The Renton, Wash. property contains 855,000 sq. ft. of office space. : (Bloomberg)—Boeing Co. is weighing whether to jettison the Seattle-area headquarters of its commercial-airplane division as it cuts costs and stockpiles cash. A sale of the Longacres industrial park would also include an adjacent building once used to train airline pilots. Boeing converted the wooded suburban campus from a horse-racing track in the 1990s, and the property has 855,000 square-feet (79,400 square-meters) of office space. The buildings are in Renton, Washington, separated by a hill from Boeing’s 737 factory.