Castlecliff is a suburb which lies within the Territorial Authority of Wanganui, one of 28 residential suburbs which form the wider region. Castlecliff is the 3rd largest suburb of Wanganui in terms of the total number of residential housing stock. Castlecliff provides a range of housing stock, with the earliest residential housing recorded in the area constructed between 1880 - 1889. The majority of the residential housing stock in the locality was constructed between 1960 - 1969. Residential housing stock in Castlecliff is made up of approximately 95% residential housing , 2% residential investment housing and 2% lifestyle properties.