 Despite this, Sydney is still home to Australia’s oldest public building, Old Government House, located in Parramatta.Sydney's notable new buildings were designed by the Austrian-Australian architect Harry Seidler, as well as by international architects such as Jørn Utzon, Jean Nouvel, Richard Rogers, Renzo Piano, Norman Foster, and Frank O. Gehry throughout the 1960s up until the 2010s.The British established a colony in Sydney Cove in January 1788 after the First Fleet sailed 9 months from Portsmouth.