At the end of each edition of the Architecture Biennale, far from the public eye, tons of exhibition materials are transported across Venice in handcarts and boats. Only a small portion of these materials is reused. The main obstacles are the limited storage space in Venice and the high logistical costs—recurring challenges for circular architecture. As a result, most of the waste ends up in landfills or nearby recycling centers. But this scenario is beginning to change. In response to growing environmental concerns, architects are developing strategies to make reuse more viable. These efforts go beyond architectural and construction decisions—they also involve logistics and international trade.
Søren Pihlmann is the curator of the Danish Pavilion at the 2025 Venice Architecture Biennale. The exhibition, commissioned by the Danish Architecture Center, is titled Build of Site, and focuses on exploring sustainable architectural practices through the lens of reuse and resourcefulness. Pihlmann's proposal transforms the existing Danish Pavilion, located within a historic building complex in the Biennale's Giardini, into an active exhibition space for material experimentation. The installation highlights techniques that incorporate recycled and bio-based elements. The Pavilion offers visitors the opportunity to observe ongoing experimental processes, witnessing how building resources are creatively reimagined for new uses. In this on-site interview, ArchDaily editors spoke with the curator about the ideas behind the project and the challenges its execution represents.
Scaenae view render. Image Courtesy of David Chipperfield Architects
The preliminary design for the architectural restoration and functional redevelopment of the Roman Theatre was presented on Tuesday, April 8, 2025, at the Auditorium of the Santa Giulia Museum in Brescia. The project was developed by the Milan office of David Chipperfield Architects, commissioned by the Fondazione Brescia Musei in collaboration with the Municipality of Brescia and the Brescia Chamber of Commerce, Industry, Handicraft, and Agriculture. Chipperfield was tasked with identifying the essential architectural elements to guide future design phases, leading to the drafting of the Technical-Economic Feasibility Project (PFTE) and the final project, including the necessary authorizations. This initiative is financially supported by the Italian Chamber of Commerce under a 2019 ministerial decree prioritizing cultural heritage, especially where it enhances tourism.
A new architecture and design exhibition opened on April 11, 2025, at the Danish Architecture Center in Copenhagen. Titled Recycle!, it explores recycling and reuse as a new way of creating, living, and building within the urgent context of the current climate crisis. The exhibition goes beyond presenting recycling and reuse as necessities; instead, it frames them as positive cultural shifts taking root in the construction industry and society at large. One of the exhibition's goals is to highlight the importance of resource awareness by posing the question: How can we increase the conservation, reuse, and transformation of what we already have?
Fenix is a new museum in Rotterdam's City Harbour, dedicated to the collection of historic and contemporary objects that explore migration through art. It is located on the Katendrecht peninsula on the south bank of the River Maas, in a 100-year-old former warehouse recently renovated by MAD Architects and Bureau Polderman. This marks MAD Architects' first commission for a public cultural building in Europe. Recently completed, the building is set to open this Friday, May 16, showcasing three exhibitions: All Directions, featuring over 150 artworks and objects from the Fenix collections; The Family of Migrants, a photographic exhibition by Edward Steichen; and The Suitcase Labyrinth, an interactive installation made up of 2,000 donated suitcases.
The twentieth century marked a definitive shift in the realm of architecture, as the Modernist movement broke from traditional building styles and encouraged experimentation and innovation. With the help of new materials and technologies, these times represent a crucial moment in the history of architecture as both cities and building styles evolved at an unprecedented rate. The structures that stand testament to this day are, however, nearing the age of a hundred years old. Their stark design features are not always embraced by the public, while the functionalist principles often hinder the adaptability of their interior spaces. Given that they also often occupy central positions within the city, there is increasing pressure to demolish these structures and redevelop the area in its entirety.
Detail of the Garifuna Kiosk Network. Image Courtesy of 24 Grados Arquitectura
How can architecture restore relevance to forgotten places? What dialogues can emerge when buildings and landscapes are treated not as blank slates, but as layers of memory, identity, and potential? For the Honduran architecture firm 24 Grados, these questions shape an approach rooted in adaptation, reuse, and contextual design. Their projects range from the restoration of old Spanish plazas and cultural centers to interventions in natural parks and coastal villages in Honduras. Each one is grounded in the belief that design can reweave relationships between people, place, and heritage.
