Buro Happold Consulting Engineers, the U.S. subsidiary of an international engineering firm, has expanded its presence at 100 Bdwy. to just shy of 39,000 s/f, having signed a lease for the entire 14th floor, according to the firm's real estate advisor, international commercial real estate services firm Studley. The firm opened its first U.S. office of FTL-Happold in New York in 1992 to produce designs for lightweight fabric structures. In the late 1990s increasing demand to provide structural and MEP solutions for a wider range of building types and design challenges resulted in the establishment of Buro Happold in New York. "Buro Happold moved to 100 Bdwy. in January 2006, when it leased the top two floors of the building, 23 and 24. In less than two years the firm has grown its business in the United States to such a degree that it needed an additional floor," said, Allyson Bowen, Studley assistant director, who along with executive managing director Howard Nottingham represented the tenant. Some of the firm's most notable projects in the U.S. include: the Kogod Courtyard at the Smithsonian American Art Museum and National Portrait Gallery and the United States Institute of Peace both in Washington, D.C.; Crystal Bridges Museum of American Art in Bentonville, Arkansas; the Harvard Allston Science Complex in Cambridge, Massachusetts; and the Experimental Media and Performing Arts Center at Rennselaer Polytechnic Institute (RPI) in Troy, New York. In 2006, Buro Happold moved from 105 Chambers Street to 100 Broadway. Bowen, said, "The firm wanted to stay Downtown and found the two top floors at 100 Broadway, with its sweeping views and wrap-around terrace, and the building itself possessed design elements to effectively convey the firm's culture." The landlord was represented by Ed Goldman and Scott Slopes of CB Richard Ellis.