Evidence‑based action for a better future

We empower our teams and supply chain to deliver tangible environmental outcomes for our clients and end users based on credible evidence.

In 2019, Multiplex became the first construction contractor in the world to sign the World Green Building Council’s Net Zero Carbon Buildings Commitment. This commits us to only owning and occupying assets that operate at net zero carbon by 2030 and supporting our clients to do the same. It is an essential step in moving towards a low carbon construction industry.

“Our Net Zero commitment puts us in a position where we can help our clients to make more informed decisions about carbon by showing them the options and quantifying the costs.” John Flecker, CEO

Shifting the built environment sector towards a low carbon future

Multiplex was a founding member of the Cooperative Research Centre in Australia for Low Carbon Living – a seven-year government-funded research and collaboration hub to develop low carbon building solutions. Watch our video to learn more.

Our approach to the Environment

Over the years we have invested in understanding how we can use better design methods and construction materials to reduce environmental impacts. Our project teams, major subcontractors and suppliers have developed core competencies in environmentally friendly building techniques to ensure the successful delivery of sustainability targets on our projects. We learn from each challenge encountered and refine procedures to create an increasingly knowledgeable team.

Our activity at a glance


contractor in the world to take an official step towards becoming a net zero company, signing the World Green Building Council’s Net Zero Commitment

142,000 kWh

of solar power generated in 2019 from our temporary site office set-ups in the Middle East


cubic metres of waste diverted from landfill in Europe in 2018

Gillies Hall, Monash University
Pioneering Passive House in Australia

Our Gillies Hall mass timber project at Monash University was the first large scale building in the southern hemisphere to achieve Passive house certification, read more about the project

Delivering Derwent London’s first net-zero carbon building

80 Charlotte Street