Saw Mill Pkway North:
Exit 12 [Left Exit]:  Farragut Pkway, Hastings on Hudson
Pass Hastings HS on right; at 1st light bear right on to Rte 9 
go thru 2 more lights, then

#1:  at 4th light, bear left down hill [Livingston Ave]
Continue after stop sign onto Main St
Make left at next light [Chestnut St]
Right at next stop sign [Palisade St]
Turn left into large driveway near end of street:  145 Palisade St

Saw Mill Pkway South:
Exit 17; continue straight onto Ashford Ave
#2:  continue and pass Dobbs Ferry Hospital Pavilion on left [1st light]
At 3rd light [Rte 9], get in right lane
#3:  Make right at next light on Cedar St
Go straight to Palisade St; make left
Take driveway on right.  145 Palisade St

From Tarrytown and points north:
Rte 9 South thru Irvington
Pass Mercy College & Dobbs Ferry HS on right
At next light, make right on Ashford Ave, into right lane
Immediately follow #3 above

From Ardsley and points east:
Ardsley Rd [becomes Ashford Ave] west; cross over Saw Mill Pkway & Rte 87
Follow #2 above

From Hastings & points south:
Rte 9 north
After A&P intersection [light], go thru 2 more lights
Follow #1 above