Now, Holleran and his co-developers hope to build a $100 million, 265-unit apartment tower across Broadway from Busch Stadium and start leasing by 2020, HDA said Thursday.

First, they will need to win approval from the St. Louis Preservation Board to tear down a six-story brick warehouse and office building constructed in the mid-1890s.

The structure currently houses the administrative offices of St. Louis Community College, which has said for months it plans to sell the building and move staff there to its campuses.

The city’s Cultural Resources staff says the building would be eligible to be added to the National Register of Historic Places, though it is currently only under review because it is within a preservation review district. It was designed by prominent St. Louis architect Isaac Taylor, who supervised the design and construction of major buildings in the 1904 World’s Fair and also designed the city’s former Municipal Courts building on Market Street.