Town Hall

The Town Hall is a building that showcases English Renaissance architecture with Art Nouveau influences, along with later alterations. It is two stories high with an attic and features a five-bay front made of ashlar Cefn Stone. The ground floor has an arcade that once served as the Market Hall, while the first floor contains the Council Chamber and offices. At the center of the hipped tiled roof is a tall clock tower covered in lead, topped with a domed bellcote and weathervane. The roof also includes three dormer heads, with the center designed as a cross gable featuring a four-light mullioned window, and oversailing eaves adorned with scrolled finials.

The building is characterized by massive end pilasters, with raised ends topped by volutes and carved wreaths. Slender pilasters on the center bay rise from dragon corbels in the spandrels of the arcade. There is a sinuous cantilevered iron balcony that complements the Shaw-influenced three-light center window, while the outer stone mullioned windows consist of three and four lights. The arcade features moulded round arches with linked hoods and square abaci supported by half-round columns. The railings display fine ironwork lunettes that contain the Llanidloes arms, and the left-hand bay is railed and includes a War Memorial with lion supports. There are two return bays on the right with screens to the arches. The rear extensions are built in a vernacular style using red brick and roughcast, with tiled roofs and various dormers.

Inside, the building retains an openwell stone staircase with ornamental ironwork balusters and an arched head at the landing. Notable first-floor rooms include a toplit Billiard Room with arch braces, the Council Chamber, News Room, and Library, all featuring high dados, moulded cornices, and pilaster treatments, along with tulip glass in the Art Nouveau style.