The UIA World Congress of Architects 2026, held in Barcelona, is a premier international event designed to foster architectural dialogue and innovation. Organized by the International Union of Architects (UIA) in collaboration with the Higher Council of the Orders of Architects of Spain and the Architects’ Association of Catalonia, this congress marks a significant milestone as Barcelona becomes the first city to host the event twice. With UNESCO designating it as the World Capital of Architecture 2026, the congress promises to be a vibrant gathering of architecture professionals, researchers, and thought leaders.

From June 28 to July 2, 2026, attendees will engage in a rich program featuring over 200 speakers, showcasing original design research and built prototypes through talks and debates. The event includes an international student competition, workshops, and a variety of exhibitions reflecting cutting-edge architectural work. Themed Becoming: Architectures for a Planet in Transition, this congress not only addresses contemporary ecological and social challenges but also explores Barcelona as an evolving urban laboratory for architectural investigations.