Why has nathers changed to 7 stars?

Short answer

The NatHERS minimum increased from 6 to 7 stars to improve energy efficiency reduce emissions and create more comfortable homes across Australia.

Full answer

The change to 7 stars is part of the National Construction Code 2022 update. The building sector is a large source of emissions and household energy costs continue to rise. Requiring 7 star homes ensures better thermal design and lower energy demand. This supports Australia's net zero targets and helps households save money over the life of the building.

Why this matters

Without 7 star compliance new homes cannot be approved under the NCC. The change also reflects growing community and government expectations for sustainable housing.

How Certified Energy can help

We guide clients through the transition to 7 stars by identifying design improvements early in the process. Our assessors provide clear feedback to ensure compliance and efficiency.

Related regulations

•  National Construction Code 2022

• Australian Government Climate and Energy policies

• NatHERS framework managed by CSIRO

Helpful resources 

• What is a NatHERS 7 Star Rating?

• What are the benefits of a NatHERS 7 Star home?

• How do you achieve a NatHERS 7 Star Rating?

• Do renovations need to meet NatHERS 7 Star requirements?