The Qube stands on the site of Detroit's first skyscraper, the Hammond Building. The ground floor of this building is a massive 1.5-story glass sheathed, banking hall. The building was known as 'Chase Tower' from 2006 to 2011 to reflect Chase Bank's buyout of Bank One. In March 2007, the Sterling Group purchased the tower from JP Morgan Chase. Occupancy was approximately 50 percent at the time of sale. The building has had 3 official names now, for each of the 3 successive banks that have owned it: National Bank of Detroit (NBD), succeeded by Bank One, and lastly Chase.