On 14 December 1906, Oaklands was bought by Thomas Currie Tait for £15,000. In 1923 Tait offered 'The Park' to the South Australian Government for £100 an acre. When the offer was not accepted, Hamiltons acquired the vineyard and in September 1923, W. Pethick " Sons, vignerons and orchardists, bought the homestead. The remaining land, about, was secured by T.M. Burke Pty Ltd, for £23,000, for building allotments. The portion of Oaklands which became the site of the Warradale Army Camp in both World Wars, was acquired from the State on 26 July 1945 for £24,020. The Barracks comprise bounded on the north by Oaklands Road and on the west by Morphett Road. In 1940 the area was occupied by 9 Infantry Brigade as a mobilization centre and brigade camp and on 10 February 1942 the site was taken over under National Security Regulations. In 1952 when a number of Oaklands Estate gum-trees were being uprooted to make way for Housing Trust homes a local group formed the Oaklands Estate Residents' Association in the hope of preserving some of the remaining trees. In a triangle bounded by Oaklands Road, Sturt River and the Marino railway line, they volunteered to plant and care for 1,200 native street trees including a shrubbery around Marion Railway Station. They also helped to initiate the gazetting of a sizeable portion of land adjacent to Sturt River for recreational use. The Council has now taken responsibility for that area. Oaklands Park Post Office opened on 10 February 1969. In 1971 the South Australian Government set aside of land in Oaklands Park for its Road Safety Centre and on 17 October 1972 the Centre was officially opened. After the Open Day on 22 October the Centre began operating complete with traffic lights and road signs.
Amenities
Oaklands Park is best known as the location of the Westfield Marionshopping centre, the largest shopping complex in Adelaide. It includes over 300 speciality stores and includes a bowling alley, cinema, several department and discount stores, three supermarkets, and a food court. The Marion Cultural Centre is also adjacent to the Marion Shopping Centre that contains an Art Gallery, Café, Library and a Theatre. Events are held there all through the year with Art Exhibits, Theatre Performances and Blue Light Disco's being held. Opposite the Marion Cultural Centre is the South Australia Aquatic and Leisure Centre, also known as the State Aquatic Centre.
In the 2001 Australian Bureau of Statistics Census, the population was 3,029 with the females outnumbering the males 53.6% against 46.4%, 1.0% of the population of Oaklands Park Indigenous Australians. With most people in Oaklands Park born in Australia, 6.8% of the suburb's population was born in England, then the other origins of the people in the suburb being : Scotland, Netherlands, New Zealand and Germany.
