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, and which are new since 2020

Map of every postcode in the CB1 1 sector, by new since 2020 Of the 110 postcodes in the CB1 1 sector that ONS places, 2 are new since 2020 and 108 were in use before 2020. 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: before 2020CB1 1AJ: before 2020CB1 1AL: before 2020CB1 1AN: before 2020CB1 1AP: before 2020CB1 1AQ: before 2020CB1 1AR: before 2020CB1 1AS: before 2020CB1 1AZ: before 2020CB1 1BA: before 2020CB1 1BB: before 2020CB1 1BD: before 2020CB1 1BG: before 2020CB1 1BH: before 2020CB1 1BL: before 2020CB1 1BN: before 2020CB1 1BP: before 2020CB1 1BS: before 2020CB1 1BT: before 2020CB1 1BU: before 2020CB1 1BW: before 2020CB1 1BX: before 2020CB1 1BY: before 2020CB1 1DB: before 2020CB1 1DG: before 2020CB1 1DJ: before 2020CB1 1DP: before 2020CB1 1DR: before 2020CB1 1DS: before 2020CB1 1DT: before 2020CB1 1DU: before 2020CB1 1DW: before 2020CB1 1DX: before 2020CB1 1DY: before 2020CB1 1DZ: before 2020CB1 1EE: before 2020CB1 1EG: before 2020CB1 1EH: before 2020CB1 1EJ: before 2020CB1 1EL: before 2020CB1 1EQ: before 2020CB1 1ER: before 2020CB1 1ES: before 2020CB1 1EW: before 2020CB1 1EX: before 2020CB1 1EY: before 2020CB1 1EZ: before 2020CB1 1HA: before 2020CB1 1HE: before 2020CB1 1HP: before 2020CB1 1HQ: before 2020CB1 1HR: before 2020CB1 1HS: before 2020CB1 1HT: before 2020CB1 1HW: before 2020CB1 1HX: before 2020CB1 1HZ: before 2020CB1 1JA: before 2020CB1 1JE: before 2020CB1 1JF: before 2020CB1 1JG: before 2020CB1 1JH: before 2020CB1 1JJ: before 2020CB1 1JL: before 2020CB1 1JN: before 2020CB1 1JP: before 2020CB1 1JR: before 2020CB1 1JS: before 2020CB1 1JT: before 2020CB1 1JU: before 2020CB1 1JW: before 2020CB1 1JX: before 2020CB1 1JY: before 2020CB1 1JZ: before 2020CB1 1LA: before 2020CB1 1LB: before 2020CB1 1LD: before 2020CB1 1LE: before 2020CB1 1LF: before 2020CB1 1LG: before 2020CB1 1LH: before 2020CB1 1LJ: before 2020CB1 1LL: before 2020CB1 1LN: before 2020CB1 1LQ: before 2020CB1 1LR: before 2020CB1 1LS: before 2020CB1 1LY: before 2020CB1 1NA: before 2020CB1 1ND: before 2020CB1 1NE: before 2020CB1 1NL: before 2020CB1 1NP: before 2020CB1 1PA: before 2020CB1 1PN: before 2020CB1 1PR: before 2020CB1 1PS: before 2020CB1 1PT: before 2020CB1 1PW: before 2020CB1 1QA: before 2020CB1 1QB: before 2020CB1 1QD: before 2020CB1 1QE: before 2020CB1 1QF: before 2020CB1 1QG: before 2020CB1 1QH: before 2020CB1 1QJ: before 2020CB1 1QQ: before 2020CB1 1EB: new since 2020 Cambridge Map of every postcode in the CB1 1 sector, by new since 2020 Of the 110 postcodes in the CB1 1 sector that ONS places, 2 are new since 2020 and 108 were in use before 2020. 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
  • New since 2020: 2
  • In use before 2020: 108

Of the 110 postcodes in the CB1 1 sector that ONS places, 2 are new since 2020 and 108 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. 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; 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 2 newest postcodes

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.

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

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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