Cadillac Place, formerly the General Motors Building, is a landmark high-rise office complex located at 3044 West Grand Boulevard in the New Center area of Detroit, Michigan. It was renamed for the French founder of Detroit, Antoine Laumet de La Mothe, sieur de Cadillac. It is a National Historic Landmark in Michigan, listed in 1985. History General Motors Building After much pressure by the General Motors Board of Directors, William C. Durant agreed in 1919 to construct a permanent headquarters in Detroit for the company he formed in 1908. The corporation purchased the block between Cass and Second on West Grand Boulevard and removed the 48 structures from the site to begin work. Groundbreaking was held June 2, 1919 and the Cass Avenue wing was ready for occupancy in November 1920 while the remainder of the building was under construction. The building was originally named for Durant, but an internal power struggle led to his ouster in 1921 and the structure was renamed the General Motors Building. However, the initial "D" had already been carved above the main entrance and in several other places on the building where they remain today. The structure was completed in 1922, and served as General Motors world headquarters from 1923 until 2001. It is approximately 2 miles to the southwest of Detroit/Hamtramck Assembly, where Cadillacs are currently built. New Center Development In 2001, GM moved the last of its employees into the Renaissance Center on the Detroit River. In 1999, General Motors transferred the property to New Center Development, Inc., a non-profit venture controlled by TrizecHahn Office Properties which acted as developer and began renovation on the upper floors which GM vacated in 2000. The Annex was constructed shortly after the main building, and in the 1940s, it was connected to the adjacent Argonaut Building with a pedestrian bridge on the fourth floor. A parking structure was constructed to the east across Cass Avenue and also connected with a pedestrian bridge. A third bridge was constructed across Grand Boulevard in the early 1980s, to connect the building with New Center One and the St. Regis Hotel. Government of Michigan—Cadillac Place The building now houses several Government of Michigan agencies, originally, under a 20-year lease agreement approved in 1998. At the end of the lease, the State had the option to purchase the structure for $1. In 2011 the Michigan Economic Development Corporation (State of