NEW YORK CITY — Cushman & Wakefield has arranged the sale of 151 Eighth Ave., a five-story mixed-use building in Manhattan’s Chelsea neighborhood, for $18.3 million. Brock Emmetsberger, Billy Simons and Rachel Aschendorf of Cushman & Wakefield represented the undisclosed seller in the transaction. The buyer was a partnership made up of Stone Street Properties and Greenwich Village Capital. The 15,260-square-foot building contains 16 residential units, two retail units and one cell tower. Of the 16 apartments, 11 are free market, four are rent stabilized and one is rent controlled. The building is located in close proximity to retail and dining options that include Chelsea Market and Barneys New York.