‘Clappermarsh’ is a lost smallholding shown on the 19th century Tithe Map. The ruins of the smallholding are located a short distance to the south of the stepping stones at Dunsford Mills.
Clappermarsh was mentioned as ‘Clapper Marsh’ in 1748, so can be dated back to at least that year. It is believed there was a clapper bridge over the River Teign at this point and the smallholding probably got its name from this. That said, the author is unaware of any historical clapper crossing the Teign at this point, just the stepping stones.