CB11 3 postcode sector in the CB11 district

CB11 3 is a sector of the CB11 district: every postcode that starts CB11 3. It has 304 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 CB11 3 sector, by flood risk

Map of every postcode in the CB11 3 sector, by flood risk Of the 304 postcodes in the CB11 3 sector that ONS places, 14 have a home or business at high risk, 1 are at medium risk at worst, 16 are at low risk at worst and 273 are not on the Environment Agency's at-risk list. Places named: Saffron Walden, Newport, Uttlesford. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. CB11 3AB: not on the flood risk listCB11 3AD: not on the flood risk listCB11 3AF: not on the flood risk listCB11 3AH: not on the flood risk listCB11 3AJ: not on the flood risk listCB11 3AN: not on the flood risk listCB11 3AP: not on the flood risk listCB11 3AQ: not on the flood risk listCB11 3AS: not on the flood risk listCB11 3AT: not on the flood risk listCB11 3AU: not on the flood risk listCB11 3AW: not on the flood risk listCB11 3AY: not on the flood risk listCB11 3BA: not on the flood risk listCB11 3BH: not on the flood risk listCB11 3BL: not on the flood risk listCB11 3BN: not on the flood risk listCB11 3BP: not on the flood risk listCB11 3BS: not on the flood risk listCB11 3BU: not on the flood risk listCB11 3BY: not on the flood risk listCB11 3BZ: not on the flood risk listCB11 3DA: not on the flood risk listCB11 3DB: not on the flood risk listCB11 3DE: not on the flood risk listCB11 3DF: not on the flood risk listCB11 3DG: not on the flood risk listCB11 3DH: not on the flood risk listCB11 3DJ: not on the flood risk listCB11 3DL: not on the flood risk listCB11 3DN: not on the flood risk listCB11 3DQ: not on the flood risk listCB11 3DR: not on the flood risk listCB11 3DS: not on the flood risk listCB11 3DT: not on the flood risk listCB11 3DU: not on the flood risk listCB11 3DX: not on the flood risk listCB11 3DZ: not on the flood risk listCB11 3EA: not on the flood risk listCB11 3EF: not on the flood risk listCB11 3EH: not on the flood risk listCB11 3EJ: not on the flood risk listCB11 3EL: not on the flood risk listCB11 3EN: not on the flood risk listCB11 3EP: not on the flood risk listCB11 3EQ: not on the flood risk listCB11 3ER: not on the flood risk listCB11 3ES: not on the flood risk listCB11 3ET: not on the flood risk listCB11 3EU: not on the flood risk listCB11 3EW: not on the flood risk listCB11 3EX: not on the flood risk listCB11 3EY: not on the flood risk listCB11 3EZ: not on the flood risk listCB11 3FA: not on the flood risk listCB11 3FD: not on the flood risk listCB11 3FE: not on the flood risk listCB11 3FY: not on the flood risk listCB11 3GA: not on the flood risk listCB11 3GB: not on the flood risk listCB11 3GR: not on the flood risk listCB11 3GU: not on the flood risk listCB11 3GW: not on the flood risk listCB11 3GX: not on the flood risk listCB11 3GY: not on the flood risk listCB11 3GZ: not on the flood risk listCB11 3HB: not on the flood risk listCB11 3HD: not on the flood risk listCB11 3HE: not on the flood risk listCB11 3HL: not on the flood risk listCB11 3HP: not on the flood risk listCB11 3HQ: not on the flood risk listCB11 3HR: not on the flood risk listCB11 3HT: not on the flood risk listCB11 3HU: not on the flood risk listCB11 3HW: not on the flood risk listCB11 3HX: not on the flood risk listCB11 3HY: not on the flood risk listCB11 3JA: not on