Tea Tree Gully (TTG) is a suburb in the greater Adelaide, South Australia area, under the City of Tea Tree Gully. Tea Tree Gully is in the City of Tea Tree Gully local government area, the South Australian House of Assembly electoral district of Newland and the Australian House of Representatives Division of Makin.
The suburb acquired its name from the white flowered 'tea trees' (Leptospermum lanigerum) that grew in the gully. Their leaves were brewed as a tea substitute by early settlers. John Stevens originally purchased land in the area, subdividing it in 1850 and naming the settlement Steventon. By 1867 the settlement was known variously as Tea Tree Gully or Steventon, but Steventon had dropped from common usage by 1900. It was also sometimes known as "Teatree Gully".
The gully is a notable one, as it provided a gradient negotiable by bullock wagons travelling through the Mount Lofty Ranges and it had permanent springs which promoted the growth of tea tree.
The Highercombe Hotel was built in 1854. Its first licensee was William Haines, who served as District Clerk of Tea Tree Gully council for 37 years and Member of Parliament for 6 years. The State Government purchased the building in 1879 and it was used from 1880 to 1963 as a post and telegraph office. During this period part of the building was used as a school classroom, and accommodation for Headmasters' and the Postmasters' families. From 1963 to 1967 the Tea Tree Gully Council used it as an office and library. The National Trust took over the building in 1967 and their Tea Tree Gully branch restored it and converted it to a folk museum.
- Auhl, Ian (1979). Tea Tree Gully Sketchbook. Millsted, Rex (illust.). Hawthorndene: Investigator Press. p. 6. ISBN 0-85864-028-7.
- . "Local history of Tea Tree Gully".
- "Parliamentary Trip to Teatree Gully". South Australian Register. Adelaide. 7 August 1879. p. 6. Retrieved 19 November 2012 – via National Library of Australia.
- Premier Postal History. "Post Office List". Premier Postal Auctions. Retrieved 26 May 2011.
- "National Trust Museum (former Highercombe Hotel)". South Australian Heritage Register. Department of Environment, Water and Natural Resources. Retrieved 30 March 2016.
- "Former Highercombe (subsequently Tea Tree Gully) Council Chambers". South Australian Heritage Register. Department of Environment, Water and Natural Resources. Retrieved 30 March 2016.
- City of Tea Tree Gully (1986). History, heritage, humour. Tea Tree Gully, South Australia: City of Tea Tree Gully. pp. 33–36. ISBN 0-7316-1398-8.
- "Old Highercombe Hotel". National Trust South Australia. Archived from the original on 20 September 2007. Retrieved 9 March 2008.