999 Peachtree, Office building in Midtown, Atlanta, United States

999 Peachtree is a 121-metre, 28-storey class A office tower at the intersection of Peachtree Street and Tenth Street on the Midtown Mile in Midtown Atlanta. Heery Architects and Engineers designed it in 1985/86, with John Cheek as project architect and Joe Gottardy as lead mechanical engineer, and construction was completed in 1987. The building was originally called First Union Plaza.

Built in 1987 by Heery Architects and Engineers, the structure was originally named First Union Plaza and served as the headquarters for First Union National Bank of Georgia. Its completion reflected a major development phase in Atlanta's business district at that time.

The ground floor holds Empire State South restaurant, a gathering space for diners and professionals. The Peachtree Club near the top serves as a meeting place that reflects how the city's business community socializes.

The structure sits at an intersection with strong public transit connections and houses a large parking garage on site. Keep in mind that most spaces are office-only, but the dining venues on the ground floor and near the top are open to visitors.

In 2019, the tower earned LEED Platinum certification, becoming a standout example of sustainable retrofit in commercial architecture. This achievement shows how existing office buildings can be transformed to meet modern environmental standards.