1 Bligh, Sydney, Australia
1 Bligh is the first office tower in Sydney to receive the highest score in the Australian Green Star standard. The 28-story transparent tower was built with the highest grades of sustainability in mind; it successfully maximizes unobstructed views of the famous Sydney Harbor Bridge.
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Designed by Ingenhoven Architects, the core element of the tower’s design is an atrium that provides natural light and ventilation throughout the offices and balconies that face it. It’s also the first tower in Australia to employ a double-skin facade and the use of natural ventilation. The building was completed in 2011.