The entire complex features a 1,100-stall parking garage, a courtyard, a retail plaza spanning three stories and an underground pedestrian concourse that connects with the Fifth Avenue Theater and Rainier Square.

[8] Both structures were awarded LEED certification in 2009 and eventually received LEED Platinum certification 6 years later as a result of reduced annual energy consumption by 40 percent through recent renovations.

[9] The entire complex is currently managed by Washington Holdings, a real estate firm also known as Union Square LLC which is based in Seattle.

It is the first office building in Seattle to house all life-support systems in one location.

The Seattle-based architectural firm NBBJ designed the tower, which was dedicated on July 29, 1989.