ISAK Kamiyama Academic Center + Residence 4 stands as a remarkable educational facility nestled in Karuizawa, Nagano Prefecture. Completed in 2016, this project by architects Kazuhiro Kojima and Yoshiko Akamatsu of CAT seamlessly integrates academic spaces with residential facilities for an international boarding school environment. The design thoughtfully addresses the unique demands of combining classroom buildings with student dormitories, creating a cohesive campus community. The architecture reflects contemporary design principles while harmonizing with the natural mountain landscape, offering both functional learning environments and comfortable living quarters for students.