The Rockefeller Group is a global private company based in New York City, primarily involved in real estate operations in the United States. The City of New York It is fully owned by Mitsubishi Estate Co. ( is a Japanese corporation It is one of the core Mitsubishi companies Ltd. For 70 years, the Group has initiated some of the biggest projects in commercial real estate in the US, beginning with the development of one of the world’s major complexes in Rockefeller Center. Rockefeller Center is a complex of 19 commercial buildings covering 22 acres between 48th and 51st streets in New York City.
After building the original 6,000,000-square-foot (560,000 m²), Art Deco complex from 1931 into the 1940s (the company name was then the Metropolitan Square Corporation), employing nearly 75,000 workers, the real estate company developed several towers in the immediate vicinity from the late 1940s into the 1950s and '60s. Art Deco was a popular international design movement from 1925 until 1939 affecting the decorative arts such as Architecture, Interior design, and Industrial It entered into a partnership with Time-Life and constructed a 48-story building for the company that opened in 1959; this spearheaded the expansion of the Center to the west of 6th Avenue, Avenue of the Americas. The Time-Life company was founded by Time Incorporated in 1961 as a book marketing division Sixth Avenue is a major Avenue in New York City 's borough of Manhattan.
By the early 1970s, they had added a total of four International Style towers to Rockefeller Center, more than doubling the size of the original complex. The International style was a major Architectural style of the 1920s and 1930s
In 2003, they formed a joint venture with CommonWealth Partners, LLC to manage large real estate properties in the United States.
Today, the Group maintains an ownership/management position in the 7,700,000 square feet (715,000 m²) of premier office space that makes up Rockefeller Center’s western corridor (the newer buildings). The eastern and original part of the Center is now owned by Tishman Speyer and the Crown family of Chicago. Tishman Speyer Properties is a leading Real estate building and operating company set up in 1978 by two founding partners Jerry Speyer and Robert Tishman