SW20 postcode district

Postcodes and sectors

570 of the district's 989 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 51.41079, -0.22788, which locates the district, not a building.

Companies registered in SW20

Companies House lists 3,058 companies with a registered office in SW20; 931 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 SW20

• London
• Greater London
• Merton
• Wimbledon
• Morden
• Kingston upon Thames
• New Malden

Roads filed under SW20

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.

• Abbott Avenue
• Aboyne Drive
• Albert Grove
• Almer Road
• Amity Grove
• Approach Road
• Arterberry Road
• Aston Road
• Atkinson Close
• Avalon Close
• Avenue Road
• Aylward Road
• Bakers End
• Barham Road
• Barnscroft
• Beaford Grove
• Berrylands
• Beverley Avenue
• Beverley Way
• Blakesley Walk
• Blenheim Close
• Blenheim Road
• Bluebird Close
• Bodnant Gardens
• Botsford Road
• Bowling Green Mews
• Bronson Road
• Brook Close
• Buckleigh Avenue
• Burdett Avenue
• Burstow Road
• Bushey Road
• Camberley Avenue
• Cambridge Close
• Cambridge Road
• Cannon Close
• Cannon Hill Lane
• Carillon Road
• Carlton Park Avenue
• Chambers Park Hill
• Chase Court
• Chase Side Avenue
• Chatsworth Avenue
• Chestnut Road
• Church Walk
• Cleveland Avenue
• Clifton Park Avenue
• Coniston Close
• Conway Road
• Coombe Gardens
• Coombe Lane
• Coombe Lane Flyover
• Coppice Close
• Copse Hill
• Cottenham Drive
• Cottenham Park Road
• Cottenham Place
• Cranford Close
• Crawford Mews
• Crescent Road

Check an address in SW20

Check an address in SW20

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

curl "https://spaw.co/api/v1/address/streets?country=GB&postal_code=SW20" \
  -H "Authorization: Bearer $SPAW_KEY"

Common questions about SW20

What does an SW20 postcode tell you?

That the address lies in the SW20 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 570 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 SW20

• SW192.3 km
• KT32.4 km
• SM42.8 km
• KT43.8 km
• KT24.4 km
• SM34.5 km
• KT54.7 km
• CR44.8 km
• SW174.9 km
• KT14.9 km
• SW155.1 km
• SW185.2 km
• Every district
• How a British address is written
• Check any address

distance between the districts' centroids