Ohau is a suburb which lies within the Territorial Authority of Horowhenua, one of 13 residential suburbs which form the wider region. Ohau is the 7th largest suburb of Horowhenua in terms of the total number of residential housing stock. Ohau 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 2000 - 2009. Residential housing stock in Ohau is made up of approximately 61% residential housing , 1% residential investment housing and 38% lifestyle properties.