ATLANTA — Atlanta-based Peachtree Hotel Group has sold the AC Hotel by Marriott in downtown Atlanta to Austin, Texas-based Summit Hotel Properties Inc. for $57.5 million. The 255-room hotel — a redevelopment of a former Holiday Inn — opened in May 2017 after undergoing approximately $20 million in renovations. The hotel features a health and fitness studio, outdoor patio, swimming pool and an enclosed Zen garden with greenery walls. Interstate Hotels & Resorts will manage the property. Situated at 101 Andrew Young International Blvd. in the heart of downtown Atlanta, the hotel is within walking distance to CNN Studios, Centennial Olympic Park, the Georgia Aquarium, the College Football Hall of Fame and the World of Coca-Cola.