
The Plessis mill certainly existed before the end of the 16th century; but the oldest written record attesting to its existence dates from 1782. It was a seigniorial mill, although it was first owned by the Abbey of Saint Gildas de Rhuys, like many places in the Pays de Lorient. Built on the edge of the Plessis pond, the tide mill is located in the middle of the dike. It was also fed by the stream that bears the same name. Damaged by a fire in the 1930s, it will be again during the Second World War. Converted into a clothing factory in the 1960s, it will then be refurbished to accommodate housing.