ATLANTA — The Ardent Cos. has purchased Piedmont Center 14, a 300,454-square-foot office building located at 3535 Piedmont Road in Atlanta’s Buckhead district, for $58 million. The building is situated within Piedmont Center, a 2.1 million-square-foot office park in Buckhead located on 52 acres near Ga. Highway 400 and Piedmont Road. According to the Atlanta Business Chronicle, Ardent now owns nearly 1.7 million square feet within Piedmont Center and has the third largest office footprint among Buckhead owners, trailing only Cousins Properties and Highwoods Properties Inc. Built in 1988, Piedmont Center 14 was 79 percent leased at the time of sale to tenants including MagMutual, Change Healthcare, Kenzie Lane and NCC Media. Richard Reid, Ryan Clutter, Ralph Smalley and Huston Green of HFF represented the undisclosed seller and procured the buyer in the transaction.