CB3 1 postcode sector in the CB3 district

CB3 1 is a sector of the CB3 district: every postcode that starts CB3 1. It has 40 postcodes in use.

Not sure what a sector is? UK postcode format explained.

Every postcode in the CB3 1 sector, and which are new since 2020

Map of every postcode in the CB3 1 sector, by new since 2020 Of the 40 postcodes in the CB3 1 sector that ONS places, 20 are new since 2020 and 20 were in use before 2020. One group of new postcodes is outlined: 14 new postcodes since 2020. Places named: Castle, Girton. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. M11A1307 CB3 1AA: before 2020CB3 1AB: before 2020CB3 1AD: before 2020CB3 1AE: before 2020CB3 1AF: before 2020CB3 1AG: before 2020CB3 1AQ: before 2020CB3 1AR: before 2020CB3 1AS: before 2020CB3 1AT: before 2020CB3 1AU: before 2020CB3 1AX: before 2020CB3 1BD: before 2020CB3 1BF: before 2020CB3 1BG: before 2020CB3 1BH: before 2020CB3 1SE: before 2020CB3 1TU: before 2020CB3 1TY: before 2020CB3 1TZ: before 2020CB3 1AW: new since 2020CB3 1AY: new since 2020CB3 1AZ: new since 2020CB3 1BA: new since 2020CB3 1BB: new since 2020CB3 1BE: new since 2020CB3 1BJ: new since 2020CB3 1BL: new since 2020CB3 1BQ: new since 2020CB3 1BR: new since 2020CB3 1BS: new since 2020CB3 1BT: new since 2020CB3 1BU: new since 2020CB3 1BW: new since 2020CB3 1BX: new since 2020CB3 1BY: new since 2020CB3 1BZ: new since 2020CB3 1DA: new since 2020CB3 1DB: new since 2020CB3 1TT: new since 2020 CastleGirton 14 new postcodes since 2020, outlined: this goes to CB3 1BW, the newest of them14 new postcodes since 2020 Map of every postcode in the CB3 1 sector, by new since 2020 Of the 40 postcodes in the CB3 1 sector that ONS places, 20 are new since 2020 and 20 were in use before 2020. One group of new postcodes is outlined: 14 new postcodes since 2020. Places named: Castle, Girton. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. CastleGirton 14 new postcodes since 2020, outlined: this goes to CB3 1BW, the newest of them14 new postcodes since 2020
  • New since 2020: 20
  • In use before 2020: 20
  • Outline: where 5 or more new postcodes since 2020 lie together

Of the 40 postcodes in the CB3 1 sector that ONS places, 20 are new since 2020 and 20 were in use before 2020.

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. New since 2020 means it came into use in January 2020 or later. A dashed outline shows where 5 or more lie within 150 metres of each other. It is not a boundary, and no boundary is drawn. 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; when each came into use: the same directory; 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 5 newest postcodes

CB3 1BWFebruary 2026CB3 1BZJanuary 2026CB3 1DBJanuary 2026CB3 1BYNovember 2025CB3 1BJSeptember 2025

Where the new postcodes lie together

  • 14 new postcodes since 2020, outlined on the map. CB3 1BW, is the newest of them.

What do homes sell for in CB3 1?

Homes in CB3 1 sold for a typical £547,450 in the 12 months to August 2026, across 9 sales, down 4.8% on the 12 months before, HM Land Registry's figures show.

£547,450 typical price, the 12 months to August 2026
£574,950 12 months to August 2025
▼ down 4.8% on the 12 months before
  • Flat or maisonette £547,450 9 sales

Standard sales of homes at market value at the postcodes that start CB3 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 CB3 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.

CB3 1AACB3 1ABCB3 1ADCB3 1AECB3 1AFCB3 1AGCB3 1AQCB3 1ARCB3 1ASCB3 1ATCB3 1AUCB3 1AWCB3 1AXCB3 1AYCB3 1AZCB3 1BACB3 1BBCB3 1BDCB3 1BECB3 1BFCB3 1BGCB3 1BHCB3 1BJCB3 1BLCB3 1BQCB3 1BRCB3 1BSCB3 1BTCB3 1BUCB3 1BWCB3 1BXCB3 1BYCB3 1BZCB3 1DACB3 1DBCB3 1SECB3 1TTCB3 1TUCB3 1TYCB3 1TZ

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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