Located within Chicago’s North Loop, where the city’s most important rail and pedestrian networks intersect, 181 North Clark Street completes the triangular plaza formed by the State of Illinois office building and the City Hall County Building.
The building’s base is scaled to these two low-rise structures, while the twin towers take their height from the Daley Center to the south. The office towers are composite in form: a masonry-and-glass liner wraps around a slender metal-and-glass shaft. The two forms are held together by bundled, open corners. The shafts rise above the rest of the structure, each culminating in three open pylons that are lit at night.
Below, three canopies swing out from the building to mark the tower’s entrances. At the center of the complex, a curving canopy identifies a separate approach to a rotunda and a public galleria.