Onemana is a suburb which lies within the Territorial Authority of Coromandel, one of 39 residential suburbs which form the wider region. Onemana is the 11st largest suburb of Coromandel in terms of the total number of residential housing stock. Onemana provides a range of housing stock, with the earliest residential housing recorded in the area constructed between 1950 - 1959. The majority of the residential housing stock in the locality was constructed between 1980 - 1989. Residential housing stock in Onemana is made up of approximately 95% residential housing , 1% residential investment housing and 4% lifestyle properties.