Grade II listed building. Main construction periods 1700 to 1899 Summary from record TR 06 SW 1012: Ham Farmhouse is a listed building, originally built in the early eighteenth century. It was extended in the early nineteeth century. It is a two-storey building of painted brick with plain tiled roofs and twentieth century casement windows. Painted brick walls, about four feet high, run about 30m from the main, northern elevation of the house to meet the wall of a partly demolished farm building. Ham Farm is the detached marsh pasture of Copton Manor in Preston, which lies several miles to the south.