The historic Morris-Jumel Mansion in New York City.SeanPavonePhoto/Getty Images Built in 1765, Morris-Jumel Mansion is the oldest surviving residence in Manhattan. George Washington spent time there during the Revolutionary War, and Aaron Burr married its owner. I visited the mansion, now a restored museum, and felt like I stepped back in time. Morris-Jumel Mansion is the oldest surviving residence in Manhattan.The historic home was built in 1765 by Colonel Roger Morris, a Loyalist who returned to England when the Revolutionary War broke out.During the war, George Washington used the site as his military headquarters during the Battle of Harlem Heights.