 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 . 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 85 acres ( 34 ha ) 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 . 
