CH1 postcode district

Postcodes and sectors

1,053 of the district's 2,025 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 53.20268, -2.90999, which locates the district, not a building.

Companies registered in CH1

Companies House lists 4,163 companies with a registered office in CH1; 903 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 CH1

• Cheshire West and Chester
• North West
• Chester
• Saughall
• Mollington
• Sir y Fflint
• Flintshire
• Wales
• Ellesmere Port
• Capenhurst
• Backford
• Lea by Backford
• Shotwick
• Woodbank
• Sealand

Roads filed under CH1

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 Green
• Abbey Square
• Abbey Street
• Abbots Knoll
• Abbots Park
• Aberdaron Drive
• Adelaide Road
• Albert Street
• Albion Place
• Albion Street
• Alderley Place
• Aldersey Close
• Anvil Close
• Aragon Green
• Archers Way
• Arthur Street
• Ashbery Road
• Ashfield Crescent
• Ashmuir Close
• Aspen Grove
• Auckland Road
• Backford Gardens
• Back Queen Street
• Ballerat Close
• Balmoral Park
• Barnes Close
• Bath Street
• Beaumaris Grove
• Bedward Row
• Beechmuir
• Belgrave Street
• Bell Tower Walk
• Belvedere Drive
• Birchmuir
• Black Diamond Park
• Black Diamond Street
• Black Friars
• Blacon Avenue
• Blacon Hall Road
• Blacon Point Road
• Blake Close
• Blencowe Close
• Bold Place
• Bold Square
• Boleyn Close
• Bouverie Street
• Brennus Place
• Brentwood Road
• Bridgeman Road
• Bridge Street
• Bridle Lane
• Brisbane Road
• Bristol Close
• Bronte Walk
• Brookdale Place
• Brook Street
• Browning Close
• Bumper's Lane
• Bunce Street
• Burgess Drive

Check an address in CH1

Check an address in CH1

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

curl "https://spaw.co/api/v1/address/streets?country=GB&postal_code=CH1" \
  -H "Authorization: Bearer $SPAW_KEY"

Common questions about CH1

What does a CH1 postcode tell you?

That the address lies in the CH1 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 1,053 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 CH1

• CH701.4 km
• CH882.5 km
• CH23.2 km
• CH44.8 km
• CH37.3 km
• CH658.3 km
• CH668.5 km
• CH58.7 km
• CH6413.2 km
• LL1213.8 km
• WA614.5 km
• CH715.2 km
• Every district
• How a British address is written
• Check any address

distance between the districts' centroids