It was opened with the South Wales Railway in 1850 and closed to passengers on 12 September 1960 in preparation for the building of Llanwern steelworks.
After the closure of the steelworks, and the construction of housing on the site, Llanwern seems likely to be under consideration for some part in a broader Severnside Parkway scheme, to relieve the pressure of commuter traffic and its parking on the village of Rogiet and Severn Tunnel Junction.
Planning permission has been requested in 2019 by Transport for Wales as part of their preliminary plans for a major events stabling line at the site.
[3] The line will be used to situate infrastructure close to demand for major occasions such as Millennium Stadium events in Cardiff, but also serve as a line for testing new Construcciones y Auxiliar de Ferrocarriles trains for Transport for Wales, to be manufactured at the nearby Celtic Springs Business Park factory.
[3] The larger scheme, including the railway station and car park, will be submitted in a later application.