Lexington Exchange is located along Three Notch Road (Route 235) near the busy intersection of Maryland Routes 4 and 235 in California, Maryland. The 140-acre St. Mary’s County business community will include more than 700,000 square feet of flex/R&D and retail space, and offers pad site opportunities. Lexington Exchange is just minutes from Patuxent Naval Air Station, which employs over 20,000 military and civilian personnel.