Nationwide House Energy Rating Scheme (NatHERS)

Last updated: 5 November 2017
NatHERS star ratings provide information about the thermal performance (heating and cooling needs) of a home construction. Star ratings are based on information about the home design, construction materials and the climate where it is being built.
The energy efficiency of appliances (such as air conditioners) are covered under the Greenhouse and Energy Minimum Standards (GEMS) and not measured as part of the NatHERS star rating.
NatHERS Star Ratings are conducted by professionals using purpose-built software . Star ratings can be used by homeowners, builders, certifiers, councils and local, state and national governments for a number of purposes, including:

To meet the mandatory energy efficiency requirements for homes and major renovations based on the National Construction Code


To advise home owners, architects and builders on the energy efficiency of various house designs


To advise prospective home buyers on the thermal performance of a home they are interested in buying


Applicable Building Type(s) New residential, Existing residential Policy Requirement Level Voluntary Governance Development Authority: Commonwealth, State and Territory energy agencies and CSIRO Implementation Authority: Council of Australian Governments (COAG), comprising Commonwealth, State and Territory governments. Verification Authority: State and Territory Governments Compliance path End-uses considered: Space cooling, Space heating, Ventilation.

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End uses covered
  • Building end-uses
  • Building systems
  • Space heating
  • Space cooling
  • Ventilation
  • Building vintage
  • Existing buildings
  • New buildings