Engineers, Architects, Builders and Developers are increasingly being asked to deliver “sustainable” buildings. While the definition of a sustainable building is a constantly evolving debate, the term has generally come to be used to describe a building that requires less natural resources to construct and operate than a traditional building, while also providing a healthy environment for its occupants.David Baggs FRAIA, Green Star AP, LEED AP, ABSA, ASHRAE, is CEO and Technical Director of Global GreenTag Pty Ltd and Program Director of Global GreenTagCert a life-cycle assessment based ecolabel rating program. He is an award winning chartered architect, sustainability, energy-efficiency and eco-materials consultant with over 30 years experience in sustainable development design and consulting on some of Australia's most iconic green projects. He is both a Green Star and LEED Accredited Professional.