Flood planning level maps

The flood planning level map identifies hazard areas that are subject to designated flood events. Access to these maps is via the City Plan Interactive Mapping tool.

If you are developing on land that is identified within the flood planning level map, you will need to undertake further assessment. You will need to review the necessary provisions in the flood overlay code. For more information on development applications, visit Development application pre-lodgement advice.

Note: If your property is not within the hazard areas that are subject to flood, this does not mean you are immune to flooding. This may be because:

  • There is always a possibility of having rarer rainfalls that may overwhelm our protection measures.
  • There may be small creeks on higher grounds that are not fully included in our models yet. These creeks may experience flash flooding, causing short-term overland flooding.
  • Blockages to drainage systems and restrictions to the flow of water in waterways can result in flooding.
  • A property may be on an overland flow path which is yet to be included in the City Plan Flood Planning Level Map.

Flood planning level mapping

The City's flood planning level mapping commenced as part of City Plan Version 6 on 20 September 2018.

The updated mapping considers future changes to climate. It incorporates the projected increase in sea level of 0.8 metres above present-day levels and 10% increase in storm tide intensity by 2100, established by the State Government in 2015.

The updated mapping also includes a 10% increase in rainfall intensity to account for the impact of climate variability on the city's hydrology, following advice from industry representatives. Find out more about the updated mapping.