SE12 postcode district

Postcodes and sectors

514 of the district's 846 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 51.44453, 0.01985, which locates the district, not a building.

Companies registered in SE12

Companies House lists 1,848 companies with a registered office in SE12; 186 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 SE12

• London
• Greater London
• Lewisham
• Greenwich
• Eltham
• Catford
• Bromley

Roads filed under SE12

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.

• Abergeldie Road
• Addison Drive
• Aislibie Road
• Alanthus Close
• Alice Thompson Close
• Alnwick Road
• Alwold Crescent
• Amblecote Close
• Amblecote Meadow
• Amblecote Road
• Anne Compton Mews
• Ashdale Road
• Ashwater Road
• Balder Rise
• Baring Close
• Baring Road
• Bater Close
• Birch Grove
• Blenheim Close
• Bramdean Crescent
• Bramdean Gardens
• Brightfield Road
• Buckden Close
• Burnt Ash Hill
• Burnt Ash Road
• Cambridge Drive
• Carston Close
• Chinbrook Crescent
• Chinbrook Road
• Claybridge Road
• Cobland Road
• Coopers Lane
• Corona Road
• Courtlands Avenue
• Crathie Road
• Dallinger Road
• Danescombe
• Dilhorne Close
• Dorville Road
• Dyneley Road
• Edward Tyler Road
• Effingham Road
• Eltham Road
• Elwyn Gardens
• Exford Gardens
• Exford Road
• Fairby Road
• Falmouth Close
• Farmcote Road
• Gables Close
• Galahad Road
• Garden Close
• Gavestone Crescent
• Gavestone Road
• Glenmere Row
• Guibal Road
• Hamlea Close
• Handen Road
• Harland Road
• Heather Road

Check an address in SE12

Check an address in SE12

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

curl "https://spaw.co/api/v1/address/streets?country=GB&postal_code=SE12" \
  -H "Authorization: Bearer $SPAW_KEY"

Common questions about SE12

What does an SE12 postcode tell you?

That the address lies in the SE12 district of the SE (South East London) 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 514 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 SE12

• SE92.4 km
• SE62.6 km
• SE132.6 km
• SE32.7 km
• BR13.6 km
• SE44.2 km
• SE74.5 km
• BR74.6 km
• SE104.7 km
• SE234.8 km
• SE85.4 km
• DA155.4 km
• Every district
• How a British address is written
• Check any address

distance between the districts' centroids