CB4 postcode district

Postcodes and sectors

903 of the district's 2,524 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 52.22314, 0.12974, which locates the district, not a building.

Companies registered in CB4

Companies House lists 3,030 companies with a registered office in CB4; 296 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 CB4

• Cambridgeshire
• Eastern
• Cambridge
• South Cambridgeshire

Roads filed under CB4

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.

• Abbots Close
• Acrefield Drive
• Acton Way
• Aingers Lane
• Akeman Street
• Albemarle Way
• Albert Street
• Alex Wood Road
• Alice Bell Close
• Alpha Road
• Amwell Road
• Anglers Way
• Apollo Way
• Apthorpe Way
• Aragon Close
• Arbury Road
• Arden Road
• Armitage Way
• Arthur Street
• Arundel Close
• Ascham Road
• Ashfield Road
• Ashvale
• Aster Way
• Atherton Close
• Atkins Close
• Augustus Close
• Austin Court
• Aylesborough Close
• Aylestone Road
• Badminton Close
• Bagot Place
• Banff Close
• Banhams Close
• Barnard Way
• Basset Close
• Bateson Road
• Bayford Place
• Beales Way
• Beaulands Close
• Belmore Close
• Belvoir Road
• Benson Place
• Benson Street
• Bermuda Road
• Bermuda Terrace
• Birch Close
• Blackberry Way
• Blackhall Road
• Blackthorn Close
• Blandford Walk
• Borrowdale
• Bourne Road
• Brackley Close
• Bramley Court
• Brierley Walk
• Briggs Passage
• Brimley Road
• Brownlow Road
• Buchan Street

Check an address in CB4

Check an address in CB4

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

curl "https://spaw.co/api/v1/address/streets?country=GB&postal_code=CB4" \
  -H "Authorization: Bearer $SPAW_KEY"

Common questions about CB4

What does a CB4 postcode tell you?

That the address lies in the CB4 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 903 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 CB4

• CB52.2 km
• CB32.4 km
• CB13.2 km
• CB24.2 km
• CB247.1 km
• CB259.5 km
• CB2210.4 km
• CB2311.2 km
• CB2114.8 km
• PE2718.2 km
• SG820.2 km
• CB720.3 km
• Every district
• How a British address is written
• Check any address

distance between the districts' centroids