From H E Thomas Jr Pkwy And Interstate 4, Head West On H E Thomas Jr Pkwy/ Seminole County Rd 46A Toward Colonial Center Pkwy. Turn Right Onto S Orange Blvd. Turn Left Onto Markham Rd/State Hwt 46 A. Guard Gate At Buckingham Estates. Turn Right Onto Merlot Dr. Turn Left Onto Northumbria Dr.