High Quality Content by WIKIPEDIA articles! Architecture in Australia incorporates the architecture produced in the area of the Commonwealth of Australia (or in its preceding indigenous and colonial societies). Indigenous Australians produced only semi-permanent structures and during Australia`s early Western history, it was a collection of British colonies in which architectural styles were strongly influenced by British designs. However, the unique climate of Australia necessitated adaptations and 20th Century trends reflected the increasing influence of American urban designs and a diversification of the cultural tastes and requirements of an increasingly multicultural Australian society.