Architectural Cases

UIA 2026 Barcelona: Shaping the Future of Architecture Through Collective Inquiry

The UIA World Congress of Architects 2026 in Barcelona served as a pivotal gathering for visionaries, thinkers, and practitioners in the field of architecture. Under the overarching theme of "Becoming. Architectures for a Planet in Transition," the congress underscored a paradigm shift: the future of built environments hinges not on rigid solutions, but on architecture's capacity for constant evolution, adaptability, and a collective questioning of traditional methods. This article delves into the core insights gleaned from the congress, highlighting the crucial role of interdisciplinary dialogue, research, and collaborative efforts in shaping architectural practice for a dynamic future.

Shaping Tomorrow's Skylines: A Collaborative Vision for Architecture

The Imperative of Adaptation: Embracing Change in Architectural Practice

As the UIA World Congress of Architects 2026 concluded in Barcelona, a resounding message echoed across all discussions, exhibitions, and presentations: the evolution of architecture will increasingly rely on its readiness to embrace transformation and collectively challenge established norms, rather than on finding conclusive solutions. The theme "Becoming. Architectures for a Planet in Transition" framed architecture as a dynamic discipline, continually reshaped by diverse viewpoints, extensive research, and cooperative endeavors.

Addressing Complex Challenges Through Collaborative Design

Critical issues such as housing shortages, excessive resource consumption, climate change adaptation, and public health concerns were identified as intertwined problems that cannot be resolved by any single discipline, project, or organization in isolation. Consequently, many deliberations centered on viewing existing buildings as valuable communal assets. Renovation, repurposing, and adaptive reuse emerged as key strategies for reimagining how architecture can effectively respond to shifting environmental and societal demands.

VELUX's Re:Living Framework: A Holistic Approach to Renovation

These dialogues provided the context for the unveiling of Re:Living, a comprehensive renovation framework introduced by the VELUX Group during the Congress. Grounded in the insights from their Green Paper, "The Housing We Need for the Future We Want," Re:Living investigates how building revitalization can transition from isolated projects to a more systematic and scalable methodology, prioritizing well-being, economic accessibility, and environmental stewardship. Mirroring many of the Congress's discussions, both the Green Paper and Re:Living advocate for ongoing deliberation, practical application, and collaborative engagement.

Rethinking Existing Buildings as Future Residential Solutions

Across Europe, the demand for residential spaces continues to escalate, even as a significant portion of the current building stock remains underutilized, outdated, or energy-inefficient. The Green Paper reveals that roughly 85% of the buildings projected for use in Europe by 2050 are already standing, indicating a vast untapped potential within existing structures.

The Transformative Power of Renovation for European Housing

Developed in partnership with ARTELIA, BPIE, RISE, and No Objectives, the Green Paper meticulously analyzes how Europe's existing building infrastructure can address the multifaceted challenges of housing, climate, energy, and health. Drawing on extensive research into the EU's residential stock, it estimates that strategic renovation, adaptation, and more efficient use of current buildings could yield between 50 and 107 million additional homes. This approach would also significantly reduce the need for new land development, new materials, and associated carbon emissions.

A Call for Collective Action: Scaling Renovation Across Europe

Published as an open invitation to policymakers, researchers, the construction industry, and civil society, the Green Paper aims to stimulate widespread discourse on how to expand renovation initiatives across Europe. The Re:Living framework, developed in collaboration with DGJ Architektur and Transsolar, further elaborates on this research by offering a holistic four-stage process—Re:Think, Re:Scope, Re:Design, and Re:Cover—to translate these concepts into practical applications.

The Enduring Value of Dialogue in Architectural Advancement

This strong emphasis on open discourse resonated throughout the entire Congress, reinforcing the notion that architecture evolves through ongoing exchange rather than rigid certainty. Rather than offering universal answers, numerous sessions fostered interdisciplinary and multi-perspective debates on critical themes such as housing, climate, and urban transformation, all of which necessitate concerted, collective responses.

Exploring Architectural Practice Beyond New Construction

Several supplementary events held concurrently with the Congress exemplified this approach. During "Architects, not Architecture (AnA)," a global event series co-hosted by VELUX in Barcelona, prominent speakers like Winy Maas of MVRDV, Xu Tiantian of DnA_Design and Architecture, and Arno Brandlhuber of bplus.xyz (b+) and HouseEurope! redirected attention from completed projects to the formative experiences, influences, and conceptual ideas that underpin architectural practice. Despite their diverse perspectives, their discussions consistently converged on the opportunities inherent in existing buildings, emphasizing reuse, minimal intervention, and adaptive transformation as central architectural tenets. As Arno Brandlhuber succinctly put it, "You can be successful without building a building."

Nurturing Future Talent: The Light of Tomorrow Competition

The next generation of architects actively participated through the "Light of Tomorrow by VELUX" student competition, organized in close collaboration with the International Union of Architects (UIA). Eight finalist teams presented innovative proposals exploring the role of daylight in architecture to an international jury, with their projects undergoing live critique. The winning submission, "Sun the Quilt," by students from Xi'an University of Architecture and Technology, chosen from 539 daylight projects, vividly demonstrated how ordinary urban conditions can inspire novel architectural responses through the thoughtful integration of daylight, ventilation, and everyday domestic activities. Juror Níall McLaughlin praised the project, stating, "The architects have gone through a problem, gotten to the bottom of that problem, worked it through, and then made it into something that can live and thrive in the world."

