B12 postcode district

Postcodes and sectors

476 of the district's 765 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 52.46104, -1.88442, which locates the district, not a building.

Companies registered in B12

Companies House lists 3,136 companies with a registered office in B12; 774 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 B12

• Birmingham
• West Midlands

Roads filed under B12

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.

• Adelaide Street
• Albert Avenue
• Alcester Street
• Alder Road
• Alfred Street
• Alpha Close
• Angelina Street
• Arter Street
• Ash Avenue
• Athole Street
• Balfour Street
• Balsall Heath Road
• Bath Walk
• Beach Avenue
• Beaconsfield Road
• Beech Avenue
• Belgrave Road
• Bewdley Avenue
• Birchall Street
• Birchwood Crescent
• Birchwood Road
• Bird Close
• Bordesley Middleway
• Bradford Street
• Bridge Croft
• Brighton Road
• Broom Street
• Brunel Close
• Brunswick Road
• Camp Hill
• Camrose Croft
• Canberra Way
• Canford Close
• Cannon Hill Grove
• Cannon Hill Place
• Cannon Hill Road
• Caroline Road
• Chandos Road
• Chapel House Street
• Charles Henry Street
• Cheapside
• Cheddar Road
• Chesterton Road
• Clifton Road
• Clyde Street
• Cobden Gardens
• Colville Road
• Colville Walk
• Conybere Street
• Copperbeech Drive
• Court Road
• Cromer Road
• Darfield Walk
• Darwin Street
• Dennis Road
• Dymoke Street
• Eastwood Road
• Eden Avenue
• Edgbaston Road
• Edgbaston Road East

Check an address in B12

Check an address in B12

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

curl "https://spaw.co/api/v1/address/streets?country=GB&postal_code=B12" \
  -H "Authorization: Bearer $SPAW_KEY"

Common questions about B12

What does a B12 postcode tell you?

That the address lies in the B12 district of the B (Birmingham) postcode area, and the place OS Open Names most often lists first for its postcodes is Birmingham. The district alone does not place a street: the inward half of the full postcode narrows the address to one of the district's 476 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 B12

• B51.3 km
• B111.9 km
• B102.4 km
• B132.6 km
• B12.7 km
• B152.7 km
• B42.8 km
• B32.8 km
• B93.0 km
• B23.1 km
• B73.8 km
• B163.8 km
• Every district
• How a British address is written
• Check any address

distance between the districts' centroids