 Since then, it has gone through several design changes and does not have a reliable construction date.By the end of 2016, there were about ten proposals for supertall buildings in downtown and Brickell.In addition to OBCC and OPB, these included The Towers by Foster + Partners, One Virgin MiamiCentral, 300 Biscayne, Capital at Brickell (CCCC Miami), World Trade Center of the Americas, Skyrise (tower), as well as the more speculative Sky Plaza and One Fifth.