Fine line: From June 28 to July 2, the city brings together more than 10,000 architects from around the world under the theme of architectures for a planet in transition.

Barcelona world capital of architecture in 2026 has set date, scale and agenda. The city receives the World Congress of Architects of the UIA from June 28 to July 2, under the theme “Becoming, architectures for a planet in transition”.

The edition brings together more than 10,000 participants and about 250 speakers from more than 130 countries. The program will have eight stages, over 100 sessions, an exhibition of 4,000 square meters and about 70 itineraries.

By hosting the event, Barcelona received from UNESCO the designation "World Architecture Capital 2026". The chancellor extends the cultural weight of a city that already occupies a central place in European urban history.

The organization presents the congress in uia2026bcn.org, with programming, locations and information for participants. The main agenda is concentrated between June 29 and July 1, on six thematic lines.

The biggest meeting of the world architecture

The World Architects Congress of the UIA is one of the main events of the profession. The UIA was founded in 1948 in Lausanne, Switzerland, based in Paris and is recognized by UN agencies as a global architectural body.

The Barcelona edition will have a rare scale. More than 130 countries will be represented in a program that combines debates, exhibitions, itineraries, professional meetings and activities in the city's cultural spaces.

Barcelona also records an institutional achievement. You'll be the first city to host the convention twice. The previous edition took place in 1996, at another decisive moment in the international affirmation of Catalan capital.

Thirty years later, the agenda changed. The city returns to the center of global architecture with climate, transition, housing, territory and collective future.

Barcelona world capital of architecture and the theme of transition

The theme “Becoming, architectures for a transition planet” guides the 2026 edition. The formulation avoids a closed reading of architecture and proposes the project as a process, adaptation and responsibility.

The healing team consists of Pau Bajet, Maria Giramé, Tomeu Ramis, Mariona Benedito, Pau Sarquella and Carmen Torres. The group structures the programming in axes that deal with the ongoing transformation in cities and ways of inhabiting.

The focus combines architectural culture and practical urgency. The congress scale allows us to cross experiences from different continents, without reducing the discussion to a unique aesthetic or a universal solution.

For the public of luxury and culture, interest lies in the new role of architecture. The value of a building depends less and less on isolated impact and increasingly on context, permanence, use and material intelligence.

The city as stage, from Les Tres Xemeneies to the Holy Family

The programming occupies the Mediterranean edge and cultural equipment of different scales. Among the spaces are Les Tres Xemeneies, the Barcelona International Convention Centre, the Dissiny Hub, Montjuïc Castle and the Holy Family.

Les Tres Xemeneies has a symbolic role. The former 1970s thermoelectric is considered one of the most emblematic post-industrial sites in the metropolitan area. The complex will be used at a time of urban and cultural transition.

The space had already been partially reactivated in 2024, when it received activities from Manifesta 15. At the congress, it houses main exhibition, international workshop and Open Forum sessions, according to the organization.

Disseny Hub em Barcelona, espaço do Congresso Mundial de Arquitetos da UIA 2026
Dissiny Hub, Barcelona, Credit Lourdes Jansana

Dissony Hub reinforces another layer of the city. Located in the Glòries area, it serves as a reference institution for design and creative culture. Its presence connects architecture, urban design and contemporary cultural production.

Why Barcelona is the World Capital of Architecture 2026

The UNESCO designation stems from the fact that Barcelona hosted the congress. Still, the choice finds fertile ground. The city is a recognized urban laboratory with historical heritage, public space culture and architectural debate tradition.

The 2026 edition turns this condition into a program. Some 70 architectural itineraries throughout the region should take participants beyond the conference rooms. The city becomes document, method and field of reading.

This approach interests the high standard real estate market. Urban luxury observes mobility, landscape, heritage, public design and quality of life.

Other readings about design, heritage and urban culture are in the coverage of Architecture & Design and in the Architecture Begold Journal.

The voices present

The program will bring together about 250 speakers. The multistage format broadens the scope of the congress and allows sessions with different debate scales, from professional practice to critical research.

The work of Smiljan Radić, the latest winner of the Pritzker, will be discussed in the closing sessions. The presence of the Chilean architect brings the congress closer to the discussion on fragility, materiality and cultural memory.

Barcelona arrives in 2026 with an agenda that does not fit in tourist window. The convention puts the city before its own challenges.