House & Atelier One is a residential and office building completed in 2005, located in Shinjuku, Tokyo. Designed by Atelier One, this structure exemplifies contemporary Japanese architecture with its thoughtful integration of living and working spaces. The building showcases innovative design principles that balance functional requirements with aesthetic considerations. Serving as both a private residence and professional workspace, House & Atelier One demonstrates how modern architecture can seamlessly merge domestic comfort with creative productivity, making it a notable example of early 2000s Japanese residential design for architecture enthusiasts.