BN23 postcode district

Postcodes and sectors

688 of the district's 857 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 50.79767, 0.31259, which locates the district, not a building.

Companies registered in BN23

Companies House lists 685 companies with a registered office in BN23; none of them at an address 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 BN23

• East Sussex
• South East
• Eastbourne
• Crumbles
• Wealden
• Westham

Roads filed under BN23

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.

• Admiralty Way
• Alder Close
• Alfred Road
• Alverstone Close
• Anchorage Way
• Anson Close
• Antigua Close
• Appledore Close
• Ashgate Road
• Athelstan Close
• Atlantic Drive
• Auckland Quay
• Austen Walk
• Aylesbury Avenue
• Ayscue Close
• Barbuda Quay
• Barming Close
• Barrie Close
• Barrier Reef Way
• Bathford Close
• Beatty Road
• Belvedere
• Bembridge Road
• Benbow Avenue
• Berkeley Walk
• Bermuda Place
• Biddenden Close
• Birch Close
• Birch Road
• Biscay Avenue
• Blakes Way
• Borrowdale Close
• Boscawen Close
• Boship Close
• Boston Close
• Boswell Walk
• Brading Close
• Bramble Close
• Brendon Close
• Briar Place
• Brisbane Quay
• Britten Close
• Broad Oak Close
• Bromley Close
• Browning Walk
• Burwash Close
• Buttermere Way
• Byron Walk
• Cabot Close
• Caburn Close
• Cairngorm Close
• Callao Quay
• Campbell Mews
• Canary Quay
• Canute Close
• Carisbrooke Close
• Carnforth Crescent
• Caroline Way
• Carroll Walk
• Castle Bolton

Check an address in BN23

Check an address in BN23

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

curl "https://spaw.co/api/v1/address/streets?country=GB&postal_code=BN23" \
  -H "Authorization: Bearer $SPAW_KEY"

Common questions about BN23

What does a BN23 postcode tell you?

That the address lies in the BN23 district of the BN (Brighton) postcode area, and the place OS Open Names most often lists first for its postcodes is Eastbourne. The district alone does not place a street: the inward half of the full postcode narrows the address to one of the district's 688 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 BN23

• BN222.2 km
• BN242.3 km
• BN213.8 km
• BN204.9 km
• BN266.8 km
• BN278.9 km
• TN3911.2 km
• TN4013.1 km
• BN2514.5 km
• TN3317.0 km
• TN3817.8 km
• TN2118.2 km
• Every district
• How a British address is written
• Check any address

distance between the districts' centroids