The Mill House and watermill

The Mill House and attached watermill is a building from the late 18th century located on Cotton End Road in Newmarket, which includes Exning. The house features three windows across two storeys and attics, constructed of red brick with a string course at the first floor. It has a hipped plaintiled roof at the right end, with red brick chimneys and lead flat-roofed casement dormers that have small-pane sash windows. The sash windows are set within flat arches made of gauged brick, and there are early 19th century small-pane sashes. The entrance door, dating from the 18th century, has six fielded panels and an oblong fanlight with radial glazing bars, topped by a flat lead-roofed semi-circular canopy supported by slender wooden Doric columns. Additionally, there is a one-storey flat-roofed semi-circular bay window on the side elevation.

The watermill is two storeys high, with a timber-framed and rendered upper storey featuring herringbone pargetting, while the lower storey is made of clunch with gault brick dressings. It has a pantiled roof and wooden two- and three-light windows from the 18th and 19th centuries, fitted with small-pane iron casements, along with boarded doors. Most of the machinery has been removed, but a wooden upright shaft, spurwheel, and crownwheel remain; both gearwheels are constructed of wood with compass-arm design. The waterwheel was overshot, which is unusual for Suffolk. The mill is currently in poor condition, with some areas experiencing partial collapse.