One South Wacker

One South Wacker is an office tower in Chicago's financial district rising 40 stories with a height of approximately 550 feet. The structure features a glass and steel exterior with a modern geometric design characteristic of commercial buildings from its era.

The office tower was designed by Murphy/Jahn Architects and constructed between 1979 and 1982. Its completion contributed to Chicago's modern architectural landscape during a period of significant downtown development.

The building gained visibility through appearances in contemporary media and became an identifiable landmark within the city's skyline. Its distinctive silhouette and position in the financial core have made it a reference point that locals and visitors recognize.

The building is easily accessible and features interior amenities including a fitness center and multiple lounge spaces. Visitors should note that as an active office building, access to certain areas may be restricted during business hours.

A distinctive feature is the outdoor Meridian deck offering views of Wacker Drive through floor-to-ceiling glass panels. The space is arranged with multiple seating options where visitors can pause and observe the street activity below.