CH3 postcode district

Postcodes and sectors

1,112 of the district's 1,327 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 53.16476, -2.81981, which locates the district, not a building.

Companies registered in CH3

Companies House lists 2,390 companies with a registered office in CH3; 74 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 CH3

• North West
• Cheshire West and Chester
• Chester
• Tarvin
• Farndon
• Tattenhall
• Waverton
• Christleton
• Guilden Sutton
• Ashton Hayes
• Great Barrow
• Churton
• Clutton
• Aldford
• Littleton
• Hargrave
• Mouldsworth
• Saighton
• Burwardsley
• Tarvin Sands
• Huxley
• Milton Green
• Brown Knowl
• Oscroft

Roads filed under CH3

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.

• Abbotts Close
• Abbotts Road
• Adder Hill
• Alanbrooke Road
• Aldersey Lane
• Aldersey Oaks Grove
• Allansford Avenue
• Alma Street
• Andrew's Close
• Arden Close
• Arnhem Way
• Arrowcroft Road
• Artillery Road
• Ashley Gardens
• Ashton Lane
• Atkinson Drive
• Austins Hill
• Bachefield Avenue
• Bachelor's Lane
• Back Lane
• Badgers Close
• Ballater Crescent
• Barbour Square
• Barkhill Road
• Barley Croft
• Barnaby Chase
• Barnfield
• Barnhill Grange
• Barnhill Road
• Barnhouse Lane
• Barnston Court
• Barnston Mews
• Barracks Lane
• Barrel Well Hill
• Barrow Lane
• Barton Road
• Beachin Lane
• Beaconsfield Street
• Beckett's Lane
• Beechlands Avenue
• Belgrave Road
• Bellevue Lane
• Bewley Court
• Birch Heath Lane
• Birds Lane
• Bittern Close
• Blackhams Way
• Blackthorn Close
• Blenheim Court
• Bluebell Close
• Bolesworth Hill Road
• Bolesworth Road
• Booth Avenue
• Border Way
• Bostock Avenue
• Boughton
• Boughton Hall Avenue
• Boughton Hall Drive
• Braemar Close
• Bramble Close

Check an address in CH3

Check an address in CH3

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

curl "https://spaw.co/api/v1/address/streets?country=GB&postal_code=CH3" \
  -H "Authorization: Bearer $SPAW_KEY"

Common questions about CH3

What does a CH3 postcode tell you?

That the address lies in the CH3 district of the CH (Chester) postcode area, and the place OS Open Names most often lists first for its postcodes is Chester. The district alone does not place a street: the inward half of the full postcode narrows the address to one of the district's 1,112 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 CH3

• CH884.9 km
• CH26.8 km
• CH17.3 km
• CH707.5 km
• CH48.5 km
• CW610.2 km
• WA613.5 km
• CH6513.7 km
• LL1214.2 km
• CH6614.8 km
• SY1415.2 km
• CH515.4 km
• Every district
• How a British address is written
• Check any address

distance between the districts' centroids