Madeley is a suburb of Perth, the capital city of Western Australia 20 kilometres north of Perth's central business district. Its local government area is the City of Wanneroo. Previously part of Landsdale, much of the suburb was rural in character until the 1990s, with market gardening a common activity. From 2001 onwards, extensive property development resulted in massive population growth, with the Property Investor Magazine of December 2007 estimating a growth rate of 33.3% per year.