SW18 postcode district

Postcodes and sectors

1,242 of the district's 2,038 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 51.45151, -0.19143, which locates the district, not a building.

Companies registered in SW18

Companies House lists 6,266 companies with a registered office in SW18; 1,173 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 SW18

• London
• Greater London
• Wandsworth
• Wimbledon
• Merton

Roads filed under SW18

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.

• Acris Street
• Acuba Road
• Adelaide Road
• Aldrich Terrace
• Algarve Road
• Allfarthing Lane
• All Saints Passage
• Alma Road
• Alma Terrace
• Alverstone Avenue
• Amerland Road
• Arcadian Place
• Armoury Way
• Arnal Crescent
• Arragon Road
• Artemis Place
• Aslett Street
• Aspley Road
• Astonville Street
• Atheldene Road
• Avening Road
• Avening Terrace
• Ballantine Street
• Balvernie Grove
• Barchard Street
• Barley Walk
• Barmouth Road
• Bartholomew Close
• Baskerville Road
• Bassingham Road
• Bell Drive
• Bellwether Lane
• Bendon Valley
• Berisford Mews
• Birdhurst Road
• Bodmin Street
• Borrodaile Road
• Bowman Mews
• Braemar Avenue
• Bramford Road
• Brathway Road
• Bremans Row
• Bridgend Road
• Bridge Park
• Bridgford Street
• Brightman Road
• Broadgates Road
• Brocklebank Road
• Brookwood Road
• Broomhill Road
• Bubbling Well Square
• Bucharest Road
• Buckhold Road
• Burcote Road
• Burntwood Close
• Burntwood Grange Road
• Burr Road
• Bush Cottages
• Cader Road
• Camborne Road

Check an address in SW18

Check an address in SW18

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

curl "https://spaw.co/api/v1/address/streets?country=GB&postal_code=SW18" \
  -H "Authorization: Bearer $SPAW_KEY"

Common questions about SW18

What does an SW18 postcode tell you?

That the address lies in the SW18 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 1,242 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 SW18

• SW152.6 km
• SW112.8 km
• SW62.9 km
• SW172.9 km
• SW123.0 km
• SW193.1 km
• SW103.6 km
• SW44.0 km
• SW54.5 km
• SW134.5 km
• SW34.6 km
• SW25.0 km
• Every district
• How a British address is written
• Check any address

distance between the districts' centroids