Officially open since April 13 as part of Expo 2025 Osaka, the German Pavilion, designed by LAVA Architects. brings to life the theme of the circular economy. Previously unveiled under the title "Wa! Doitsu" (translated as "Wow! Germany"), the Pavilion explores concepts around circularity, showcasing the "terminological culmination of the sustainability discussion." Focusing on returning all consumable goods to the cycle of the economy, achieving zero waste, and minimizing resource consumption, the theme is visible throughout the entire design.
Hungarian Architecture Center and Museum Design. Image Courtesy of BIVAK Studio
The Hungarian Architecture Center and Museum, designed by BIVAK Studio in collaboration with Tér és Forma Szeged Építéstervező Ltd., has received its building permit, paving the way for construction to begin. Located at the corner of Városligeti Fasor and Bajza Street in Budapest, Hungary, the project aims to establish a cultural and professional hub within an urban context. The proposal was selected as the winning entry in an international two-round open design competition, organized by the Hungarian Academy of Arts, held in December 2023.
In a context where sustainability and material identity are becoming priorities in architecture, some ancient materials are finding new life. Terrazzo, with origins dating back to the 15th century, stands out as an example of how tradition can fuel innovation. The modern form, as we know it today, emerged in 15th-century Venice, Italy, when Venetian mosaic workers, seeking to make use of marble scraps, began incorporating these irregular fragments into mortar to create durable and visually appealing surfaces for terraces around their homes. This approach not only minimized raw material waste but also led to the development of new surface-finishing techniques, evolving from manual stone rubbing to the use of a heavy, long-handled grinding stone known as a galera.
The OBEL Award is an international prize for architectural practice, presented annually by the Henrik Frode Obel Foundation. The jury, composed of representatives from firms such as Snøhetta and MVRDV, alongside professionals from other disciplines, selects a theme to guide the choice of winners for each edition. The goal is to steer proposals toward solutions that foster dialogue and generate knowledge on emerging issues, aiming to promote architecture in service of social and ecological development worldwide. For its seventh edition, the 2025 call focus is Ready Made, targeting projects that place reuse and repurposing at the core of architecture for the common good.
HouseEurope! is the European Citizens' Initiative advocating for EU legislation to simplify, reduce the cost of, and make more socially equitable the renovation and reuse of existing buildings, has officially begun its signature gathering period. The initiative aims to curb demolition driven by speculation and foster a construction industry that prioritizes the potential of existing public and private buildings. As a tool of direct democracy, European Citizens' Initiatives allow citizens to propose legislation at the EU level. For the legislation to be officially considered and implemented by the European Commission and EU member states, it requires the support of 1 million European citizens from at least seven EU countries. The initiative opened for signatures on February 1st, 2025 and will remain open until January 31st, 2026.
From the field of architecture and construction, the concept of material reuse is closely tied to circular economy and the reduction of carbon footprints, paving the way toward a more sustainable and responsible future. By incorporating recycling practices, recovery, restoration, and/or the reuse of demolition materials, resource efficiency along with the reduction of energy consumption makes it feasible to experiment with techniques, applications, and new materials that honor the memory of spaces while also bringing new life to both interiors and exteriors.
Why demolish when you can embellish? A collaboration between ArchDaily and ICEX highlights the most outstanding remodeling, reuse, extension and renovation works recently built in Spain. This competition focuses on how Spanish architecture values the revitalization of historic buildings and centers, and recovers existing structures promoting a more balanced urban development. In Spain, old casonas become boutique gems, and factories like Madrid's Matadero morph into cultural havens—a clever mix of tradition and modern flair. After all, good design isn't built—it's built upon.
Architectural grafting, a concept recently popularized by Jeanne Gang inThe Art of Architectural Grafting, presents a transformative approach to urban regeneration and sustainability. Drawing inspiration from botanical and horticultural practices — where new growth is added to existing plants for enhanced resilience — this architectural method integrates new structures with existing ones, allowing them to coexist and adapt. Rather than pursuing demolition, grafting prioritizes adaptation, extending the life of buildings while safeguarding their cultural and historical significance.
While Studio Gang has played a pivotal role in advancing this method, architectural grafting embodies a broader principle that architects have long used to enhance sustainability, conserve resources, and honor heritage. Across scales — from individual buildings to urban landscapes —grafting reshapes the relationship between past and present, adapting existing structures for contemporary needs while addressing environmental demands. By reimagining historic buildings for modern use, this approach fosters a sustainable evolution of cityscapes.
