Prevention is the best way to avoid or minimise the risk of flooding on your property. Flooding can threaten people's lives and property and damage our environment. Find out if your property is flood prone and what you can do to help prevent floods affecting it.
A flood prone property is one that has the greatest risk of being affected by a flood. Flooding on your property can occur for a number of reasons, including:
The best way to avoid or minimise the risk of flooding is to plan before developing your property. Buildings should be located as far back as possible from streams, rivers, drains or other waterways.
To find out if your property is in a flood prone area, contact your local district council for a Land Information Memorandum (LIM) report. The LIM report uses information from a wide range of sources, including Waikato Regional Council, to indicate known flood hazard areas in each district.
Check out river flooding risk areas in the Waikato region.
Our river levels and rainfall pages have information on river levels, river flows and rainfall readings including river levels and rainfall readings for the last seven days. You can also call our 0832 InfoLine numbers to get the latest information from our monitored sites around the region over the phone.
If your property is in a flood prone area and you wish to build on it, you will need to get a building consent and a flood hazard report before building can take place.
Some activities involved in flood-proofing your property may have an effect on the environment, which means you may need resource consents from Waikato Regional Council.
A flood hazard report contains information about the 1% AEP (annual exceedence probability) design flood level (i.e., a 1-in-100 year event) and the freeboard level. Habitable room floor levels are recommended to be above both the 1% AEP flood level and the freeboard level. Contact your local district council to find out the levels in your area.
You will still need a flood hazard report if your property is protected by flood control methods such as stopbanks, dams and floodgates.
The diagram below shows how stopbanks protect areas prone to flooding and how the 1% AEP flood level and freeboard levels are applied.
Waikato Regional Council is responsible for the overall management of rivers and catchments in the Waikato region. Flood protection is part of our river and catchment management activities along with soil conservation and river management.