The Renaissance Center, commonly known as the RenCen, is a complex of seven connected skyscrapers in downtown Detroit, Michigan, United States. Located on the Detroit International Riverfront, the RenCen is owned and used by General Motors as its world headquarters. The complex includes a 73-story Marriott hotel at its center, surrounded by four 39-story office towers, connected by a large square podium containing public spaces, a conference center, retail stores, restaurants, and a company showroom.
Developed as an urban renewal project in the 1970s, the Renaissance Center was envisioned as a "city-within-a-city," and was meant to anchor a wider redevelopment of the then-declining city of Detroit. The project was developed and funded by a consortium led by the Ford Motor Company, and John Portman served as its principal architect. The five original towers were built in the Modern architectural style and completed in 1977, with two matching towers added later in 1981.
