Waterloo is a small town in the South West region of Western Australia, located on the South Western Highway between Bunbury and Brunswick Junction.

[2] In December 2013 the Western Australian Planning Commission's (WAPC's) Greater Bunbury Strategy identified an urban expansion area in the north of Waterloo.

[3] In April 2016 the WAPC released a draft Wanju District Structure Plan for the 1,245 ha (4.81 sq mi) urban expansion area, showing the broad layout of the urban expansion area and a conceptual fly-through video.

[4] "Wanju" means "welcome" in the Noongar language.

The Wanju District Structure Plan will provide an estimated 20,000 dwellings and 4,000 jobs.