Ecomus House, completed in 2004 in Yayoigaoka, Tosu City, Saga Prefecture, represents a thoughtful exploration of sustainable residential design by renowned architect Riken Yamamoto. This residential project exemplifies Yamamoto's commitment to creating harmonious living spaces that balance environmental consciousness with contemporary architectural principles. The design demonstrates innovative approaches to material selection and spatial planning, reflecting early 2000s sustainability concerns. Ecomus House stands as a significant example of how ecological awareness can be integrated into domestic architecture, offering valuable insights for those interested in green building design and residential innovation.