TfW launches procurement for £33m Caerphilly bus and rail interchange

Transport for Wales (TfW) has begun the procurement process for the main construction contract for a new £33m integrated transport interchange in Caerphilly, marking the next phase of a project designed to improve connections between rail, bus, taxi and active travel while supporting wider town centre regeneration.

image: Grimshaw

The two-stage procurement seeks a contractor to deliver the scheme, with construction expected to begin in March 2027 and continue until March 2030. Companies interested in the contract have until 26 August to submit requests to participate.

Grimshaw Architects is the lead designer, responsible for the architectural design and coordination of the multidisciplinary team delivering the integrated rail, bus and active travel hub.

The project will replace the existing station and bus interchange with a new, fully accessible transport hub on the current site. Plans include a redesigned station building, improved passenger waiting facilities, additional bus infrastructure, enhanced retail space and better links for pedestrians and cyclists. The scheme will also increase the number of bus stands from 11 to 12 and bus layover bays from three to four, alongside new public conveniences and an active travel hub.

The interchange forms part of the wider Caerphilly 2035 regeneration programme, which aims to revitalise the town centre through investment in transport, public spaces, housing and commercial development. The project is intended to create a more attractive gateway to the town while encouraging greater use of public transport and supporting local economic growth.

Transport for Wales is delivering the scheme as part of the South Wales Metro programme, which is modernising rail services and interchanges across the region. The Metro will increase rail frequencies on the Rhymney Line, with Caerphilly expected to benefit from up to six trains an hour to Cardiff.

The Caerphilly interchange is one of several transport hub projects being delivered across South Wales. Similar schemes at locations including Merthyr Tydfil and Pontypridd have sought to create more seamless connections between rail, bus and active travel as part of the Welsh Government's wider sustainable transport strategy.

Once completed, the new interchange is expected to provide a modern transport gateway for commuters, visitors and residents while supporting the long-term regeneration ambitions set out in the Caerphilly 2035 masterplan.