Work will begin in spring 2026 on a major rebuild delivering a new southern entrance, a larger concourse and an extended platform 0 to ease chronic congestion for the 35,000 passengers using the station each day.

The £140m package includes nearly £78m from the UK Government, £40m from Cardiff Capital Region and £21m from the Welsh Government.

The upgrade forms part of a wider £445m rail investment programme bringing new stations and more services across Wales.

BAM and Transport for Wales will roll out new gate-lines, expanded circulation space, upgraded waiting areas, improved retail units and fresh cycle storage, helping to fix long-standing overcrowding and boost accessibility.

Cardiff Central station – northern entrance and new platform 0 building

Transport secretary Heidi Alexander said the rebuilt station would offer a modern gateway to the capital, while Welsh transport cabinet secretary Ken Skates said the approvals marked a major step in tackling historic rail underfunding.

Cardiff Central station northern booking hall

Main works will run to 2029, modernising the station while respecting its heritage and providing capacity for long-term passenger growth.