Dunster Working Watermill Dunster Working Watermill Dunster Working Watermill (also known as Castle Mill) is a restored 18th century watermill, situated on the River Avill, close to Gallox Bridge, in the grounds of Dunster Castle in Dunster, Somerset, England. It is a Grade II* listed building. The mill stands on a site where a mill was first recorded in the Domesday Book, but the present building was constructed around 1780. It closed in 1962 but was restored in 1979 and is still used to grind flour. The equipment is powered by two overshot wheels. It is owned and run by the National Trust.
Feudal barony of Dunster War he made Dunster Castle available for use as a convalescent home by the Royal Navy. On the death of his father in 1944 the payment of a large sum in Death Duties left the estate indebted and uneconomic to operate, and Geoffrey, whilst reserving a tenancy for himself at the Castle, sold the estates to a property development company which sold them on to the Commissioners of Crown Lands. He bought back the Castle and grounds in 1954 and opened them to the paying public. He died in 1957 and his widow remained at the Castle until her death