TW20 postcode district

Postcodes and sectors

656 of the district's 1,067 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 51.42749, -0.55301, which locates the district, not a building.

Companies registered in TW20

Companies House lists 3,396 companies with a registered office in TW20; 1,633 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 TW20

• Runnymede
• Surrey
• South East
• Egham
• Thorpe
• Bishopsgate
• Thorpe Green
• Egham Wick
• Staines-upon-Thames
• Virginia Water
• Stroude

Roads filed under TW20

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.

• Albany Place
• Albert Road
• Alder Close
• Alderside Walk
• Alexander Road
• Alexandra Road
• Almond Close
• Alpha Way
• Ambleside Way
• Anners Close
• Argent Close
• Armstrong Road
• Arndale Way
• Ashleigh Avenue
• Ashwood Road
• Ayebridges Avenue
• Bagshot Road
• Bakeham Lane
• Band Lane
• Barley Mow Road
• Barnway
• Barons Way
• Barons Wood
• Beauforts
• Beechtree Avenue
• Beta Way
• Bishopsgate Road
• Bishops Way
• Blay's Lane
• Blays Close
• Blue Ball Lane
• Bond Street
• Borrowdale Close
• Boscombe Close
• Boshers Gardens
• Bourne Meadow
• Brackendale Close
• Braywood Avenue
• Bulkeley Close
• Buttermere Way
• Caddy Close
• Canadian Memorial Avenue
• Castle Hill Road
• Cedar Court
• Charta Road
• Cherrywood Avenue
• Chestnut Close
• Chestnut Drive
• Church Approach
• Church Road
• Clandon Avenue
• Clare Gardens
• Clarence Drive
• Clarence Street
• Clockhouse Lane East
• Clockhouse Lane West
• Coldharbour Close
• Coldharbour Lane
• College Avenue
• Conifer Lane

Check an address in TW20

Check an address in TW20

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

curl "https://spaw.co/api/v1/address/streets?country=GB&postal_code=TW20" \
  -H "Authorization: Bearer $SPAW_KEY"

Common questions about TW20

What does a TW20 postcode tell you?

That the address lies in the TW20 district of the TW (Twickenham) postcode area, and the place OS Open Names most often lists first for its postcodes is Egham. The district alone does not place a street: the inward half of the full postcode narrows the address to one of the district's 656 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 TW20

• GU253.2 km
• TW183.4 km
• TW194.8 km
• KT165.6 km
• TW156.5 km
• SL47.4 km
• SL37.9 km
• TW178.0 km
• SL58.1 km
• KT158.1 km
• TW68.7 km
• TW169.5 km
• Every district
• How a British address is written
• Check any address

distance between the districts' centroids