[1] Within Perimeter Center, they are followed by Three Ravinia Drive in Dunwoody, and Park Towers II and I in Sandy Springs, the only others to be true skyscrapers over 330 feet (100 m).

In 2009, the lights became green to show support for recycling, as part of the owners' program to reduce waste and electricity usage.

[3] For December 2017, the towers were lit blue and orange to raise awareness for Crohn's disease, on behalf of the Crohn's & Colitis Foundation; local Georgia Bulldogs fans mistook these colors as support for the Auburn Tigers football team.

[5] In 2016, plans were submitted for a pedestrian-friendly mixed-use development which would act as an expansion to both Concourse at Landmark Center.

Plans calls for a 5-story, 125-room boutique hotel connected to an existing parking structure at the intersection of Peachtree Dunwoody Road and Hammond Drive; a 5-story, 270-unit “high-end” apartment building atop a “concrete podium”; and 24,500 square feet of restaurant and retail space in three buildings.