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.
Dunster Castle the Commonwealth years and the Restoration of Charles II to power in 1660. Francis' heir, another Francis, married a wealthy heiress worth £2,500 a year (£331,000 in 2009 values) and with this income set about modernising the castle during the 1680s, in particular building a grand staircase in the latest style. Francis was a colonel in the local militia and in 1688 backed William of Orange's attempt to oust James II; when William landed in Devon, Francis mustered a number of companies of infantry at Dunster on 19 November to support him, which formed the basis for the later Green