NEW YORK CITY — TerraCRG has arranged the sale of a development site located at 52-56 Ainslie St. in Brooklyn’s Williamsburg neighborhood. An undisclosed buyer acquired the 4,950-square-foot site for $5.1 million. The site offers mixed zoning, allowing for a development project ranging in size from 13,365 square feet to 17,820 square feet depending on use. Ofer Cohen, Dan Marks, Matt Trotter, Peter Matheos and David Algarin of TerraCRG brokered the transaction. The name of the seller was not released.