the flood risk listCB11 3JB: not on the flood risk listCB11 3JD: not on the flood risk listCB11 3JF: not on the flood risk listCB11 3JG: not on the flood risk listCB11 3JH: not on the flood risk listCB11 3JN: not on the flood risk listCB11 3JP: not on the flood risk listCB11 3JR: not on the flood risk listCB11 3JT: not on the flood risk listCB11 3JU: not on the flood risk listCB11 3JX: not on the flood risk listCB11 3JY: not on the flood risk listCB11 3LA: not on the flood risk listCB11 3LB: not on the flood risk listCB11 3LD: not on the flood risk listCB11 3LE: not on the flood risk listCB11 3LF: not on the flood risk listCB11 3LG: not on the flood risk listCB11 3LL: not on the flood risk listCB11 3LN: not on the flood risk listCB11 3LQ: not on the flood risk listCB11 3LS: not on the flood risk listCB11 3LT: not on the flood risk listCB11 3LU: not on the flood risk listCB11 3LW: not on the flood risk listCB11 3NA: not on the flood risk listCB11 3NB: not on the flood risk listCB11 3NN: not on the flood risk listCB11 3NP: not on the flood risk listCB11 3NR: not on the flood risk listCB11 3NS: not on the flood risk listCB11 3NT: not on the flood risk listCB11 3NU: not on the flood risk listCB11 3NW: not on the flood risk listCB11 3NX: not on the flood risk listCB11 3NY: not on the flood risk listCB11 3NZ: not on the flood risk listCB11 3PA: not on the flood risk listCB11 3PF: not on the flood risk listCB11 3PJ: not on the flood risk listCB11 3PP: not on the flood risk listCB11 3PQ: not on the flood risk listCB11 3PR: not on the flood risk listCB11 3PS: not on the flood risk listCB11 3PT: not on the flood risk listCB11 3PU: not on the flood risk listCB11 3PW: not on the flood risk listCB11 3PX: not on the flood risk listCB11 3PY: not on the flood risk listCB11 3PZ: not on the flood risk listCB11 3QA: not on the flood risk listCB11 3QB: not on the flood risk listCB11 3QD: not on the flood risk listCB11 3QE: not on the flood risk listCB11 3QF: not on the flood risk listCB11 3QG: not on the flood risk listCB11 3QH: not on the flood risk listCB11 3QL: not on the flood risk listCB11 3QN: not on the flood risk listCB11 3QP: not on the flood risk listCB11 3QQ: not on the flood risk listCB11 3QT: not on the flood risk listCB11 3QU: not on the flood risk listCB11 3QW: not on the flood risk listCB11 3QX: not on the flood risk listCB11 3RA: not on the flood risk listCB11 3RB: not on the flood risk listCB11 3RF: not on the flood risk listCB11 3RH: not on the flood risk listCB11 3RJ: not on the flood risk listCB11 3RP: not on the flood risk listCB11 3RQ: not on the flood risk listCB11 3RU: not on the flood risk listCB11 3RX: not on the flood risk listCB11 3RY: not on the flood risk listCB11 3SA: not on the flood risk listCB11 3SB: not on the flood risk listCB11 3SD: not on the flood risk listCB11 3SE: not on the flood risk listCB11 3SG: not on the flood risk listCB11 3SH: not on the flood risk listCB11 3SJ: not on the flood risk listCB11 3SL: not on the flood risk listCB11 3SN: not on the flood risk listCB11 3SP: not on the flood risk listCB11 3SQ: not on the flood risk listCB11 3SS: not on the flood risk listCB11 3ST: not on the flood risk listCB11 3SU: not on the flood risk listCB11 3SW: not on the flood risk listCB11 3SY: not on the flood risk listCB11 3SZ: not on the flood risk listCB11 3TB: not on the flood risk listCB11 3TE: not on the flood risk listCB11 3TF: not on the