20 South Clark is a 31-story, multi-tenant office building situated on a 0.49 acre site. Located within a city block delineated by Monroe on the south, and Clark Street on the east within Chicago's central business district in the Central Loop submarket, the Property is within a five-minute walk to all CTA elevated and subway train lines and 10-minute walk to Metra commuter train stations. The property was designed by Ludwig Mies van de Rohe, who highlighted the international style with a steel and glass curtain wall exterior. The building is LEED Certified Gold.