Roslyn Bush is a suburb which lies within the Territorial Authority of Southland, one of 43 residential suburbs which form the wider region. Roslyn Bush is the 27th largest suburb of Southland in terms of the total number of residential housing stock. Roslyn Bush provides a range of housing stock, with the earliest residential housing recorded in the area constructed between 1910 - 1919. The majority of the residential housing stock in the locality was constructed between 1970 - 1979. Residential housing stock in Roslyn Bush is made up of approximately 1% residential housing and 99% lifestyle properties.