Treasury data shows the cost of insuring a house jumped by more than 30 percent in some parts of the country, in less than a year.
The data, released to RNZ under the Official Information Act, also reveals that while insurance is still widely available, some companies appear to have withdrawn online quotes for entire regions.
A disaster economics researcher says the data is a taste of what could come as the risk of climate change-driven natural hazards increases.
Kate Newton reports.
