Renwick is a suburb which lies within the Territorial Authority of Marlborough, one of 36 residential suburbs which form the wider region. Renwick is the 6th largest suburb of Marlborough in terms of the total number of residential housing stock. Renwick 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 Renwick is made up of approximately 88% residential housing , 2% residential investment housing and 10% lifestyle properties.