CH43 postcode district

Postcodes and sectors

934 of the district's 1,087 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 53.38440, -3.05964, which locates the district, not a building.

Companies registered in CH43

Companies House lists 1,161 companies with a registered office in CH43; 43 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 CH43

• Wirral
• North West
• Birkenhead

Roads filed under CH43

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.

• Abbot Close
• Addenbrook Close
• Airdale Close
• Alastair Crescent
• Aldford Close
• Alexandra Road
• Alfred Road
• Allonby Close
• Alton Road
• Alvanley Place
• Anthorn Close
• Arkle Road
• Arley Close
• Arno Road
• Arnside Road
• Ashburton Avenue
• Ashburton Road
• Ashwood Court
• Aston Close
• Audlem Avenue
• Avelon Close
• Aylesbury Avenue
• Backford Close
• Badger Way
• Balfour Road
• Ball's Road
• Ballantyne Drive
• Ballantyne Walk
• Balliol Close
• Balmoral Grove
• Banbury Way
• Barford Close
• Barnard Road
• Barren Grove
• Bassenthwaite Avenue
• Beechwood Drive
• Beeston Close
• Belfield Drive
• Benbow Close
• Bennetts Hill
• Bentham Close
• Bentley Road
• Beresford Close
• Beresford Road
• Berkeley Avenue
• Beryl Road
• Bessborough Road
• Bidston Green Court
• Bidston Green Drive
• Bidston Road
• Bidston Station Approach
• Bidston Village Road
• Birch Close
• Birch Road
• Birchview Way
• Blaydon Walk
• Bollington Close
• Boswell Road
• Boundary Road
• Bowgreen Close

Check an address in CH43

Check an address in CH43

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

curl "https://spaw.co/api/v1/address/streets?country=GB&postal_code=CH43" \
  -H "Authorization: Bearer $SPAW_KEY"

Common questions about CH43

What does a CH43 postcode tell you?

That the address lies in the CH43 district of the CH (Chester) postcode area, and the place OS Open Names most often lists first for its postcodes is Birkenhead. The district alone does not place a street: the inward half of the full postcode narrows the address to one of the district's 934 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 CH43

• CH412.1 km
• CH422.7 km
• CH493.0 km
• CH253.5 km
• CH443.7 km
• CH464.0 km
• CH614.8 km
• L744.8 km
• CH455.0 km
• L25.3 km
• CH635.4 km
• L15.6 km
• Every district
• How a British address is written
• Check any address

distance between the districts' centroids