 The station building was replaced again in 1969, with a larger building, also constructed out of slate, as the 1930s structure was both in need of much repair and too small to serve the increasing tourist traffic being carried.This newest building has since been extended to the west, the extension looking externally similar to the original wooden station building.When the railway was extended to Nant Gwernol, it became necessary to accommodate two trains simultaneously, so the platform was extended to long, believed to have been the longest platform on narrow gauge railway in Britain at the time.