BB1 postcode district

Postcodes and sectors

1,310 of the district's 1,936 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 53.75692, -2.46288, which locates the district, not a building.

Companies registered in BB1

Companies House lists 6,630 companies with a registered office in BB1; 574 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 BB1

• North West
• Blackburn
• Blackburn with Darwen
• Lancashire
• Hyndburn
• Rishton
• Ribble Valley
• Belthorn
• Copster Green
• Clayton-le-Dale
• Langho
• Rossendale
• Norden
• Tottleworth
• Mellor

Roads filed under BB1

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.

• Abbott Clough Avenue
• Abbott Clough Close
• Aberdare Close
• Aberdeen Drive
• Acacia Walk
• Accrington Road
• Acorn Street
• Addington Street
• Agate Street
• Ailsa Road
• Ainsworth Street
• Albany Drive
• Albert Street
• Alderman Arthur Townsend Way
• Alder Street
• Allan Critchlow Way
• Altom Street
• Amber Avenue
• Ambleside Close
• Amethyst Street
• Anderson Road
• Appleby Street
• Arran Avenue
• Arundel Street
• Ash Close
• Ash Street
• Ashworth Street
• Attlee Close
• Audley Lane
• Audley Range
• Audley Street
• Aviemore Close
• Avondale Avenue
• Ayr Road
• Baker Street
• Balaclava Street
• Bala Close
• Ballantrae Road
• Balmoral Avenue
• Balmoral Crescent
• Bancroft Avenue
• Bancroft Street
• Bangor Street
• Bank Hey Close
• Bank Hey Lane North
• Bank Hey Lane South
• Bank Lane
• Barbara Castle Way
• Bargee Close
• Barker Lane
• Barmouth Crescent
• Barn Meadow Crescent
• Bastwell Road
• Bay Street
• Baywood Street
• Beale Close
• Beardsworth Street
• Beaver Close
• Beech Close
• Beech Mount

Check an address in BB1

Check an address in BB1

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

curl "https://spaw.co/api/v1/address/streets?country=GB&postal_code=BB1" \
  -H "Authorization: Bearer $SPAW_KEY"

Common questions about BB1

What does a BB1 postcode tell you?

That the address lies in the BB1 district of the BB (Blackburn) postcode area, and the place OS Open Names most often lists first for its postcodes is Blackburn. The district alone does not place a street: the inward half of the full postcode narrows the address to one of the district's 1,310 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 BB1

• BB23.1 km
• BB65.0 km
• BB55.9 km
• BB36.5 km
• BB1212.3 km
• BB412.7 km
• PR513.1 km
• BB713.5 km
• PR613.9 km
• BB1114.0 km
• BL714.2 km
• PR1115.2 km
• Every district
• How a British address is written
• Check any address

distance between the districts' centroids