NEW YORK CITY — JLL has negotiated the $50 million sale of a waterfront development site in the South Williamsburg neighborhood of Brooklyn. Located at 500 Kent Ave., the nearly three-acre site carries up to 230,500 buildable square feet. The property is located in a M3-1 zoning district, which allows for the development site to be designated for retail, office, light manufacturing or mixed-use. The lot is adjacent to the Brooklyn Navy Yard and the Brooklyn tech triangle. JLL represented the seller, Con Edison, in the transaction. The buyer was undisclosed.