The single-storey buildings on the Gloucester/Birmingham side of the line are stone and timber-built structures, in an Italianate style. They were completed in 1850 for Isambard Kingdom Brunel's South Wales Railway, and according to architectural historianJohn Newman were designed by N. Lancaster Owen. A canopy provides shelter. On the more popular Newport/Cardiff side, there is just a small modern shelter. Access to this platform is via a cast-iron footbridge, making it difficult for passengers with pushchairs and the old and the infirm to cross. The footbridge is a now-rare survival of a typical GWR iron pattern, still with its wooden cladding and canopy, and is Grade II listed. It was cast in Edward Finch's ironworks, adjoining the station. Other Grade II listings at the station include the two bridges: the surviving piers and abutment of the Chepstow Railway Bridge, and the bridge providing access to the steam mill and ironworks site.
Services
The local rail service is sporadic, running an hourly service in each direction. A local campaign has been established, with the support of the local MP, Welsh Assembly members, County Council and town council, to improve rail services to the town. In May 2011, CrossCountry commenced a year-long trial of stopping its Cardiff-Birmingham- services at the station on weekdays and Saturdays. In December 2011, it was reported that the trial would be extended until at least December 2012. As of May 2016, the service pattern consists of the hourly - Cardiff Central - service plus calls every second hour by the CrossCountry Nottingham - Cardiff Central trains. On Sundays, there is a two-hourly service in each direction.
Facilities
The station is manned, and a cafe offering light refreshments is available in the main building. The ticket office is run by a third-party operator, Chepstow Trains, on behalf of Network Rail and Transport for Wales, and is open part-time, six days per week. Outside these times, tickets must be bought on the train. Train running information is offered via digital CIS displays and timetable poster boards. The nearest bus stop is a 5-minute walk away in the Tescocar park; however the service is infrequent and consists of just a local service. Chepstow bus station is about further; from here buses to a wider area may be found. On race days, special buses are normally laid on to convey racegoers to and from Chepstow racecourse; this is a walk of approximately half an hour's duration. Limited station parking is available, with eleven spaces. There is a car park near the station with more spaces.