flood risk listCB11 3TG: not on the flood risk listCB11 3TN: not on the flood risk listCB11 3TP: not on the flood risk listCB11 3TQ: not on the flood risk listCB11 3TS: not on the flood risk listCB11 3TT: not on the flood risk listCB11 3TU: not on the flood risk listCB11 3TX: not on the flood risk listCB11 3TZ: not on the flood risk listCB11 3UA: not on the flood risk listCB11 3UD: not on the flood risk listCB11 3UE: not on the flood risk listCB11 3UH: not on the flood risk listCB11 3UJ: not on the flood risk listCB11 3UL: not on the flood risk listCB11 3UN: not on the flood risk listCB11 3UP: not on the flood risk listCB11 3UQ: not on the flood risk listCB11 3US: not on the flood risk listCB11 3UW: not on the flood risk listCB11 3WA: not on the flood risk listCB11 3WH: not on the flood risk listCB11 3WL: not on the flood risk listCB11 3WT: not on the flood risk listCB11 3XD: not on the flood risk listCB11 3XE: not on the flood risk listCB11 3XF: not on the flood risk listCB11 3XH: not on the flood risk listCB11 3XJ: not on the flood risk listCB11 3XL: not on the flood risk listCB11 3XN: not on the flood risk listCB11 3XQ: not on the flood risk listCB11 3XW: not on the flood risk listCB11 3XZ: not on the flood risk listCB11 3YB: not on the flood risk listCB11 3YD: not on the flood risk listCB11 3YF: not on the flood risk listCB11 3YG: not on the flood risk listCB11 3YH: not on the flood risk listCB11 3YJ: not on the flood risk listCB11 3YL: not on the flood risk listCB11 3YN: not on the flood risk listCB11 3YQ: not on the flood risk listCB11 3YW: not on the flood risk listCB11 3YZ: not on the flood risk listCB11 3ZD: not on the flood risk listCB11 3ZE: not on the flood risk listCB11 3ZF: not on the flood risk listCB11 3ZG: not on the flood risk listCB11 3ZP: not on the flood risk listCB11 3ZT: not on the flood risk listCB11 3ZU: not on the flood risk listCB11 3ZY: not on the flood risk listCB11 3AA: low flood risk at worstCB11 3AE: low flood risk at worstCB11 3AG: low flood risk at worstCB11 3BJ: low flood risk at worstCB11 3BQ: low flood risk at worstCB11 3DD: low flood risk at worstCB11 3ED: low flood risk at worstCB11 3EG: low flood risk at worstCB11 3JS: low flood risk at worstCB11 3LR: low flood risk at worstCB11 3LY: low flood risk at worstCB11 3LZ: low flood risk at worstCB11 3RG: low flood risk at worstCB11 3RN: low flood risk at worstCB11 3UF: low flood risk at worstCB11 3RZ: medium flood risk at worstCB11 3HS: high flood riskCB11 3HZ: high flood riskCB11 3LP: high flood riskCB11 3LX: high flood riskCB11 3PE: high flood riskCB11 3PG: high flood riskCB11 3PL: high flood riskCB11 3PN: high flood riskCB11 3RD: high flood riskCB11 3TH: high flood riskCB11 3TR: high flood riskCB11 3UG: high flood riskCB11 3XP: high flood riskCB11 3XR: high flood risk Saffron WaldenNewport, Uttlesford Map of every postcode in the CB11 3 sector, by flood risk Of the 304 postcodes in the CB11 3 sector that ONS places, 14 have a home or business at high risk, 1 are at medium risk at worst, 16 are at low risk at worst and 273 are not on the Environment Agency's at-risk list. Places named: Saffron Walden, Newport, Uttlesford. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 2.5 km. Saffron WaldenNewport, Uttlesford
  • A home or business at high risk: 14
  • At medium risk at worst: 1
  • At low risk at worst: 16
  • At very low risk only: 0
  • Not on the at-risk list: 273

