Ayers House is the present-day name for a historic mansion on North Terrace, Adelaide, South Australia. It is named after Sir Henry Ayers, five times Premier of South Australia and wealthy industrialist, who occupied it from 1855 until 1897. It is the only mansion on North Terrace to have survived. The house has been listed on the South Australian Heritage Register since July 1980. History Plans for the two-storey mansion, which for the greater part of its existence was named Austral House, were developed in 1846 for William Paxton, an Adelaide chemist. It is constructed of local bluestone and is Regency period in style, thought to have been designed by George Strickland Kingston, who interpreted the work of Robert Kerr, a leading architect of the period in Britain. In 1855, Sir Henry Ayers leased the property when it was a 9-room brick house. He transformed it into a 40-room mansion mainly during the 1860s; it was finally completed in 1876. It is well preserved. Internally, the rooms feature hand-painted ceilings, stencilled woodwork and memorabilia from the Ayers family, demonstrating the wealth of the owners at the time it was built. Ayers also commissioned a basement to escape the hot Adelaide summers. During its owner's parliamentary service, the house was the venue for cabinet meetings, parliamentary dinners and grand balls. It was one of the first properties in Adelaide to be fitted with gas lighting. The names given to many of the rooms, and their functions, were revealed in notes made by Sir Henry when he recorded the temperatures in various places in the house during Adelaide's very hot weather. The first such record was dated 1874. Use In 1897 Ayers died, and in 1909, following an Adelaide Club ball at the house, Henry Newland proposed the club purchase the property. Plans were drawn up then abandoned. Eventually, it was sold in 1914 to Arthur John Walkley and Henry Woodcock's company, Austral Gardens Ltd. They built a dance hall, "The Palais Royal", on its western side and entertainment areas on the east. Since then, the house has had many uses, including a club for injured soldiers from 1918 to 1922, and an open-air café from 1914 to 1932. The Government of South Australia bought the property in 1926 for nurse accommodation and training – it was opposite the now-closed Adelaide Hospital. Further dormitories, built in 1946, were removed in 1973. The