Green Star

The what and why of certification

Green Star assesses the sustainable design, construction and operation of buildings, fitouts and communities. Choosing Green Star can help you save money, create a healthy place for people, minimise your environmental footprint and build a better future for us all.

Our built environment is currently the world's single largest contributor to greenhouse gas emissions, and also consumes around a third of our water, and generates 40 per cent of our waste. From individual buildings to entire communities, Green Star is transforming the way our built environment is designed, constructed and operated. Launched by the Green Building Council of Australia in 2003, Green Star is Australia's only national and voluntary rating system for buildings and communities. Green Star is helping to improve environmental efficiencies in our buildings, while boosting productivity, creating jobs and improving the health and well-being of our communities.

We have issued more than 2,350 Green Star certifications.

  • 40% of office space is Green Star certified
  • 40% of retail space is Green Star certified
  • 6% of the workforce head to a green office each day
  • 1.3 million people visit a Green Star-rated shopping centre each day
  • 60,000 people live in Green Star-rated apartments
  • 480,000 people are moving into Green Star communities. 

green star reasons to choose

Whether you're a building owner, operator or occupant, creating a green community or looking to live more sustainably, Green Star offers a framework of best practice benchmarks for sustainability that you and the marketplace can trust.

How can Green Star help you?

Need help understanding the terminology? Discover the meaning of Green Star terms.

View definitions

Green Star has introduced a new competitive dynamic that, these days, is often the difference between winning and losing business.

Robert Coombs, President and Chief Executive Officer, Asia Pacific, Interface Inc.

Five simple steps to certification



Log your project online.



Get familiar with the documentation needed to demonstrate that your building, fitout or community meets Green Star's sustainability benchmarks with our submission guidelines.



Submit your documentation to the GBCA for Green Star assessment.



Green Star submissions are reviewed by an independent panel of sustainable development experts and an overall score is assigned.



A Green Star certified rating is awarded as a third-party verification of a project's sustainability.

Register your project

Four rating tools available for certification

Rating systems no longer available

Green Star legacy rating tools

As Green Star evolves, legacy rating tools are no longer available for new projects.

Green Star legacy

Green Star is an internationally-recognised sustainability rating system. 

If you'd like to get more involved with us, need some advice on Green Star or have an idea you'd like to share, we'd love to hear from you.

Need some technical support?

Search Green Star FAQs

Green Star Governance

The Green Star Steering Committee and supporting advisory groups ensure the rating system continues to be Australia’s leading rating tool for the built environment. They also ensure continuous improvement of the certification process, and increase industry participation in Green Star.

Find out more on how you can get involved