The Coppermills (Waterboard Stores)

The Coppermills, also known as the Waterboard Stores, are former coppermills built in 1806. The building is constructed of yellow brick with Portland stone dressings and features a renewed pantile roof on the main block and a slate roof on the subsidiary wing. The main block is square in plan and has an east facade with four bays, two storeys high. The ground floor is blind, with giant segmental arches supported by pilasters featuring Portland stone capitals, while the upper storey has segmental windows. To the left, there is an entrance with a segmental head and a blind oculus above. A parapet with a brick band runs below the roofline.

To the right, the fourth bay is overlapped by a subsidiary wing that matches the main block's style, also two storeys high and featuring five bays on its south facade. The centre bay is taller and has a giant segmental relieving arch with an inset vesica in the upper storey. The windows are square-headed and set within giant relieving arches, with glazing bars and casements on the ground floor. An Italianate tower, added later, is attached to the north of the main block. It is rectangular in plan and features arcading, a brick eaves cornice, and a hipped roof. The coppermills were originally served by a stream running beneath the building and were once used for the manufacture of tokens.