Diolch am 20/Thanks for 20



Welcome to our web pages about the new national 20mph default speed limit for cities, towns and villages in Wales, which became effective on 17th September 2023.

Wales has joined the many countries where 20mph or 30km/h limits are becoming the norm for urban and village streets. Unlike the street-by-street approach in the rest of the UK, Wales is taking the smart route of setting 20mph as the national urban/village default with exceptions decided by local authorities. It has all the benefits of a national and consistent standard combined with local flexibility.

The Welsh Government have dedicated 20mph pages on their website.



If you have suggestions as to how the information can be improved then please email [email protected].


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  • Iain Godfrey
    followed this page 2023-09-28 13:27:11 +0100
  • Rod King
    published this page 2023-02-26 14:16:04 +0000
  • Rod King
    published this page 2023-02-17 15:20:46 +0000
  • Rod King
    published this page 2023-02-03 14:46:24 +0000