Foster's Mill Swaffham Prior · Cambridgeshire · England

Foster's Mill is the tower corn mill on Mill Hill at Swaffham Prior. It was built in 1857 by Fysons of Soham, local millwrights whose work is closely associated with the Cambridgeshire mill landscape. The mill replaced or succeeded an earlier post mill on the same site, giving Mill Hill a long association with wind-powered milling.

The mill is built as a four-storey tower, with a brick outer skin and internal clunch lining. Its working equipment includes an ogee cap, four double-sided patent sails, and two pairs of French Burr stones. The building was designed for corn milling, and its continuing use as a stoneground flour mill preserves the technical purpose for which it was built.

The Foster family worked the mill throughout its commercial working life. Milling ceased in 1946, after which the mill was mothballed rather than immediately demolished or converted. It was rescued in 1970, beginning a long restoration process that returned it to grinding condition in 1991 or 1992. Jonathan Cook bought the mill in 1998, and the mill later became associated with the Prior's Flour range of organic stoneground flours. Foster's Mill now survives as a working wind-powered corn mill, one of the strongest survivals of Swaffham Prior's paired windmill landmark.