These two paragraphs from the article describe seven planned buildings, three of which would be 15 or 16 stories tall:
The latest preliminary plan follows a series of proposals submitted over the years, as the project was upended by an eminent domain battle. It would include seven buildings, some as tall as 16 stories, built out in two phases. The first would include a 475,000-square-foot, 16-story office tower; a 100,000-square-foot hotel; a 90,000-square-foot building for retail or entertainment; a 120,000-square-foot medical office with retail or restaurants; and a 15-story 330,000-square-foot mixed use building for entertainment or retail and residential space.
The second phase would include a 15-story, 275,000-square-foot building for hotel, office and residential.