Felin Frogwy is a small stone tower, thought to have been built in the early nineteenth century and disused by the 1890s, when the machinery was removed and it was converted to a dwelling with a low conical roof. It was derelict in the 1970s, but was later refurbished as living accommodation, with a single-storey extension on the north side. In 2006 it was again refurbished and the tower was re-rendered.
W J Crompton, RCAHMW, 11 June 2008.