This is not Downing Drive. It is a driveway to The Country House whose address is 2000 Baldwin Road. 
Google maps also has this mistake.
I looked at the official town zoning map and confirmed Downing Drive does not resume after the Trailway 
https://www.yorktownny.gov/sites/default/files/fileattachments/building/page/208/officialzoningmap-revnov2018.pdf