UB11 postcode district

Postcodes and sectors

19 of the district's 140 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 51.51149, -0.44725, which locates the district, not a building.

Companies registered in UB11

Companies House lists 525 companies with a registered office in UB11; 129 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 UB11

• London
• Hillingdon
• Greater London

Roads filed under UB11

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.

• Bennetsfield Road
• Clayfield Way
• Furzeground Way
• Horton Road
• Iron Bridge Road
• Longwalk Road
• Roundwood Avenue
• Stockley Road
• The Square

Check an address in UB11

Check an address in UB11

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

curl "https://spaw.co/api/v1/address/streets?country=GB&postal_code=UB11" \
  -H "Authorization: Bearer $SPAW_KEY"

Common questions about UB11

What does a UB11 postcode tell you?

That the address lies in the UB11 district of the UB (Southall) postcode area, and the place OS Open Names most often lists first for its postcodes is London. The district alone does not place a street: the inward half of the full postcode narrows the address to one of the district's 19 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 UB11

• UB71.7 km
• UB31.7 km
• UB43.1 km
• UB83.2 km
• UB104.2 km
• TW64.5 km
• UB24.9 km
• SL05.1 km
• UB15.1 km
• TW55.3 km
• UB56.0 km
• TW46.6 km
• Every district
• How a British address is written
• Check any address

distance between the districts' centroids