legacy union, formerly known as 620 south tryon, is a real estate development currently under construction in uptown charlotte, north carolina. the signature building, bank of america tower, stands at a height of 632 feet (200 meters) with 1,000,000 square feet of floor space. it broke ground on august 4, 2017. honeywell will relocate its corporate headquarters to the site and deloitte will establish a major corporate presence at the site following the development's completion in 2021.