A cantilevered main dwelling, a glass-walled guesthouse and a contemplative concrete structure called a folly. The three buildings are just the start of a strikingly designed rural escape in south-west Tasmania that is up for grabs at $3.5 million or more.

At Koonya, an hour’s drive from Hobart in the state’s south-west, the three structures that comprise “Triptych”, as it is called, are spread over a 40-hectare rural escape.