The Kagawa Toyohiko Memorial Matsuzawa Library and Matsuzawa Kindergarten, completed in 1981, stands as a significant architectural achievement in Setagaya, Tokyo. Designed by Kin Abe of Artech Architectural Research Institute, this facility uniquely combines educational and commemorative functions. The building honors the legacy of social reformer Kagawa Toyohiko while serving as an active kindergarten. Its thoughtful design reflects the architectural principles of the early 1980s, creating a harmonious space that supports both scholarly research and childhood development. The structure exemplifies how institutional buildings can meaningfully preserve historical memory while fulfilling contemporary educational needs.