Merge Onto I-285 E If You're Coming From The West (Atlanta Area) Or I-285 W If You're Coming From The East (Stone Mountain Area). Take Exit 41B For Glenwood Rd Toward Us-278 E/Decatur And Continue Straight Onto Glenwood Rd. Turn Right Onto Flakes Mill Rd And Continue For About 1 Mile. Turn Left Onto Lamar St. Continue For A Short Distance, And 4252 Lamar St Will Be On Your Left.