3 4DPCO3 4DQCO3 4DTCO3 4DUCO3 4DXCO3 4DZCO3 4EACO3 4EDCO3 4EECO3 4EFCO3 4EGCO3 4EHCO3 4EJCO3 4ELCO3 4ENCO3 4EPCO3 4EQCO3 4ERCO3 4EWCO3 4HACO3 4HBCO3 4HDCO3 4HECO3 4HFCO3 4HGCO3 4HHCO3 4HJCO3 4HLCO3 4HNCO3 4HPCO3 4HQCO3 4HRCO3 4HUCO3 4HWCO3 4HXCO3 4HZCO3 4JACO3 4JBCO3 4JDCO3 4JECO3 4JGCO3 4JHCO3 4JJCO3 4JLCO3 4JNCO3 4JPCO3 4JRCO3 4JXCO3 4JYCO3 4JZCO3 4LACO3 4LBCO3 4LDCO3 4LECO3 4LFCO3 4LGCO3 4LHCO3 4LJCO3 4LLCO3 4LNCO3 4LPCO3 4LRCO3 4LSCO3 4LTCO3 4LUCO3 4LXCO3 4LYCO3 4NECO3 4NFCO3 4NGCO3 4NHCO3 4NJCO3 4NLCO3 4NNCO3 4NPCO3 4NQCO3 4NRCO3 4NSCO3 4NTCO3 4NUCO3 4NWCO3 4NXCO3 4NYCO3 4NZCO3 4PACO3 4PBCO3 4PDCO3 4PECO3 4PGCO3 4PHCO3 4PJCO3 4PQCO3 4PSCO3 4PZCO3 4QACO3 4QDCO3 4QECO3 4QFCO3 4QGCO3 4QHCO3 4QJCO3 4QLCO3 4QNCO3 4QPCO3 4QQCO3 4QRCO3 4QSCO3 4QTCO3 4QWCO3 4QXCO3 4RACO3 4RBCO3 4RDCO3 4RECO3 4RFCO3 4RGCO3 4RHCO3 4RJCO3 4RLCO3 4RNCO3 4RPCO3 4RQCO3 4RTCO3 4RUCO3 4RWCO3 4RXCO3 4RYCO3 4RZCO3 4SACO3 4SBCO3 4SDCO3 4SECO3 4SFCO3 4SGCO3 4SHCO3 4SJCO3 4SLCO3 4SNCO3 4SPCO3 4SQCO3 4SRCO3 4SSCO3 4STCO3 4SUCO3 4SWCO3 4SXCO3 4SZCO3 4TACO3 4TBCO3 4TD

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.

Check a postcode

Something wrong on this page? Report an error and we will check it against the source.