Jahn/

With 60 years of experience, Jahn is an international architectural practice specializing in commercial, multifamily residential, government, institutional, and transportation sectors. The Chicago-based firm honors the design excellence championed by its late eponymous leader Helmut Jahn (1940 – 2021) and the collaboration of the doers, darers, and designers that have long been at the heart of the firm’s success. Led by President Evan Jahn and Managing Directors Philip Castillo, FAIA, Steven Cook, FAIA, and Scott Seyer, AIA, LEED AP, Jahn unites the client’s desire to achieve a distinctive architectural identity with disciplined technical expertise, a commitment to responsible design, and constant principal involvement.
Jahn is the architect of notable and award-winning projects across four continents, including 50 West Street in Manhattan; the Joe and Rika Mansueto Library at the University of Chicago; Suvarnabhumi Airport terminal in Bangkok; the Bayer Headquarters in Leverkusen; Japan Post building in Tokyo; VEER Towers in Las Vegas; and the Sony Center in Berlin.