This will streamline building approvals and reduce regulatory burden for projects that go beyond baseline requirements, removing the need to show separate energy efficiency compliance. This new process supports productivity by simplifying processes and approvals and reducing unnecessary costs for industry and homeowners choosing Passive House construction.
More information about this change (including the area-weighted NatHERS formulas) is available in the Building (ACT Appendix to the Building Code) Determination 2026 and its Explanatory Statement. The Building (General) (Alternative requirements for unaltered parts) Determination 2026 and Explanatory Statement has also been updated to support this change. This option commenced on 24 April 2026.
