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Changes from the November 2019 Building Code Update have revised B1/AS1 to ensure new buildings are built safe and strong enough to withstand liquefaction effects. The appropriate information when submitting a building consent is required to help local authorities make an informed assessment.
Recent changes in legislation around building on liquefaction prone properties, brings the rules that are currently in place in Canterbury to the rest of New Zealand, meaning there are changes in the requirements for foundation design and information required when submitting building consents for properties on liquefaction-prone ground. The new rules will be mandatory across the country after 28 November 2021, ensuring new buildings are being built safely and strongly enough to withstand the risks of liquefaction. For more information on these new changes and to see if your property is in a liquefaction prone zone, see the links below.
Liquefaction Vulnerability Assessment – Level A Desktop Study
The November 2019 Building Code Update has revised B1/AS1 to ensure new buildings are built safe and strong enough to withstand liquefaction effects. To help district councils within the Waikato region, Waikato Regional Council have done a liquefaction hazard assessment to provide Level A liquefaction mapping for the whole region (See Map)