Architecture as a Journey of Shared Discovery

Collectively, these initiatives mirrored a broader characteristic of this year's Congress. Whether through rigorous research, vibrant public debates, or imaginative student experimentation, architecture was consistently portrayed as a discipline that thrives on shared inquiry. The discussions surrounding circularity, housing, resource utilization, and existing buildings seldom concluded with definitive answers. Instead, they highlighted continuous processes of collaboration that extend far beyond the duration of the Congress itself. Beyond the formal agenda, the event and the "VELUX x Barcelona Exchange & Experience" fostered a dynamic environment for exchange among architects, students, researchers, industry leaders, and partners globally. This was achieved through engaging conversations, shared experiences, and immersive encounters with Barcelona's unique architectural landscape. The city itself became an inspiring backdrop for exploring how concepts of transformation, reuse, and healthier buildings can transition from theoretical discussion into tangible practic

Limmattal Cantonal School Expansion by PENZISBETTINI Architekten

The Limmattal Cantonal School has received significant new additions, designed by PENZISBETTINI Architekten, which considerably broaden its existing campus. These extensions thoughtfully incorporate an array of new facilities, including an auditorium, contemporary sports halls, specialized science classrooms, and an expansive canteen. This strategic development enhances the educational infrastructure, providing a comprehensive and modern learning environment for students.

The architectural vision for these new structures is characterized by a series of distinct volumes, conceptualized as 'pearls on a string.' This design approach ensures each new building maintains a unique identity while contributing to a cohesive overall aesthetic. The structures are carefully modulated in height, gradually stepping down towards the adjacent street, a deliberate choice that not only harmonizes with the surrounding urban fabric but also masterfully carves out a generous and inviting outdoor forecourt. This forecourt serves as a central gathering space, fostering a sense of community and openness within the expanded school grounds.

The expansion of the Limmattal Cantonal School by PENZISBETTINI Architekten stands as a testament to thoughtful and functional design in educational architecture. By integrating modern facilities with an aesthetic that respects its urban context, the project creates an inspiring and vibrant campus. This development not only provides enhanced learning spaces but also cultivates a positive and engaging environment, promoting excellence and well-being for all who utilize its facilities. Such innovative projects underscore the potential of architecture to shape future generations and uplift communities.

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FIFA World Cup Architecture: A Retrospective on 2026 and Foresight into 2030

The recent culmination of the 2026 FIFA World Cup, an unprecedented event in its scale, has brought to light an evolving paradigm in sports infrastructure. Hosted across Canada, Mexico, and the United States, this expanded tournament, featuring 48 national teams and 16 host cities, showcased a notable departure from previous editions. Rather than prioritizing new, iconic stadium constructions, the emphasis was placed on revitalizing and repurposing existing facilities, tailoring them to meet FIFA's exacting standards. This strategic shift underscores a growing awareness within sports architecture regarding the enduring performance of buildings, their capacity for adaptive reuse, and their seamless integration into broader urban frameworks.

The 2026 FIFA World Cup underscored a significant transition in sports architecture philosophy. Historically, World Cups have often spurred ambitious new constructions, creating signature stadiums and extensive urban developments. However, this recent tournament, hosted across Canada, Mexico, and the United States, saw a different approach. With an expanded format involving 48 national teams and 16 host cities, the organizers largely opted to utilize existing venues. These stadiums, predominantly built for American football or as multi-purpose arenas, underwent targeted modifications to meet FIFA's stringent technical and operational requirements. This involved upgrades to playing surfaces, seating arrangements, accessibility features, player facilities, media infrastructure, hospitality zones, and security systems. Notable examples include SoFi Stadium in California, known for its versatile design and integration within Hollywood Park, and Atlanta's Mercedes-Benz Stadium, which boasts a retractable roof and flexible programming. Mexico City's Estadio Azteca also received renovations, solidifying its status as the first stadium to host three FIFA World Cups. This strategy highlighted the potential for adaptability and long-term utility of existing structures, moving away from the often short-lived grandeur of newly built, single-use facilities.

As attention shifts to the 2030 FIFA World Cup, this evolving trend in architectural planning continues. The upcoming tournament promises an even more geographically dispersed hosting model, spanning Europe, Africa, and South America. Spain is set to host eleven venues, Morocco six, and Portugal three. Additionally, Uruguay, Argentina, and Paraguay will each host an opening match, commemorating the centenary of the inaugural 1930 World Cup in Uruguay. Preparations involve a mix of new constructions and significant redevelopments of existing stadiums. Projects like the proposed Hassan II Stadium near Casablanca, designed by Oualalou + Choi in collaboration with Populous, exemplify this. Intended to be one of the world's largest football stadiums with a capacity for 115,000 spectators, its design draws inspiration from traditional Moroccan tents and integrates into regional infrastructure initiatives. Other Moroccan stadiums, including Prince Moulay Abdellah Stadium in Rabat, are undergoing extensive modernizations, focusing on increased capacity, new roof structures, facade renovations, and improved spectator proximity to the field. Similarly, Spain's Santiago Bernabéu and Camp Nou are undergoing major transformations, alongside renovations in Seville and Gran Canaria to enhance facilities and extend operational lifespans. Portugal's Estádio da Luz and Estádio José Alvalade are also being modernized with an emphasis on flexibility, spectator experience, and integration with urban regeneration plans.

The distributed nature of the 2030 tournament, integrating historical sites, modernized venues, and new developments across diverse urban landscapes, represents a significant evolution in sports architecture. This approach emphasizes the creation of flexible, multi-functional infrastructures that serve communities beyond major sporting events. Recent global stadium projects, such as BIG's multi-use stadium concept for Shakira's World Tour in Madrid and the expansive Sardar Vallabhbhai Patel Sports Enclave in Ahmedabad, further exemplify this movement towards comprehensive sports districts that blend competitive venues with public green spaces and community amenities. This forward-thinking design philosophy ensures that the architectural legacy of these grand events is both sustainable and beneficial for host cities in the long run.

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