CB1 postcode district

Postcodes and sectors

1,159 of the district's 2,788 postcodes are live in the ONS Postcode Directory of August 2026. A postcode directory says whether a code is in use, never who is there. The live postcodes centre on 52.19521, 0.14149, which locates the district, not a building.

Companies registered in CB1

Companies House lists 4,629 companies with a registered office in CB1; 1,632 of them at addresses shared by 25 or more companies (1 October 2026 snapshot). 25 is the count at which the address lookup reports a company cluster.

Places OS Open Names lists for CB1

• Cambridgeshire
• Eastern
• Cambridge
• South Cambridgeshire
• Cambourne
• Teversham
• Quy Waters

Roads filed under CB1

Named roads first, then numbered ones. A road is filed under one district even where it runs through several, so a street missing here may be listed under a neighbouring district — which is why the address lookup never calls a British street absent. Great Britain has no open register of buildings, so a listed road never means a building on it exists.

• Abbey Street
• Abbey Walk
• Adam and Eve Street
• Ainsdale
• Ainsworth Court
• Ainsworth Place
• Ainsworth Street
• Airport Way
• Alfred Close
• Alliance Court
• Almoners' Avenue
• Alwyne Road
• Ancaster Way
• Angus Close
• Antelope Way
• Applewood Close
• Argyle Street
• Arran Close
• Ashbury Close
• Augers Road
• Babraham Crescent
• Baldock Way
• Bancroft Close
• Baycliffe Close
• Beaumont Crescent
• Beaumont Road
• Belgrave Road
• Belmont Place
• Birdwood Road
• Blenheim Close
• Blinco Grove
• Bliss Way
• Blossom Street
• Borley Way
• Bosworth Road
• Bowers Croft
• Brackyn Road
• Bradmore Court
• Bradmore Lane
• Bradmore Street
• Brampton Road
• Brandon Place
• Braybrooke Place
• Bridewell Road
• Brigettine Square
• Britannic Way
• Britten Place
• Broad Street
• Brookfields
• Brookgate
• Brooks Road
• Brothers Place
• Broxbourne Close
• Budleigh Close
• Buffalo Way
• Bullen Close
• Burleigh Place
• Burleigh Street
• Burnham Close
• Burnside

Check an address in CB1

Check an address in CB1

The same road list through the API, from the outward code alone:

curl "https://spaw.co/api/v1/address/streets?country=GB&postal_code=CB1" \
  -H "Authorization: Bearer $SPAW_KEY"

Common questions about CB1

What does a CB1 postcode tell you?

That the address lies in the CB1 district of the CB (Cambridge) postcode area, and the place OS Open Names most often lists first for its postcodes is Cambridge. The district alone does not place a street: the inward half of the full postcode narrows the address to one of the district's 1,159 live postcodes.

Where the counts come from

• ons-postcode-directory · version 2026-08 · Contains ONS, OS and Royal Mail data © Crown copyright and database right 2026, Open Government Licence v3.0. Northern Ireland postcodes are excluded: their reuse needs a Land & Property Services licence.
• os-open-names · version 2026-11-01 · Contains OS data © Crown copyright and database right 2026, Open Government Licence v3.0.
• uk-companies-house · version 2026-10-01 · Companies House free company data product, Open Government Licence v3.0

What each figure means, and what a district page never says, is set out in Reading a British postcode district page; the glossary defines a postcode district, a postcode area, a postcode directory and a street register.

Data synced on 2026-11-01: the newest version among the datasets listed above.

Districts nearest CB1

• CB21.7 km
• CB52.2 km
• CB43.2 km
• CB33.6 km
• CB227.3 km
• CB2410.2 km
• CB2510.6 km
• CB2112.1 km
• CB2312.2 km
• SG818.0 km
• CB820.0 km
• CB1020.2 km
• Every district
• How a British address is written
• Check any address

distance between the districts' centroids