Pavilion at Spa Treatment Centre

The Pavilion at the Spa Treatment Centre is an openwork basilican hall located at the junction of the Spa pump rooms and the Spas of Wales Centre. It features a structure that measures 7 bays by 5 bays, constructed from ironwork and steel, and includes 3 roof trusses. The high roof, which was originally designed in a pagoda style, is now painted corrugated and has a hipped east end, supported by the gable end of the Spas of Wales Centre to the west.

All sides of the pavilion have a clerestory that is supported by 6 piers connected with girders. The wraparound aisle roofs have wide eaves and are supported by the south wall of the pump rooms. The interior includes cast-iron columns that form segmental arched arcades, featuring foliated capitals. The inner arcades showcase open fretwork, while the outer arcade has embossed spandrels with finials. There is also latticework detailing on the horizontal members, with foliage trails and ovals on the spandrels, along with additional foliage detail and ribbon motifs at the bases of the columns. Some ironwork detailing has been removed. The girders were produced by W A Baker and Co from Newport, and the ironwork was created by Bayliss, Jones and Bayliss from London. At the time of inspection on July 3, 1985, the high roof was in the process of being replaced.