Wainui is a suburb which lies within the Territorial Authority of Christchurch, one of 116 residential suburbs which form the wider region. Wainui is the 79th largest suburb of Christchurch 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 1890 - 1899. The majority of the residential housing stock in the locality was constructed between 1960 - 1969. Residential housing stock in Wainui is made up of approximately 77% residential housing and 22% lifestyle properties.