EER
Energy Efficiency Rating
A 0–10 star rating measuring a residential property's thermal performance — mandatory disclosure in the ACT.
Energy Efficiency Rating is a 0 to 10 star scale measuring how well a building retains heat in winter and stays cool in summer, based on the Nationwide House Energy Rating Scheme (NatHERS). The ACT has required EER disclosure on every property listing since 1999 — buyers see a star rating on every advertisement. New homes built across Australia must achieve a minimum 7-star NatHERS rating under the 2022 National Construction Code update (progressively adopted by states).
What does EER mean on an Australian house listing?
EER stands for Energy Efficiency Rating — a 0 to 10 star measure of a home's thermal performance based on the Nationwide House Energy Rating Scheme (NatHERS). A higher EER means lower heating and cooling bills. EER disclosure is mandatory on every ACT property listing and increasingly common voluntarily elsewhere.
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