Adjoining the Chimney Building were five other structures: a 20-story building at 74 Broadway, the 15-story Union Trust Building at 80 Broadway, and three other buildings of between 10 and 12 stories. The oldest of these was the Union Trust Building, which was erected in 1889 and had masonry walls because engineers of the time did not know how much steel the building required. One of the twelve-story structures surrounded the Chimney Building, and in 1926, this structure and the Chimney Building were sold to a syndicate of bankers.