Coordinates: 54°19′54″N 2°56′05″W / 54.331785°N 2.934640°W
Broad Leys is a house located in Ghyll Head, near Bowness-on-Windermere, South Lakeland, Cumbria, England. It is in the northern part of the parish of Cartmel Fell.
It was constructed in 1898 by Charles Voysey for the owners of Kendal Milne, a department store in Manchester. It was constructed in an Arts and Crafts style.
In 1951, it was acquired by the Windermere Motor Boat Racing Club and became the home of powerboat racing on Lake Windermere, until the introduction of a 10 mph speed limit in 2005. Since then the Club has retained the house, but has moved its racing programme to Barrow Docks.
The building is Grade I listed.
It was used as the location for the conclusion of the film The French Lieutenant's Woman (1981) and for the Agatha Christie's Poirot television episode "Dumb Witness" (1996).