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Reference buildings


BRANZ has calculated the carbon footprint and other environmental impacts of a set of reference buildings using the current data available in LCAQuick.

These reference buildings comprise:

  • commercial offices ranging from a gross floor area of 1500 m² up to over 9000 m² - these are modelled as structure and enclosure only
  • stand-alone houses that have been designed to achieve compliance with the New Zealand Building Code (NZBC) and others that have been designed to exceed the NZBC, particularly with respect to thermal performance and energy efficiency
  • a medium-density housing (MDH) building
  • an apartment building.

The results for the reference buildings are embedded in LCAQuick and may be used as comparators during design. They do not constitute a statistically representative sample but do provide examples of recently designed and consented dwellings.

Operational energy use is simulated. For residential typologies, this simulation assumes the dwelling is operated to achieve an indoor comfortable temperature, so it is warmer, drier and healthier.

All buildings are simulated for Auckland, Wellington and Christchurch.

Get more detail

These study reports provide more information about the reference buildings and how they have been modelled: