Cotherstone Castle was a castle with a motte and possible bailey, built circa 1090. In 1200, the wooden building was replaced by a stone building. The remains include an earth mound and traces of a probable fishpond. This is a Scheduled Ancient Monument protected by law. (1)

There are also the remains of a two-winged building which is thought to be a hall of later date. The remains consist of the castle mound, average height 3.4 metres and one fragment of masonry footing 9 metres long. A series of terraces have been constructed across what was probably the bailey. As well as the 'two winged building' there are remains of a formal garden and fishponds. This is a Scheduled Monument, protected by law. (9)