High Quality Content by WIKIPEDIA articles! The Leo Burnett Building, located on 35 West Wacker Drive at North Dearborn Street in the Chicago Loop, is a 46 story, 635 foot (193 m) tall skyscraper above the Chicago River`s west bank. When built in 1989, it was the 12th tallest structure in Chicago. It was designed by Kevin Roche-John Dinkeloo and Associates and Shaw Associates. It is a postmodern design made with granite, masonry, glass, steel and concrete. The windows are divided by stainless steel bars, which is typical of "Chicago windows."