Every rental property in New Zealand will have to be fully insulated within four years, Government has confirmed.

Housing Minister Nick Smith has announced plans to strengthen residential tenancy laws, including requirements for landlords to provide smoke alarms and insulation, and to declare the standard of insulation on tenancy agreements.

The requirement would apply from July for Government-subsidised social housing, and from July 2019 for all other rentals including boarding houses. There would be some exceptions, such as in houses where it was physically impossible to retrofit insulation.

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