Wynn Macau is a casino and resort complex with 600 hotel rooms, 19,000m² of gaming facilities, five restaurants, 2400 m² retail space, atrium featuring the “Golden Tree of Prosperity”, a swimming pool, a spa and other entertainment facilities. Combinations of steelwork, reinforced concrete and prestressed concrete structures are applied to different design elements, such as the unique operable iris feature, long span casino hall and ballroom. A mixed piled foundation system is adopted to address the varying ground conditions over the reclaimed site.