Wainui is a suburb which lies within the Territorial Authority of Auckland, one of 269 residential suburbs which form the wider region. Wainui is the 202nd largest suburb of Auckland in terms of the total number of residential housing stock. Wainui provides a range of housing stock, with the earliest residential housing recorded in the area constructed between 1900 - 1909. The majority of the residential housing stock in the locality was constructed between 2000 - 2009. Residential housing stock in Wainui is made up of approximately 5% residential housing and 95% lifestyle properties.