Waseda University Building No. 11 is an educational facility completed in 2009, located in Shinjuku Ward, Tokyo. Designed by the renowned architectural firm Yamashita Sekkei, this structure serves as a comprehensive educational complex housing elementary, junior high, and senior high school divisions. The building exemplifies contemporary Japanese educational architecture, integrating functional design principles with practical learning environments. Its completion marked a significant addition to Waseda's campus infrastructure, reflecting the institution's commitment to modernizing its facilities. The project demonstrates Yamashita Sekkei's expertise in creating multi-purpose educational spaces that accommodate diverse age groups and academic requirements within a cohesive architectural framework.