Great Holland Mill House

Great Holland Mill House is a mill house from the early to mid-19th century that is now used as an office for the mill. It is constructed of red brick and features a red plain tiled gambrel roof, with red brick chimney stacks on both the right and left sides. The building has one storey and attics, with two square-headed dormers. The windows are small paned vertically sliding sashes with glazed margins, and the ground floor on the left has sidelights. There is a central 20th-century door with a moulded surround and a flat canopy above it.

Attached to the rear left are three later ranges; the far left is a former granary with a vertically boarded door on the gable end, the central single-storey range has a vertically boarded door and a small paned casement, and the right range features three small paned windows with segmental arches. These later ranges have grey slate roofs. In front of the main range is a single-storey porch with a hipped grey slate roof and a casement window with glazing bars, along with a 20th-century door on the left return.