BN3 postcode district

Postcodes and sectors

1,447 of the district's 2,563 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 50.83525, -0.17764, which locates the district, not a building.

Companies registered in BN3

Companies House lists 10,575 companies with a registered office in BN3; 4,260 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 BN3

• The City of Brighton and Hove
• South East
• Brighton and Hove
• Brighton

Roads filed under BN3

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.

• Acacia Avenue
• Addison Road
• Adelaide Crescent
• Adelaide Mews
• Albany Mews
• Albany Villas
• Albert Mews
• Aldrington Avenue
• Aldrington Close
• Aldwick Mews
• Alice Street
• Alpine Road
• Amberley Drive
• Amesbury Crescent
• Amherst Crescent
• Applesham Avenue
• Arthur Street
• Ash Close
• Ashlings Way
• Avondale Road
• Aymer Road
• Barnet Way
• Barrowfield Close
• Barrowfield Drive
• Basin Road North
• Beeding Avenue
• Belfast Street
• Bellingham Crescent
• Benett Avenue
• Benett Drive
• Berriedale Avenue
• Bigwood Avenue
• Bishops Road
• Blatchington Road
• Bolsover Road
• Boundary Passage
• Braemore Road
• Bramber Avenue
• Brittany Road
• Broad Rig Avenue
• Brooker Place
• Brooker Street
• Brunswick Mews
• Brunswick Place
• Brunswick Road
• Brunswick Square
• Brunswick Street East
• Brunswick Street West
• Brunswick Terrace
• Buckley Close
• Burton Villas
• Burton Walk
• Burwash Road
• Byron Street
• Caburn Road
• Caister's Close
• Cambridge Grove
• Cambridge Mews
• Cambridge Road
• Carlisle Road

Check an address in BN3

Check an address in BN3

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

curl "https://spaw.co/api/v1/address/streets?country=GB&postal_code=BN3" \
  -H "Authorization: Bearer $SPAW_KEY"

Common questions about BN3

What does a BN3 postcode tell you?

That the address lies in the BN3 district of the BN (Brighton) postcode area, and the place OS Open Names most often lists first for its postcodes is Brighton and Hove. The district alone does not place a street: the inward half of the full postcode narrows the address to one of the district's 1,447 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 BN3

• BN12.8 km
• BN412.9 km
• BN424.0 km
• BN25.5 km
• BN436.3 km
• BN456.9 km
• BN1510.4 km
• BN610.8 km
• BN4411.9 km
• BN512.1 km
• BN713.2 km
• BN1013.3 km
• Every district
• How a British address is written
• Check any address

distance between the districts' centroids