SW12 postcode district

Postcodes and sectors

594 of the district's 1,017 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 51.44632, -0.14906, which locates the district, not a building.

Companies registered in SW12

Companies House lists 2,302 companies with a registered office in SW12; 195 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 SW12

• London
• Greater London
• Wandsworth
• Lambeth
• Streatham

Roads filed under SW12

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.

• Adelina Mews
• Ainslie Walk
• Airedale Road
• Alderbrook Road
• Anfield Close
• Atkins Road
• Badminton Road
• Balham Grove
• Balham High Road
• Balham Hill
• Balham New Road
• Balham Park Road
• Balham Station Road
• Basilica Mews
• Bedford Hill
• Beira Street
• Bellamy Street
• Belthorn Crescent
• Benjamin Mews
• Birchlands Avenue
• Birkwood Close
• Blandfield Road
• Boundaries Road
• Bracken Avenue
• Brierley Road
• Burnbury Road
• Bushey Down
• Byrne Road
• Caistor Mews
• Caistor Road
• Calbourne Road
• Cambray Road
• Cathles Road
• Cavendish Place
• Cavendish Road
• Chestnut Grove
• Churchcroft Close
• Clarence Mews
• Clavering Place
• Copthorne Avenue
• Cornford Grove
• Culverden Road
• Dagnan Road
• Denning Mews
• Devereux Road
• Dinsmore Road
• Dornton Road
• Earlsthorpe Mews
• Emmanuel Road
• Endlesham Road
• Englewood Road
• Ethelbert Street
• Fernbank Mews
• Fernlea Road
• Fernside Road
• Fieldhouse Road
• Florence Way
• Fontenoy Road
• Fryday Grove Mews
• Gaskarth Road

Check an address in SW12

Check an address in SW12

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

curl "https://spaw.co/api/v1/address/streets?country=GB&postal_code=SW12" \
  -H "Authorization: Bearer $SPAW_KEY"

Common questions about SW12

What does an SW12 postcode tell you?

That the address lies in the SW12 district of the SW (South West 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 594 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 SW12

• SW41.8 km
• SW172.0 km
• SW22.1 km
• SW112.7 km
• SW183.0 km
• SW163.1 km
• SE243.5 km
• SW93.5 km
• SW83.6 km
• SE273.7 km
• SE214.3 km
• SW194.5 km
• Every district
• How a British address is written
• Check any address

distance between the districts' centroids