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 designated by English Heritage as a Grade I listed building and Scheduled Ancient Monument. The castle has required continuing maintenance work, in particular to its roof, itself an important historical feature. Efforts have been made to gradually redecorate the castle in a period style, using reproductions of original wallpapers and materials. The National Trust installed solar panels behind the battlements on the roof in 2008 to provide electricity and make the premises more environmentally friendly. This was the first time the National Trust have taken this approach to a Grade I listed building, and it is expected to save 1,714