Kokubunji Nishi-machi House is a residential project completed in 1981 in Kokubunji, Tokyo, designed by Workshop. This house represents an important example of Japanese residential architecture from the early 1980s, a period marked by innovative approaches to domestic space. The design reflects the architect's distinctive philosophy regarding the relationship between interior and exterior environments. With its thoughtful spatial composition and careful attention to material expression, the house demonstrates Workshop's commitment to creating functional yet aesthetically refined living spaces. The residence continues to serve as a notable reference point for contemporary Japanese architecture.