Spherical spheres at Expo 2025 in the Swiss pavilion
Sphärische Kugeln werden auf der Expo 2025 den Schweizer Pavillon «LA SUISSE ENCHANTÉE» bilden und ein Beispiel nachhaltiger Architektur darstellen. Mit viel Expo-Erfahrung und innovativen Ideen realisiert NÜSSLI mit Manuel Herz Architekten und BELLPRAT PARTNER den geplant leichtesten Pavillon der Expo im Auftrag von Präsenz Schweiz.
From April 13 to October 13, 2025, the next World Expo will take place in Osaka, Japan. Under the motto “Designing Future Society for Our Lives”, Switzerland will present itself as an efficient and leading innovation hub and will show concrete examples from business, science and research. Nüssli, together with Manuel Herz Architekten and Bellprat Partner, won the tender for the design, construction and dismantling of the Swiss presence and is implementing the pavilion in lightweight construction and with a touch of magic. The team is completed by Robin Winogrond Landscape Architects, Studio AA-Morf, and Kyoto Design Lab.
Swiss ideas, experience and know-how in Japan
“We are very proud to continue our long tradition as implementation partner of the Swiss Pavilion at Expo 2025 in Osaka. Despite this long Expo experience, however, the Swiss Pavilion with its pneumatic, spherical construction will also provide us with some sticking points,” says Andy Böckli. Stefan Sekiguchi adds: “To successfully realize the architectural design together with Japanese service providers and according to the applicable guidelines in Japan requires getting to know the country and its people. That’s why we work with our local partner and can benefit from valuable knowledge.” Arnau Bellprat is looking forward to the challenges in the global environment. “In our Spheres, visitors should be able to immerse themselves in an immersive, narrative and fantastic world. They should have a sensory and emotional experience that they will remember for a long time – we call it a biographical note.” Architect Manuel Herz is particularly interested in pneumatic construction, which allows for a building of minimal weight and has a long tradition for pavilions at World’s Fairs. “We are taking an architecture that has been used before for iconic Expo buildings and reinterpreting it.”
Pavilion embedded in nature
The concept for the Swiss pavilion focuses on sustainability. Spheres and modular structures made of recycled recyclable materials, as well as plants that overgrow, enclose and sequesterCO2 from the building, make up the single-story barrier-free architecture and contribute to a minimal ecological footprint. The scenography takes up the light exterior appearance of the building and stages the contents in the exhibition with light and color. In the five spheres of the pavilion, visitors experience how Swiss innovation is created from the nutrients of nature as well as with Switzerland’s humanistic tradition and a little magic. They can help shape, explore and ultimately take Swiss innovation out into the world in the form of plant seeds. In the pavilion, they will also meet the mythical figure of Heidi, who acts as a link to the host country, Japan. The care and preservation of nature are also important common concerns that link Japan and Switzerland.
Cooperation and local support
The topic of sustainability is taken seriously in the Swiss Pavilion and carefully implemented with academic support. With researchers, lecturers and students from the Kyoto Institute of Technology – in particular with the KIT Design Lab of the Faculty of Architecture – the social, economic and ecological footprint of the appearance is to be analyzed and improved over its entire lifespan.