SW4 postcode district

Postcodes and sectors

932 of the district's 1,580 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 51.46096, -0.13646, which locates the district, not a building.

Companies registered in SW4

Companies House lists 2,871 companies with a registered office in SW4; 64 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 SW4

• Greater London
• London
• Lambeth
• Clapham
• Wandsworth
• Union Mews

Roads filed under SW4

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.

• Abbeville Mews
• Abbeville Road
• Alfriston Road
• Allardyce Street
• Allingham Road
• Allnutt Way
• Aristotle Road
• Bateman Mews
• Bedford Road
• Belmont Close
• Belmont Road
• Bicycle Mews
• Binfield Road
• Bobbin Close
• Bonneville Gardens
• Bourke Close
• Bowie Close
• Bowland Road
• Bowood Road
• Bradley Road
• Brayburne Avenue
• Briarwood Road
• Brickfield Road
• Britannia Close
• Broadhinton Road
• Bromell's Road
• Bromfelde Road
• Bromfelde Walk
• Broomwood Road
• Buxton Mews
• Cadmus Close
• Caldervale Road
• Canford Road
• Carfax Place
• Carpenter's Place
• Cato Road
• Cautley Avenue
• Cedars Mews
• Cedars Road
• Charles Barry Close
• Charlotte Row
• Chelsham Road
• Chip Street
• Clapham Common North Side
• Clapham Common South Side
• Clapham Common West Side
• Clapham Crescent
• Clapham High Street
• Clapham Manor Street
• Clapham Park Road
• Clarence Avenue
• Clarence Crescent
• Clarence Walk
• Clement Avenue
• Common Mile Close
• Cranmer Court
• Crescent Grove
• Crescent Lane
• Cresset Street
• Cubitt Terrace

Check an address in SW4

Check an address in SW4

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

curl "https://spaw.co/api/v1/address/streets?country=GB&postal_code=SW4" \
  -H "Authorization: Bearer $SPAW_KEY"

Common questions about SW4

What does an SW4 postcode tell you?

That the address lies in the SW4 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 932 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 SW4

• SW21.7 km
• SW81.8 km
• SW91.8 km
• SW121.8 km
• SW112.0 km
• SE242.6 km
• SW1V3.2 km
• SW1P3.2 km
• SE53.4 km
• SE113.6 km
• SW1W3.7 km
• SW33.8 km
• Every district
• How a British address is written
• Check any address

distance between the districts' centroids