Bay Square Yokosuka is a landmark mixed-use complex completed in 1993 in Yokosuka, Kanagawa Prefecture. Designed by renowned architect Kenzo Tange, this sophisticated urban development seamlessly integrates residential apartments, transportation facilities, office spaces, commercial establishments, and a theater hall. The project exemplifies Tange's visionary approach to contemporary urban design, combining functional efficiency with aesthetic sophistication. Situated in the heart of Yokosuka's central district, Bay Square represents a significant contribution to the city's architectural landscape and urban revitalization during the 1990s. The building showcases Tange's characteristic design philosophy of harmonizing diverse urban functions within a cohesive architectural framework.