Seddon is a suburb which lies within the Territorial Authority of Marlborough, one of 36 residential suburbs which form the wider region. Seddon is the 14th largest suburb of Marlborough in terms of the total number of residential housing stock. Seddon provides a range of housing stock, with the earliest residential housing recorded in the area constructed between 1900 - 1909. The majority of the residential housing stock in the locality was constructed between 1950 - 1959. Residential housing stock in Seddon is made up of approximately 69% residential housing , 1% residential investment housing and 30% lifestyle properties.