From Broad St. in Sewickley cross the Sewickley Bridge.  Turn LEFT onto Route 51. Go two blocks past Thorn Run Road. Thornton Place is on the left. 

From North Hills:

Follow the Green Belt. Cross McKnight Road (beside McIntyre Square Mall & Northway Mall) from Peebles Road to 3 Degree Road.  At the 2^nd Light turn Right onto 19 (by Willi’s).  Make the first Left at the light onto Sewickley Oakmont Road.  Left at the light onto Rochester Road  (by and Sir Pizza).  Bear Right onto Lowries Run Road (past Brusters).  Go straight through the lights onto Camp Horne Road.  Go past Avonworth Community Park.  Turn Right at light onto 65 North/Ohio River Blvd.  Cross the Sewickley Bridge on your Left.  cross the Sewickley Bridge.  Turn LEFT onto Route 51. Go two blocks past Thorn Run Road. Thornton Place is on the left.