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Cardiff Council

20mph speed limits

​​​​​​​​​In 2019 the Welsh Government announced a new policy to set the national default speed limit to 20mph in residential areas. They launched a project to implement ‘Phase 1’ areas, which includes Central North Cardiff, ahead of the planned national rollout in 2023. 

We have been committed to expanding 20mph limits to all residential areas in the city, with a significant part of the city already having 20mph limits in place. 

Cardiff Council will not be implementing an​y new 20mph speed limits until the new legislation comes into force in 2023.

The Central North Cardiff Project

Cardiff Council is part of the Welsh Government ‘Phase 1’ scheme to help develop the technical processes, enforcement and communications strategies as part of the national change to a 20mph default speed limit. 

A new 20mph speed limit has been introduced in the following wards. The area will be signed for 20mph but will not have many roundels painted in the street. 

  • Llandaff North
  • Whitchurch and Tongwynlais
  • Rhiwbina
  • Heath

Council contractors are currently installing the lines and signs for a new 20mph phase 1 scheme in Llandaff North, Whitchurch & Tongwynlais, Rhiwbina and Heath.

When the scheme is fully implemented, all residential streets in these wards will be limited to 20mph, apart from Manor Way and Western Avenue which will remain at 30mph.

Redundant 30mph signs are currently being taken down in these wards, with the aim to complete the implementation of the scheme by May 14th. Please be patient while this takes place.

You can find more information about the 20mph speed limits on the Welsh Government website.​​​​​​​​​​​External link opens in a new window