Clark Adams Building, Neoclassical skyscraper in Downtown Chicago, United States.

The Clark Adams Building is a Neoclassical skyscraper in Downtown Chicago that rises 41 stories with a stone base and brick upper sections. Classical architectural elements such as symmetrical window arrangements and decorative moldings frame its exterior walls throughout.

Construction began in 1926 and was completed in 1927 to designs by the Burnham Brothers, the firm also responsible for the Carbide and Carbon Building. The 41-storey, 476-foot tower went up on West Adams Street as a speculative office block of the 1920s downtown boom. In July 2023 its owners filed for Chapter 11 bankruptcy, and by August 2026 the building was being converted into 400 apartments.

The building displays the Neoclassical style that defined Chicago's business districts during the 1920s. Its symmetrical facade with decorative details represents how classical design was applied to modern commercial structures of that era.

The Clark Adams Building stands at 105 West Adams Street, at a street corner in the Loop. Club Quarters leases about a quarter of the building, and retail tenants such as Starbucks, Native Foods and Elephant & Castle occupy ground-level space. The owners filed for Chapter 11 bankruptcy on July 31, 2023, and as of August 2026 the building is being converted into 400 apartments, so expect construction activity.

The Burnham Brothers, who also designed the Carbide and Carbon Building, completed this 476-foot, 41-floor tower in 1927. Since July 31, 2023, its owners have been in Chapter 11 bankruptcy, and as of August 2026 the building is being converted into 400 apartments. A quarter of the space is leased to Club Quarters.