The UIA 2026, the 29th edition of the triennial international event for architectural dialogue organised by the International Union of Architects, has opened its doors on Sunday, June 28th, with an inaugural event held at Three Chimneys, a former power plant in Sant Adrià de Besòs. Each Congress focuses on a pressing topic relevant to the profession, articulated through a central theme. The topic for 2026 is "Becoming. Architectures for a Planet in Transition," calling for a broad and critical overview of the possible futures of architecture. The event runs through July 2, 2026, as a distributed event across multiple venues and urban contexts. With a multidisciplinary approach, Barcelona, the UNESCO World Capital of Architecture 2026, is set to become a global laboratory and hub for debating forthcoming ecological, social, material, and cultural transitions.
Three decades after it first hosted the event, Barcelona once again becomes the host of the global disciplinary debate. The UIA World Congress of Architects 2026 Barcelona aims to bring together 10,000 professionals, students, and institutional representatives from more than 130 countries. Discussions address topics such as the climate emergency, the housing crisis, the circularity and sustainability of materials, and the evolution of public space at large and small scales, as well as more specific topics such as the future role and responsibility of architectural awards or conferences dedicated to the DANA floods in Valencia. The daily program will be marked by two plenary sessions each day, at the start (09:00) and at the end (16:45).
