If You're Heading North On I-485, Also Take Exit 52 And Merge Onto John St./Monroe Rd. (Nc-51) Towards Matthews. Turn Left Onto John Street (If You're Coming From I-485 North) Or Turn Right Onto John Street (If You're Coming From I-485 South). Drive Straight On John St. Continue Straight On John Street For Approximately 2 Miles. Turn Right Onto Smith Circle. You'll See Smith Circle On Your Right After Passing A Few Residential Areas. Arrive At 421 Smith Circle: Continue On Smith Circle Until You Reach 421, Which Should Be On Your Right Side.