Itabashi Ward Youth Nature House Yatsugatake Villa is a public facility completed in 1982, located in Fujimi Town, Suwa District, Nagano Prefecture. Designed by architect Masashin Murata's architectural design office, this building serves as an educational retreat attached to a park. The structure exemplifies thoughtful integration of architecture with natural surroundings, providing an immersive experience for youth visitors. Built during the height of Japan's modernist institutional design, the villa reflects the era's commitment to blending functional spaces with environmental consciousness, making it a notable example of 1980s public facility architecture.