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This project is not going ahead.

First published:
11 January 2019
Last updated:


In 2016 we published drawings, reports and environmental assessments for the proposed project, which includes a new section of motorway south of Newport.

A year long Public Inquiry was then held to allow everyone to have their say, completing in Spring 2018.

You are able to view evidence presented to the inquiry on Persona Associates' website.


The First Minister has decided not to proceed and has declined to make the draft Schemes and Orders which would have been needed for the M4 project to go ahead.

You can view the following:

Next steps

The South East Wales Transport Commission was set up following the announcement not to go ahead with the project.