Surviving Block of former St David's Hospital

The surviving block of the former St David's Hospital is the central entrance block of the south-east wing of the Canton Union Workhouse. It is a two and three-storey building with five bays, featuring Welsh slate roofs and walls made of stone laid in both regular and irregular courses, with ashlar bands and dressings. The outermost bays are two storeys high with hipped slate roofs. Each of these bays has a three-light transom window on the first floor, with pointed heads to the lights, and a flat-headed window on the ground floor.

The intermediate bays have gabled attic storeys with flanking stone stacks. Each gable features a three-light transom and mullion attic window with pointed heads to the lights, along with triple windows on both the first and ground floors; the first-floor windows have pointed heads, while the ground-floor windows are square-headed. The centre bay rises to two storeys and includes a crowning tower, which has a window with two pointed-headed lights on the first floor and a pointed-headed doorway on the ground floor. The tower itself is three storeys tall, with the lowest storey containing a two-light pointed-headed window, the middle storey featuring three narrow vertical lights, and the upper storey displaying a clock face. The tower is topped with arcading beneath a steep pyramid roof with gablets. There are also two small windows at the hipped end of either wing. The rear elevation was not seen during the resurvey.