[13] Prior to Wells Fargo purchasing Wachovia, Duke Energy was planning to occupy 240,000 square feet (22,000 m2) of space.

[13] In February 2009, Duke announced it would occupy 500,000 square feet (46,000 m2) and become the building's primary tenant.

[14] Originally, Wake Forest University had planned to locate the Charlotte campus of its Babcock Graduate School of Management in the tower, occupying approximately 25,000 square feet (2,300 m2).

[15] In August 2010 Commercial real estate firm Cassidy Turley announced it had signed a lease to occupy 11,000 square feet (1,000 m2) on the 34th floor of the building.

[16] In August 2012 Babson Capital Management announced they have signed a lease for 34,000 square feet (3,200 m2) in the building on the 33rd and 34th floors.

[17] In November 2012 Wells Fargo started utilizing 300,000 square feet (28,000 m2) for several trading floors.

The company has been consolidating its Charlotte footprint with leasing the entire 300 South Brevard building,[19] expanding their employee space in the building following Duke's departure,[20] and relocating additional employees in Three Wells Fargo Center.

The Duke Energy Center signs and plaques were removed and the building was temporarily renamed 550 South Tryon.

In the original petition to the Charlotte-Mecklenburg Planning Commission, the building was going to be built on a 1.29-acre (5,200 m2) parcel next to 400 South Tryon, with a height of 510 feet (160 m) and 34 floors.

[8] The building received a certificate of occupancy on December 23, 2009, with the lobby and parking garage opening on January 2, 2010.

Rock that was blasted for the parking structure is being recycled by hauling it to a local quarry, where it will be crushed for gravel.

Due to the tower's high visibility over the east corner of Bank of America Stadium, the LED lights are used during key moments of sporting events played there.