Are energy ratings standard across Australia?

Australian States, Territories, and local governments have different energy rating requirements, although the basic software used to assess thermal performance of a building is the same.

On top of meeting the Performance Provisions with a NatHERS energy rating or using Deemed-To-Satisfy; if you’re building a new home in Victoria, you will need to meet the Victorian Building Authority’s (VBA) Sustainability Measures that includes a solar hot water system or a rainwater tank. We will inform you of the basic requirements to satisfy these measurements, but your surveyor has the final say if you require any variations.

If you’re building a new home in NSW you will need to satisfy BASIX requirements.