Kōtō Alley is a notable mixed-use complex completed in 1978 in Nishinomiya, Hyogo Prefecture, designed by the renowned Ando Tadao Architect and Associates. This distinctive structure seamlessly integrates social educational facilities, residential spaces, and commercial establishments within a single architectural composition. The building exemplifies Ando's characteristic design philosophy, showcasing the interplay of geometric forms and spatial organization. Located in the Kōtōen district, Kōtō Alley represents an important example of late 1970s Japanese architecture that successfully balances functionality with aesthetic innovation, making it a significant reference point for those studying integrated urban development and contemporary architectural design during this period.