The Double Helix House, completed in 2011, is a remarkable residential project located in Tokyo designed by architects Onishi Asaki and Momota Yuki of O+H. This innovative home exemplifies contemporary Japanese residential design through its unique spatial organization based on the mathematical concept of a double helix. The architects skillfully integrated this geometric form to create dynamic interior spaces that flow seamlessly while maximizing limited urban land. The design demonstrates how abstract geometric principles can be translated into functional, livable architecture that challenges conventional housing typologies and offers residents an engaging, spatially complex living environment.