Ammonite-Inspired Spiral Shapes Pavilion for Expo 2025 Osaka
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The PASONA NATUREVERSE Pavilion, designed by the design labo Inc. for Expo 2025 Osaka, is conceived as a spiral structure inspired by the form of an ammonite. With a diameter of 43 meters, the pavilion establishes a spatial framework where themes of life, ecology, and the interconnection between humanity and nature are explored.
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The ammonite form serves as both architectural reference and symbolic gesture, linking the micro- and macro-scale dimensions of natural systems. Visitors are guided along a spiraling path that evokes continuity and cyclical movement, while the geometry reinforces the concept of humanity as part of a broader ecological context.
all images courtesy of the design labo Inc.
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design labo integrates sustainability with Cultural Context
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For the design labo studio, environmental performance is integral to the design. The pavilion employs a water-based cooling system in which a thin film flows across the roof surface, promoting evaporative cooling and reducing the need for air-conditioning. Rainwater, collected alongside the rooftop water, is reused within the building for non-potable functions, reducing reliance on external resources.
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Following the Expo, the pavilion is scheduled to be dismantled and reassembled on Awaji Island, a site recognized as one of Japan’s important ammonite fossil beds. This relocation extends the life of the structure and establishes a continuity between form, place, and geological history. Through its material strategy, environmental systems, and symbolic geometry, the PASONA NATUREVERSE Pavilion integrates sustainability with cultural and ecological reference, presenting architecture as a medium that bridges natural history and contemporary design practice.
the PASONA NATUREVERSE Pavilion stands as a 43-meter ammonite-inspired spiral
designed by the design labo Inc. for Expo 2025 Osaka
the spiral form guides visitors through cyclical pathways