Island Bay is a suburb which lies within the Territorial Authority of Wellington, one of 52 residential suburbs which form the wider region. Island Bay is the 8th largest suburb of Wellington in terms of the total number of residential housing stock. Island Bay 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 Island Bay is made up of approximately 90% residential housing and 10% residential investment housing properties.