Ashfield Council has undertaken a Flood Study for the Hawthorne Canal and Dobroyd Canal catchments. Land subject to flood controls is shown on the flood control lot map. A property identified on this Map is required to comply with the flood related development controls which are contained in the following Council document - Part E8 - Interim Flood Development Control Policy. View flood development controls relating to Exempt and Complying Development.
For properties subject to flood development controls shown on the flood control lot map a Certificate with Flood Design Levels will be issued by Council on submission of a written request and subject to a fee. The certificate will provide the 1:100 year Flood Design Level and the Probable Maximum Flood (PMF), and will be to the Australian Height Datum (AHD). Applicants must provide a survey by a registered surveyor to determine the actual ground and floor levels. All surveys undertaken are be to the AHD using a survey datum with a minimum vertical class “D” and a vertical order of five (5) as identified on the Survey Control Information Management System on the Land and Property Information website.
For areas where Council has not undertaken a flood study but which are adjacent to water courses, Council may require a Flood Study to be undertaken by applicants to accompany any development application