States and Territories

The energy efficiency requirements within the NCC is given legal effect by relevant legislation in each state and territory, which essentially ‘call-up’ the NCC to fulfill certain technical requirements for new buildings and new building work, such as alterations or additions. More information is available from state or territory building regulators.

In New South Wales, the online Building Sustainability Index (BASIX) system replaces the NCC energy efficiency requirements and adds other aspects of sustainable development. BASIX accepts NatHERS software results as one way of meeting its separate targets for the heating and cooling performance of the building.

Nationwide House Energy Rating Scheme
Supported by data from the Nationwide House Energy Rating Scheme (NatHERS)