The Ministry of Business, Innovation and Employment (MBIE) has released the biggest energy efficiency changes to Building Code acceptable solutions and verification methods in more than a decade.

From MBIE’s website:

Updates to insulation requirements aim to reduce energy needed to heat and cool new buildings by 23% and to heat new homes by up to 40%. This will have positive health impacts for New Zealanders and contribute to increased energy savings allowing people to heat their homes and buildings more easily and efficiently, making them more comfortable and healthier to live and work in.

You can read more here.