20mph streets

New 20mph default speed legislation

Welsh government will introduce a default 20mph speed limit on restricted roads in Wales from September 2023. 

These are roads with streetlights no more than 200 yards apart, usually located in residential and built-up areas.

Once the new law comes into force, all restricted roads will default from 30mph to 20mph. This means that the maximum speed you can legally travel at on these roads will be 20mph.

There are some roads that will remain at 30mph. These roads will be signed in the same way that roads with higher speed limits are now.

Any speed signs currently in place indicating a 20mph limit will be removed. There will be no signs in place to remind you of the speed limit where it is the default. This is the same as it currently is in 30mph limits.

Welsh government are aiming to bring in the new 20mph default speed in September 2023. Work will be undertaken across Newport between now and this date to prepare for the change.

This includes removing the 20mph and 30mph roundel markings from the road in the run up to the implementation date.

These markings are advisory and not required for the enforcement of speed limits, so can be removed prior to the rollout.


(example of a 20mph roundel marking)

Existing 20mph limits in residential areas across the city will remain in place until the new default limit comes into force. As this time all 20mph signs will be removed.

We will not bring in an​y new 20mph speed limits in Newport until the legislation comes into force.

Welsh government have advised that reducing the speed limit from 30mph to 20mph on restricted roads could see many benefits. These include:

  • Helping to improve our health and wellbeing
  • Making our streets safer
  • Safeguarding the environment for future generations
  • Reducing road collisions; and
  • More opportunities to walk and cycle in our communities

For further information please visit the useful links below:



The Restricted Roads (20 mph Speed Limit) (Wales) Order 2022 (DRAFT)

Welsh Government 20mph leaflet - July 2022