PATH400 runs along the spine of GA 400 and, once complete, will provide a 5.2-mile greenway through the heart of Buckhead, connecting neighborhoods, office and retail locations with a path for bicyclists and pedestrians. The multi-use greenway will eventually join with the Atlanta Beltline in the south and trails in Sandy Springs and north Fulton County, providing a key link in a regional trail network.

PATH400 is the first step toward implementation of the Buckhead Collection, a planned network of 106 acres of parks and trails in the neighborhood.