From Ga-400 Northbound: Take Exit 5 Abernathy Rd Towards Dunwoody/Sandy Springs. Slight Left To Merge Onto Abernathy Rd Ne. Turn Right Onto Brandon Mill Rd Nw. Turn Left Onto River Springs Dr. House Is On The Left. From Ga-400 Southbound: Take The Exit Toward Abernathy Rd Ne. Slight Right Onto The Abernathy Rd Ramp. Take The Ramp To Sandy Springs And Merge Onto Abernathy Rd Ne. In 1.8 Miles Turn Right Onto Brandon Mill Rd Nw. Turn Left Onto River Springs Dr. House Will Be On The Left.