Bitham Mill Comprising the South East Block, The North Block and North West Block

Bitham Mill comprises three blocks - the south-east, north, and north-west - forming a group of former cloth factory buildings situated adjacent to a large pond. Some parts of the mill may date back to the late 18th century.

The south-east block includes the water factory of 1803. It is built of purple brick with stone string courses, featuring eight bays of segmental-headed windows with glazing bars on the first floor. The block originally had five storeys, but now has only three. A tall, blocked window to the left, with quoins to a round-headed arch, indicates the former location of an engine house. An extension was added to the east in 1829, incorporating a larger engine house where a tall round-headed window with red brick voussoirs remains. A boiler house with a tall square stack is attached. Further east is a two-storey block with six windows, ending with a three-storey block of approximately the 1860s, featuring three windows with segmental heads.

The north block, likely designed by W.J. Stent in 1868, is a two-storey (formerly four-storey) range of 14 bays, constructed of purple brick with stone dressings, including window heads, keystones, and moulded impost bands over stilted segmental-headed windows.

The north-west block, dating from the early 19th century, is the best-preserved portion of the mill and notable for its domestic appearance. It stands three storeys high with a basement, and is built of purple brick with a slate roof. Originally featuring six windows on the second floor and seven on the first, it now retains modern casements. Brick flat arches frame the windows. The second bay from the left features a pedimented Tuscan doorpiece with attached columns, now lacking bases. The roof has a double span. Returns and a mid-19th century rear extension consist of three ranges of segmental-headed windows with stone surrounds over four floors to the north. These are joined by a lower courtyard and a set-back range linked to the south-east block.

The interior features floors supported by brick vaults and cast iron pillars, which are fluted and have ornamental pedestals, along with cast iron beams.