FROM

New York City - Major Deegan Expressway North, becomes New York State Thruway, I-87. Continue to exit 8, take I-287 East (Cross Westchester Expressway), to exit 4, route 100A (North). Left turn, proceed North on 100A approximately 700 feet, turn left into Knollwood.

Long Island - Take Whitestone Bridge and proceed on Hutchinson River Parkway to I-287 Westbound (Cross Westchester Expressway), towards White Plains. Continue to exit 4, route 100A (North). Turn right, proceed North on 100A approximately 500 feet, turn left into Knollwood.

Connecticut - Merritt Parkway or New England Thruway, I-95 to I-287 (Cross Westchester Expressway), proceed Westbound to exit 4, route 100A (North). Turn right, proceed North on 100A approximately 500 feet, turn left into Knollwood.

New Jersey - From the Holland Tunnel or George Washington Bridge, proceed on West Side Highway to Saw Mill River Parkway then proceed as shown in the map above.   I-287 East to exit 4, route 100A (North). Left turn, proceed North on 100A approximately 700 feet, turn left into Knollwood.
Also, Garden State Parkway, north to New York State Thruway, then east across the Tappan Zee Bridge to I-287 East, to exit 4 100A (North), left turn onto 100A proceed North on 100A  approximately 700 feet, turn left into Knollwood road. (see map above).