Commercial buildings, from hotels, offices to retail outlets, are responsible for approximately 10% of Australia’s greenhouse gas emissions. As part of advocating for sustainable buildings in the Sydney CBD, the City of Sydney developed the Building Tune- Up Program to support building owners and facilities managers to think about retrofitting opportunities that will bring cost-effective building performance improvements. This may include optimising building management systems, improving maintenance methods and reducing energy, water and waste. This session will look closer into City of Sydney’s program, including: