Green Star FAQs

The Green Star Buildings rating tool has been designed to rate the whole building under a single certification, regardless of the types of uses within it. The credit structure and inclusion of mixed-use pathways facilitates this. Similarly, only distinct projects are eligible for assessment and a rating cannot be sought for project components. This is because excluding portions of the...

The Upgrade Process: 1) Reach out to the GBCA meteam@gbca.org.au and let us know that you are interested in upgrading to Green Star Buildings. 2) If Version 3.7 of the certification agreement was executed when the project was registered, the project Applicant will need to execute a new certification agreement (Version 3.8). This includes key clauses relating to Green Star Buildings and...

For Minimum Expectations Provision of outdoor air - non-residential buildings Where ventilation is by natural means, the building must provide a 50% improvement of outdoor air required by AS 1668.4-2012 to each space in the regularly occupied areas under all likely weather conditions. Projects must justify how the regularly occupied areas will perform as a naturally ventilated space in these conditions. If...

Yes, 'Warm Charging' technology is considered an energy-reducing process in steel reinforcement production and project teams may demonstrate compliance with credit 20.1B Energy-Reducing Processes in Steel Reinforcement in the Green Star - Design & As Built rating tool on the condition that: The steel manufacturer has had their 'warm charging' process peer reviewed by an independent third party LCA practionier and...

The GBCA clarifies that the NCC climate zone associated with Perth, WA on page 37 of the Green Star Homes v1 Standard is incorrect.  The correct NCC climate zone for Perth, WA is zone 5.