According to Cushman & Wakefield, (C&W) Macquarie Group has signed a 260,000 s/f lease renewal and expansion at 125 West 55th St. The financial services firm will renew its current space and expand by 160,000 s/f. In addition to the current 100,000 s/f it occupies, Macquarie Group signed a lease for an additional six floors, as well as portions of the eighth and ground floors. C&W brokerage professionals Josh Kuriloff and Robert Tanzmann represented Macquarie Group in its site search and in lease negotiations with the building's ownership, Boston Properties. Andrew Levin, senior vice president of Boston Properties' New York Region, represented the owner. Built in 1989 by architect Edward Larrabee Barnes & Associates, 125 West 55th St. is a 23-story tower totaling 590,000 s/f. In addition to Macquarie Group, major office tenants include Katz Media Group and Air France. A joint venture in which Boston Properties owns a majority interest acquired the building in August. Macquarie Group is a diversified international provider of banking, financial, advisory and investment services. Established in Australia in 1969, Macquarie Group now operates in all major financial centers around the world. The firm is headquartered in Sydney and employs more than 13,800 people in 25 countries.