CB1 1 postcode sector in the CB1 district

CB1 1 is a sector of the CB1 district: every postcode that starts CB1 1. It has 110 postcodes in use, 11 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 CB1 1 sector, by flood risk

Map of every postcode in the CB1 1 sector, by flood risk Of the 110 postcodes in the CB1 1 sector that ONS places, 1 have a home or business at high risk and 109 are not on the Environment Agency's at-risk list. One postcode lies beyond the edge and is listed under the map. Places named: Cambridge. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A603 CB1 1AH: not on the flood risk listCB1 1AJ: not on the flood risk listCB1 1AL: not on the flood risk listCB1 1AN: not on the flood risk listCB1 1AP: not on the flood risk listCB1 1AQ: not on the flood risk listCB1 1AR: not on the flood risk listCB1 1AS: not on the flood risk listCB1 1AZ: not on the flood risk listCB1 1BA: not on the flood risk listCB1 1BB: not on the flood risk listCB1 1BD: not on the flood risk listCB1 1BG: not on the flood risk listCB1 1BH: not on the flood risk listCB1 1BL: not on the flood risk listCB1 1BN: not on the flood risk listCB1 1BP: not on the flood risk listCB1 1BS: not on the flood risk listCB1 1BT: not on the flood risk listCB1 1BU: not on the flood risk listCB1 1BW: not on the flood risk listCB1 1BX: not on the flood risk listCB1 1BY: not on the flood risk listCB1 1DB: not on the flood risk listCB1 1DG: not on the flood risk listCB1 1DJ: not on the flood risk listCB1 1DP: not on the flood risk listCB1 1DR: not on the flood risk listCB1 1DS: not on the flood risk listCB1 1DT: not on the flood risk listCB1 1DU: not on the flood risk listCB1 1DW: not on the flood risk listCB1 1DX: not on the flood risk listCB1 1DY: not on the flood risk listCB1 1DZ: not on the flood risk listCB1 1EB: not on the flood risk listCB1 1EE: not on the flood risk listCB1 1EG: not on the flood risk listCB1 1EH: not on the flood risk listCB1 1EJ: not on the flood risk listCB1 1EL: not on the flood risk listCB1 1EQ: not on the flood risk listCB1 1ER: not on the flood risk listCB1 1ES: not on the flood risk listCB1 1EW: not on the flood risk listCB1 1EX: not on the flood risk listCB1 1EY: not on the flood risk listCB1 1EZ: not on the flood risk listCB1 1HE: not on the flood risk listCB1 1HP: not on the flood risk listCB1 1HQ: not on the flood risk listCB1 1HR: not on the flood risk listCB1 1HS: not on the flood risk listCB1 1HT: not on the flood risk listCB1 1HW: not on the flood risk listCB1 1HX: not on the flood risk listCB1 1HZ: not on the flood risk listCB1 1JA: not on the flood risk listCB1 1JE: not on the flood risk listCB1 1JF: not on the flood risk listCB1 1JG: not on the flood risk listCB1 1JH: not on the flood risk listCB1 1JJ: not on the flood risk listCB1 1JL: not on the flood risk listCB1 1JN: not on the flood risk listCB1 1JP: not on the flood risk listCB1 1JR: not on the flood risk listCB1 1JS: not on the flood risk listCB1 1JT: not on the flood risk listCB1 1JU: not on the flood risk listCB1 1JW: not on the flood risk listCB1 1JX: not on the flood risk listCB1 1JY: not on the flood risk listCB1 1JZ: not on the flood risk listCB1 1LA: not on the flood risk listCB1 1LB: not on the flood risk listCB1 1LD: not on the flood risk listCB1 1LE: not on the flood risk listCB1 1LF: not on the flood risk listCB1 1LG: not on the flood risk listCB1 1LH: not on the flood risk listCB1 1LJ: not on the flood risk listCB1 1LL: not on the flood risk listCB1 1LN: not on the flood risk listCB1 1LQ: not on the flood risk listCB1 1LR: not on the flood risk listCB1 1LS: not on the flood risk listCB1 1LY: not on the flood risk listCB1 1NA: not on the flood risk listCB1 1ND: not on the flood risk listCB1 1NE: not on the flood risk listCB1 1NL: not on the flood risk listCB1 1NP: not on the flood risk listCB1 1PA: not on the flood risk listCB1 1PN: not on the flood risk listCB1 1PR: not on the flood risk listCB1 1PS: not on the flood risk listCB1 1PT: not on the flood risk listCB1 1PW: not on the flood risk listCB1 1QA: not on the flood risk listCB1 1QB: not on the flood risk listCB1 1QD: not on the flood risk listCB1 1QE: not on the flood risk listCB1 1QF: not on the flood risk listCB1 1QG: not on the flood risk listCB1 1QH: not on the flood risk listCB1 1QJ: not on the flood risk listCB1 1QQ: not on the flood risk listCB1 1HA: high flood risk Cambridge Map of every postcode in the CB1 1 sector, by flood risk Of the 110 postcodes in the CB1 1 sector that ONS places, 1 have a home or business at high risk and 109 are not on the Environment Agency's at-risk list. One postcode lies beyond the edge and is listed under the map. Places named: Cambridge. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. Cambridge
  • 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: 0
  • Not on the at-risk list: 109

