The main mill building was expanded at various times, with a two story extension added to the north; a fireproof stone staircase to the east; a wheelhouse; a fourth floor to the main building; and an adjacent combing shed built over the tail race leat flowing from the waterwheel.
42.
They used the same head and tail race and operated until 1959 . When the mill was restored in 1983, a diameter waterwheel of similar design to that of Hewes by his pupil Sir William Fairbairn, was moved from Glasshouses Mill in Pateley Bridge and installed to provide power to work the machinery.
