Innovative Learning Architecture at Koganei’s Welcome Center by VUILD

The Learning Architecture for Learners Welcome Center, designed by VUILD Inc., is a cutting-edge cultural and educational pavilion located in Koganei, Japan. Completed in 2023, this 295 m² facility serves as a hub for collaborative learning under Tokyo Gakugei University’s Educational Incubation Center ‘Explayground’, promoting synergy between industry, government, and academia.

Pioneering Concrete and CLT Construction

The structure employs an unprecedented construction method in Japan, combining reinforced concrete with CLT (Cross-Laminated Timber) panels as formwork. Using CNC-machined wooden beams and panels, the concrete slab retains the residual formwork as the finished surface, merging aesthetic and structural innovation.

A geometric algorithm generated a precise CAD model, which was translated into a 5-axis CNC machining path by VUILD’s parametric team. All components were pre-cut in VUILD’s in-house factory, ensuring precision, efficiency, and cost reduction. The CNC machine used for fabrication is permanently installed in the pavilion, allowing visitors to experience advanced digital manufacturing firsthand.

Open, Adaptive, and Experimental Learning Spaces

VUILD’s design challenge was to create a flexible, open environment suitable for next-generation public education. The pavilion functions as an expandable, unfinished space, where architecture itself becomes a learning tool.

To achieve this, VUILD constructed a large-span versatile shell using CLT beams shaped with sine curves, layered in a zigzag pattern that mimics leaf veins in nature. These beams span 25 meters, supporting an 8 cm thick concrete slab, achieving structural integrity with minimal material usage. This innovative unit construction method—patented as JP 2021-042568—reduces costs by 40% compared to traditional shell construction.

Integration of Parametric Design and Structural Optimization

The pavilion leverages parametric design to streamline the workflow. Three-dimensional data was shared with structural engineers for rapid analysis and error reduction. The CAD and CAM integration enabled precise panel placement, thickness optimization, and free-form surface generation, resulting in 360 machined CLT panels forming a 963-part formwork.

Different CLT panel thicknesses, ranging from 60 mm to 210 mm, were color-coded in 3D diagrams for efficient on-site assembly. This method not only enhances construction efficiency but also allows for structural and material optimization, making it a model of sustainable and digital fabrication in architecture.

A Hub for Learning and Innovation

The Welcome Center is more than an architectural landmark—it is a hands-on educational space. Visitors can observe and engage with CNC milling technology, exploring the intersection of architecture, digital fabrication, and collaborative learning. The pavilion embodies experimental, adaptive, and environmentally conscious design, setting a new standard for educational architecture in Japan and beyond.