Of the 110 postcodes in the CB1 1 sector that ONS places, 1 have a home or business at high risk and 109 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.

CB1 1HA3 at high risk

Further out, not drawn

This postcode lies well apart from the rest, so the map is drawn without it to show the rest closer; it is in every count.

CB1 1EA

What do homes sell for in CB1 1?

Homes in CB1 1 sold for a typical £553,663 in the 12 months to August 2026, across 28 sales, down 15.5% on the 12 months before, HM Land Registry's figures show.

£553,663 typical price, the 12 months to August 2026
£655,000 12 months to August 2025
▼ down 15.5% on the 12 months before
  • Terraced £745,000 15 sales
  • Flat or maisonette £304,000 13 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 CB1 1. 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 CB1 1

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.

CB1 1AHCB1 1AJCB1 1ALCB1 1ANCB1 1APCB1 1AQCB1 1ARCB1 1ASCB1 1AZCB1 1BACB1 1BBCB1 1BDCB1 1BGCB1 1BHCB1 1BLCB1 1BNCB1 1BPCB1 1BSCB1 1BTCB1 1BUCB1 1BWCB1 1BXCB1 1BYCB1 1DBCB1 1DGCB1 1DJCB1 1DPCB1 1DRCB1 1DSCB1 1DTCB1 1DUCB1 1DWCB1 1DXCB1 1DYCB1 1DZCB1 1EACB1 1EBCB1 1EECB1 1EGCB1 1EHCB1 1EJCB1 1ELCB1 1EQCB1 1ERCB1 1ESCB1 1EWCB1 1EXCB1 1EYCB1 1EZCB1 1HACB1 1HECB1 1HPCB1 1HQCB1 1HRCB1 1HSCB1 1HTCB1 1HWCB1 1HXCB1 1HZCB1 1JACB1 1JECB1 1JFCB1 1JGCB1 1JHCB1 1JJCB1 1JLCB1 1JNCB1 1JPCB1 1JRCB1 1JSCB1 1JTCB1 1JUCB1 1JWCB1 1JXCB1 1JYCB1 1JZCB1 1LACB1 1LBCB1 1LDCB1 1LECB1 1LFCB1 1LGCB1 1LHCB1 1LJCB1 1LLCB1 1LNCB1 1LQCB1 1LRCB1 1LSCB1 1LYCB1 1NACB1 1NDCB1 1NECB1 1NLCB1 1NPCB1 1PACB1 1PNCB1 1PRCB1 1PSCB1 1PTCB1 1PWCB1 1QACB1 1QBCB1 1QDCB1 1QECB1 1QFCB1 1QGCB1 1QHCB1 1QJCB1 1QQ

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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