Castle Mill: Central Building At Right Angle To Road

Castle Mill is a mill building that is now derelict. It dates from the mid to late 18th century and has undergone later alterations. The structure is built of brick in English bond with sandstone details and features a stone slate roof. It has three storeys and five bays, and it is linked at the north-east corner to a road-side range. The building has a stone plinth and quoins.

On the ground floor, there is an inserted four-panel door on the right with a blocked window next to it, and three 20th-century windows to the left. The first floor features a blocked window far right, and four square windows with flush wood frames. The second window from the left is likely original, consisting of three horizontal lights: the lower light is boarded, the centre light has four panes, and the top light is open, although some are also boarded. The wooden lintels include two on the right that have been repaired in cement.

On the second floor, there is one original window bay, while the others are blocked. At the rear, the ground floor has a boarded door in bay two and windows that are boarded over. The first floor has three windows with three horizontal lights and an 8-pane fixed window to the right. The second floor has one blocked window, with the remainder featuring three horizontal lights.

On the right return, there are remains of a projecting brick stack on stone corbels at the first floor. The interior was not inspected during the resurvey, but it has been reported to contain a stone-vaulted cellar and a roof structure supported by three king post trusses made of softwood.

To the left, there is a two-storey linking range of brick with a slate roof, built after 1851 and not considered of special interest. This building may be located on the site of a paper mill complex operated by John Lomas in 1771, which was converted to a cotton mill in 1791. A low range attached to the east end of the south side is shown in the Ordnance Survey map of 1851.