Union Square (Seattle)

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Union Square
Two Union Square 2.jpg
One- and Two-Union Square, June 2007
Alternative names Zippo Building
General information
Type Commercial offices
Location 600 University Street and
601 Union Street
Seattle, Washington
Coordinates 47°36′36″N 122°19′55″W / 47.610°N 122.332°W / 47.610; -122.332Coordinates: 47°36′36″N 122°19′55″W / 47.610°N 122.332°W / 47.610; -122.332
Completed One Union Square: 1981
Two Union Square: 1989
Owner Union Square LLC
Height
Antenna spire Two Union Square:
797 ft (243 m)
Roof One Union Square:
456 ft (139 m)
Two Union Square:
741 ft (226 m)
Technical details
Floor count One Union Square: 36
Two Union Square: 56
Floor area Two Union Square: 1,126,400 sq ft (104,650 m2)
Design and construction
Architect TRA Architects
NBBJ
Structural engineer Magnusson Klemencic Associates
Main contractor Hoffman Construction Company
Turner Construction
References
[1][2][3][4][5][6][7]

Union Square is a twin tower skyscraper complex at Sixth Avenue between Union and University Streets in Downtown Seattle, Washington, adjacent to Freeway Park.

One Union Square[edit]

One Union Square is an aluminum clad 456-foot (139 m) skyscraper consisting of 36 floors. Construction of the building was completed 35 years ago in 1981.

Two Union Square[edit]

Construction on Two Union Square began in 1987 and was complete by 1989. The 797-foot (243 m) building is the third-tallest building in the Seattle skyline. The Seattle-based architectural firm NBBJ designed the tower, which was dedicated on July 29, 1989. Two Union Square has 56 floors with 1,126,428 square feet (104,649 m2) of rentable space, and an underground concourse connecting to the Seattle Hilton Hotel [8] and shopping at Rainier Square. [9]

Tenants[edit]

See also[edit]

References[edit]

Further reading[edit]

  • Aïtcin, Pierre-Claude (1998). High-performance Concrete (1st ed.). London: E & FN SPON. ISBN 0-419-19270-0. 

External links[edit]