UB1 postcode district

Postcodes and sectors

615 of the district's 1,214 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 51.51538, -0.37348, which locates the district, not a building.

Companies registered in UB1

Companies House lists 4,516 companies with a registered office in UB1; 695 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 UB1

• Greater London
• London
• Ealing
• Southall
• Greenford
• Hayes
• Hillingdon

Roads filed under UB1

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.

• Abbotts Road
• Accolade Avenue
• Adrienne Avenue
• Agape Way
• Alexandra Avenue
• Alfred Gardens
• Allenby Road
• Allendale Avenue
• Alma Road
• Argyll Avenue
• Ascot Gardens
• Ash Grove
• Atherton Place
• Avenue Road
• Baird Avenue
• Balmoral Drive
• Bankside
• Bayliss Close
• Beachcroft Avenue
• Beaconsfield Road
• Beatrice Road
• Beresford Road
• Blackmore Avenue
• Boyd Avenue
• Brentvale Avenue
• Brindley Way
• Britten Drive
• Burns Avenue
• Burslem Close
• Bycroft Road
• Cambridge Road
• Carlyle Avenue
• Carlyle Gardens
• Cedar Grove
• Cedrus Avenue
• Chepstow Gardens
• Cherry Avenue
• Coraline Close
• Cornwall Avenue
• Cranleigh Gardens
• Craven Avenue
• Cressage Close
• Dane Road
• Darwin Drive
• Denbigh Close
• Denbigh Road
• Derwent Road
• Devonshire Road
• Dorell Close
• Dormer's Avenue
• Dormer's Wells Lane
• Dormers Rise
• Durdans Road
• East Avenue
• Edison Drive
• Enmore Road
• Evelyn Grove
• Fairfield Road
• Fairlawn Gardens
• Faraday Road

Check an address in UB1

Check an address in UB1

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

curl "https://spaw.co/api/v1/address/streets?country=GB&postal_code=UB1" \
  -H "Authorization: Bearer $SPAW_KEY"

Common questions about UB1

What does a UB1 postcode tell you?

That the address lies in the UB1 district of the UB (Southall) postcode area, and the place OS Open Names most often lists first for its postcodes is Southall. The district alone does not place a street: the inward half of the full postcode narrows the address to one of the district's 615 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 UB1

• UB21.8 km
• W72.6 km
• UB42.7 km
• UB53.1 km
• UB63.5 km
• W133.6 km
• UB33.7 km
• TW53.8 km
• W54.9 km
• UB115.1 km
• TW35.3 km
• TW75.4 km
• Every district
• How a British address is written
• Check any address

distance between the districts' centroids