The Sanders family eventually decided to sell much of their portion of Mount Osmond, and around 1922–23 it was put on the market. Like earlier attempts at sales on Mount Osmond, little interest was received and none was sold until 1925.Kneebone (1956), p. 155. The land was developed into a golf course and Country Club with the assistance of the Burnside Council and its engineers. Credit to the novel idea went to H.E.S. Melbourne, Burnside's chief engineer at the time – who found support among numerous Burnside Councillors. The golf course and country club were developed on the highest part of the mount, on of former Sanders estate. The remaining land was sold by the country club to buyers with strict rules on the development and maintenance of the properties – specific rules applying to aesthetic features, particularly gardens, are of note. Even with a golf course and country club in the vicinity, as well as electricity and a water supply from Waterfall Gully's first creek the eighteen marketed lots once again sold poorly.Cox (1977).
