The first watermill was at Hoxne. The present building was erected in 1846, and consists of a brick ground floor, with two storeys above that which are timber framed and weatherboarded, and a slate roof. It replaced a structure built in 1749, but that was not the first mill at Hoxne, since a mill is shown on Kirby's map of Suffolk, dated 1736, and two mills are mentioned in the Domesday Book of 1086, although this probably meant that there were two sets of stones. The last two buildings were variously used for milling corn, the production of textiles, and for processing flax at different points in their history. The mill ceased to be used after it was sold in 1968, but retains its wheel and some of the machinery. Both the mill and the adjacent house are grade II listed structures.