Ngaio is a suburb which lies within the Territorial Authority of Wellington, one of 52 residential suburbs which form the wider region. Ngaio is the 12nd largest suburb of Wellington in terms of the total number of residential housing stock. Ngaio 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 1970 - 1979. Residential housing stock in Ngaio is made up of approximately 95% residential housing and 5% residential investment housing properties.