Westfield Tea Tree Plaza
|Location||Modbury, South Australia|
|No. of stores and services||245|
|No. of anchor tenants||8|
|Total retail floor area||95,332m2|
|No. of floors||2|
|Parking||4500 over 3 floors|
Westfield Tea Tree Plaza is a large shopping centre located in Modbury serving as a shopping hub for Adelaide's growing north eastern suburbs. It is linked to the city by Adelaide's unique O-Bahn system, which terminates at the Tea Tree Plaza Interchange. There is a smaller shopping centre building called Tea Tree Plus slightly to the north of the main centre. Major tenants include Myer, Harris Scarfe, Target, Kmart, BIG W, Woolworths, Coles, Aldi and Hoyts Cinemas. With 245 stores, Tea Tree Plaza is the second largest shopping centre in Adelaide, only Westfield Marion is larger.
The centre was built by Myer Shopping Centres Pty. Ltd. as part of an extensive subdivision of the area, which at the time was the largest remaining underdeveloped, nonindustrial land in the Adelaide metropolitan area. The centre opened in September 1970. Located in the City of Tea Tree Gully, it is the major shopping hub for the north-east of Adelaide. Tea Tree Plaza is owned by The Westfield Group and AMP Limited, who each own 50%. In July 2014, the Westfield Group became two companies Scentre Group and Westfield Corporation. The Westfield Group portion is now owned by Scentre Group. 
A major A$190 million expansion announced in 2006, to incorporate Tea Tree Plus and add about 95 new stores and a four-storey car park has been put on hold. If the redevelopment is completed, the total number of stores will equate to about 336 retailers. It was still in development in 2013, with building approval having lapsed twice and been extended then lapsed again, while Westfield had successfully proposed to reduce the car park to two storeys.
- "Adelaide, Australia: O-Bahn Guided Busway" (PDF). Transportation Research Board. Retrieved 26 March 2013. United States National Academy of Sciences
- Condon, Turi (20 June 2014). "Westfield restructure a success: Lowy". The Australian Business Review. Retrieved 14 October 2014.
- Novak, Lauren: Shopping centres in $190m upgrade, The Advertiser, 19 October 2006.
- "Westfield reduces proposed carpark in $200m Tea Tree Plaza upgrade". Leader Messenger. 14 February 2013. Retrieved 30 March 2016.