Islington is a suburb which lies within the Territorial Authority of Marlborough, one of 36 residential suburbs which form the wider region. Islington is the 17th largest suburb of Marlborough in terms of the total number of residential housing stock. Islington 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 1980 - 1989. Residential housing stock in Islington is made up of approximately 97% residential housing and 3% residential investment housing properties.