Of the 304 postcodes in the CB11 3 sector that ONS places, 14 have a home or business at high risk, 1 are at medium risk at worst, 16 are at low risk at worst and 273 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

14 postcodes here have a home or business at high risk. These are the 12 with the most homes and businesses at that risk.

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

CB11 3HS46 at high riskCB11 3XP4 at high riskCB11 3LX3 at high riskCB11 3PE3 at high riskCB11 3HZ3 at high riskCB11 3TH2 at high riskCB11 3LP1 at high riskCB11 3PL1 at high riskCB11 3PN1 at high riskCB11 3XR1 at high riskCB11 3PG1 at high riskCB11 3RD1 at high risk

What do homes sell for in CB11 3?

Homes in CB11 3 sold for a typical £437,000 in the 12 months to August 2026, across 125 sales, down 6.3% on the 12 months before, HM Land Registry's figures show.

£437,000 typical price, the 12 months to August 2026
£466,225 12 months to August 2025
▼ down 6.3% on the 12 months before
  • Detached £667,500 37 sales
  • Semi-detached £530,000 35 sales
  • Terraced £365,000 27 sales
  • Flat or maisonette £235,000 26 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 CB11 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 CB11 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.

CB11 3AACB11 3ABCB11 3ADCB11 3AECB11 3AFCB11 3AGCB11 3AHCB11 3AJCB11 3ANCB11 3APCB11 3AQCB11 3ARCB11 3ASCB11 3ATCB11 3AUCB11 3AWCB11 3AYCB11 3AZCB11 3BACB11 3BHCB11 3BJCB11 3BLCB11 3BNCB11 3BPCB11 3BQCB11 3BSCB11 3BTCB11 3BUCB11 3BWCB11 3BXCB11 3BYCB11 3BZCB11 3DACB11 3DBCB11 3DDCB11 3DECB11 3DFCB11 3DGCB11 3DHCB11 3DJCB11 3DLCB11 3DNCB11 3DQCB11 3DRCB11 3DSCB11 3DTCB11 3DUCB11 3DWCB11 3DXCB11 3DZCB11 3EACB11 3EDCB11 3EECB11 3EFCB11 3EGCB11 3EHCB11 3EJCB11 3ELCB11 3ENCB11 3EPCB11 3EQCB11 3ERCB11 3ESCB11 3ETCB11 3EUCB11 3EWCB11 3EXCB11 3EYCB11 3EZCB11 3FACB11 3FBCB11 3FDCB11 3FECB11 3FUCB11 3FYCB11 3FZCB11 3GACB11 3GBCB11 3GLCB11 3GPCB11 3GRCB11 3GUCB11 3GWCB11 3GXCB11 3GYCB11 3GZCB11 3HBCB11 3HDCB11 3HECB11 3HFCB11 3HGCB11 3HLCB11 3HNCB11 3HPCB11 3HQCB11 3HRCB11 3HSCB11 3HTCB11 3HUCB11 3HWCB11 3HXCB11 3HYCB11 3HZCB11 3JACB11 3JBCB11 3JDCB11 3JECB11 3JFCB11 3JGCB11 3JHCB11 3JNCB11 3JPCB11 3JRCB11 3JSCB11 3JTCB11 3JUCB11 3JWCB11 3JXCB11 3JYCB11 3LACB11 3LBCB11 3LDCB11 3LECB11 3LFCB11 3LGCB11 3LHCB11 3LJCB11 3LLCB11 3LNCB11 3LPCB11 3LQCB11 3LRCB11 3LSCB11 3LTCB11 3LUCB11 3LWCB11 3LXCB11 3LYCB11 3LZCB11 3NACB11 3NBCB11 3NJCB11 3NLCB11 3NNCB11 3NPCB11 3NRCB11 3NSCB11 3NTCB11 3NUCB11 3NWCB11 3NXCB11 3NYCB11 3NZCB11 3PACB11 3PECB11 3PFCB11 3PGCB11 3PJCB11 3PLCB11 3PNCB11 3PPCB11 3PQCB11 3PRCB11 3PSCB11 3PTCB11 3PUCB11 3PWCB11 3PXCB11 3PYCB11 3PZCB11 3QACB11 3QBCB11 3QDCB11 3QECB11 3QFCB11 3QGCB11 3QHCB11 3QJCB11 3QLCB11 3QNCB11 3QPCB11 3QQCB11 3QRCB11 3QSCB11 3QTCB11 3QUCB11 3QWCB11 3QXCB11 3QYCB11 3QZCB11 3RACB11 3RBCB11 3RDCB11 3RECB11 3RFCB11 3RGCB11 3RHCB11 3RJCB11 3RNCB11 3RPCB11 3RQCB11 3RRCB11 3RSCB11 3RUCB11 3RWCB11 3RXCB11 3RYCB11 3RZCB11 3SACB11 3SBCB11 3SDCB11 3SECB11 3SFCB11 3SGCB11 3SHCB11 3SJCB11 3SLCB11 3SNCB11 3SPCB11 3SQCB11 3SRCB11 3SSCB11 3STCB11 3SUCB11 3SWCB11 3SYCB11 3SZCB11 3TBCB11 3TECB11 3TFCB11 3TGCB11 3THCB11 3TJCB11 3TLCB11 3TNCB11 3TPCB11 3TQCB11 3TRCB11 3TSCB11 3TTCB11 3TUCB11 3TWCB11 3TXCB11 3TZCB11 3UACB11 3UBCB11 3UDCB11 3UECB11 3UFCB11 3UGCB11 3UHCB11 3UJCB11 3ULCB11 3UNCB11 3UPCB11 3UQCB11 3USCB11 3UWCB11 3UZCB11 3WACB11 3WHCB11 3WLCB11 3WQCB11 3WTCB11 3XACB11 3XBCB11 3XDCB11 3XECB11 3XFCB11 3XGCB11 3XHCB11 3XJCB11 3XLCB11 3XNCB11 3XPCB11 3XQCB11 3XRCB11 3XWCB11 3XYCB11 3XZCB11 3YBCB11 3YDCB11 3YFCB11 3YGCB11 3YHCB11 3YJCB11 3YLCB11 3YNCB11 3YQCB11 3YWCB11 3YYCB11 3YZCB11 3ZACB11 3ZBCB11 3ZDCB11 3ZECB11 3ZFCB11 3ZGCB11 3ZHCB11 3ZLCB11 3ZPCB11 3ZTCB11 3ZUCB11 3ZY

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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