 It can be accessed by MARTA's Dunwoody station, which opened at the southwest corner of its parking lot in 1996.Perimeter Mall opened in 1971 and was the fourth mall to open in DeKalb County, after Avondale Mall in 1964, North DeKalb Mall in 1965, and the Gallery at South DeKalb in 1968.Its original anchor stores were Rich's and JCPenney, which made it very similar in design and layout to the nearby Greenbriar Mall.