Tainui is a suburb which lies within the Territorial Authority of Dunedin, one of 97 residential suburbs which form the wider region. Tainui is the 32nd largest suburb of Dunedin in terms of the total number of residential housing stock. Tainui 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 1920 - 1929. Residential housing stock in Tainui is made up of approximately 99% residential housing and 1% residential investment housing properties.