Crown Sydney (also referred to as One Barangaroo), is a skyscraper in Barangaroo, New South Wales, Australia. Developed by Crown Resorts, it mainly comprises a hotel, residential apartments, and a casino. It was designed by WilkinsonEyre, standing at a height of 271.3 m (890 ft) with 75 floors, making it the tallest building in Sydney and 4th tallest building in Australia. Construction first began in October 2016, before topping out in March 2020. Crown Sydney was completed in December 2020.

Lendlease was contracted for the main construction of the structure, while the Robert Bird Group oversaw structural engineering and LCI as head of MEP servicing. Initial site works commenced in October 2016, starting with excavation and decontamination of the site, mostly of remnants of asbestos; indicative of the site's industrial history. Excavation of the basement and foundation works would continue throughout 2017. Between February and March 2018, tower cranes were assembled on site, to commence works on the main core and floorplates, which would see the structure start to rise throughout 2018. A top-down method of construction was utilised on the core.

By March 2019, the structure had reached a height of 120 metres (394 ft). The structure continued to rise throughout 2019, reaching a "halfway point" in its construction by May 2019, which would be followed closely by the installation of approximately 7000 triangular glass panels for the facade of the building. The main core of the structure topped out in March 2020, followed by the floorplates which topped out and reached the building's full architectural height in May 2020. Fit-out of the internals of the building and facade continued throughout 2020, before completion was reached in December 2020. Crown Sydney was officially inaugurated to the public on 28 December 2020.

The design and form of the tower take inspiration from natural forms and curved geometry, emanating from three "petals" that twist and rise together, The geometry of the tower was derived using parametric 3D modeling, to accommodate a 60-degree twist in the outer skin with helical columns on the perimeter while maintaining a vertical core structure.[31] According to Wilkinson Eyre, the tower "is derived from a sculptural form that is reminiscent of three twisting petals and takes inspiration from nature, being composed of organic forms without literal or direct reference". Additionally, the twisting shape of the upper and intermediate levels of the tower is designed to maximise views of the Harbour Bridge and the Opera House. Founding architect Chris Wilkinson further describes the design of the tower as "a sculptural form that will rise up on the skyline like an inhabited artwork, with differing levels of transparency, striking a clear new image against the sky”.

Crown Sydney comprises a floor area of 146,500 m2 (1,577,000 sq ft). The casino floor along with bars, restaurants, and other hospitality venues occupy the podium of the tower. Crown Resort's six-star hotel makes up the lower levels of the tower from levels 6 to 32, including the protruding lower southeast wing of the building. Private residential apartments occupy levels 33 to 63 of the tower, while duplex penthouses occupy levels 64 to 66. A public observation deck occupies a small section of level 66. The tower is topped with the hotel's "sky villas", occupying levels 67 to 69, with utilities making up the remaining levels of 70 and 71.

Popular opinion in Sydney is divided on the design of the Crown Sydney tower. Australian and international media have reported that the building has been nicknamed "Packer's Pecker", in reference to its primary proponent, James Packer, and its outsized massing and phallic shape. Architectural commentators have commented unfavorably on the quality of the design, especially compared to other works by its designers. On the other hand, the tower has also been favourably called "epic" and described as "opulence, style, and substance".

Emporis named Crown Sydney as the winner of their prestigious Skyscraper Award in 2021; the first building in Australia to win the award in the competition's 20-year history. Coming ahead of the Telus Sky tower and One Vanderbilt in 2nd and 3rd places respectively, a jury of international architects attributed Crown Sydney's "extravagant design of (its) exterior facade" as the deciding factor for its first place finish.

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Video credit: Kate Branch
Audio credit: Ruthless - NEFFEX

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