The 350 Queen Street site, which hosts KTS House –a 21-story office building– was purchased by Chinese developers
3L Alliance in October 2014, for $135 million.[2] In 2015, 3L Alliance submitted plans through
Fender Katsalidis Architects and
Cox Architecture for two residential skyscrapers reaching heights of 249 metres (817 feet) and 251 metres (823 feet), respectively, and to comprise 1,700 apartments across 79 levels.[1] These plans would retain the KTS House commercial skyscraper, which would sit in between the twin skyscrapers.[3]
In October 2015, the project received planning approval by the
City of Melbourne, before being approved by the Minister for Planning
Richard Wynne in March 2016.[4][5] Construction on the North Tower commenced in January 2018 and was completed in 2021.[1]