The judges chose International House Sydney at Barangaroo South for this award because it is Australia’s first timber engineered office building and one of Sydney’s newest cutting-edge sustainable commercial buildings. It is an expression of innovation and sustainable design excellence and represents a new movement in commercial building design and construction. The use of Cross-Laminated Timber (CLT) and glulam in such a high-profile project has encouraged industry interest in timber as a building material. It offers similar structural outcomes as traditional concrete and steel, but at a fraction of the weight. It can be erected rapidly (30 per cent less time), resulting in significant savings and significant reductions in safety risks during construction. The design of the timber beams was modified to incorporate reinforcing with a product called Laminated Veneer Lumber (LVL). Four prototypes were developed in collaboration with Stuttgart University in Germany. Today, International House showcases the world’s first LVL-reinforced glulam beams. The resolution of the construction issues including prefabrication with minimal wastage plus fire safety and the construction detailing makes Lendlease a clear winner of this award.