Whangārei District Council - Land Instability

This map shows areas in the Whangārei district that are prone to landslides, slips, or other ground movement. Parts of Whangārei have steep terrain with clay-rich soils that get waterlogged in heavy rain -- a combination that leads to slips.

If your whenua falls within an instability zone, it may affect what you can build and where. The council typically requires a geotechnical assessment (a specialist ground stability report) before granting building consent in these areas.