Union Square (Seattle)

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Union Square
One- and Two-Union Square
Map
Alternative namesZippo Building
General information
TypeCommercial offices
Location600 University St and 601 Union St
Seattle, Washington
CompletedOne Union Square: 1981
Two Union Square: 1989
OwnerUnion Square LLC
Height
Antenna spireTwo Union Square: 243 m (797 ft)
RoofOne Union Square: 139 m (456 ft)
Two Union Square: 226 m (741 ft)
Technical details
Floor countOne Union Square: 36
Two Union Square: 56
Floor areaTwo Union Square: 1,126,400 sq ft (104,650 m2)
Design and construction
Architect(s)TRA Architects
NBBJ
Structural engineerSkilling Ward Magnusson Barkshire
Main contractorHoffman Construction
Turner Construction
References
[1][2][3][4][5]

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

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

Two Union Square

Construction on Two Union Square began in 1987 and was complete by 1989. The226 m (741 ft) building is the third tallest in the Seattle skyline. The Seattle-based architectural firm of Floyd Naramore, William Bain, Clifton Brady and Perry Johanson (NBBJ) designed the tower, which was dedicated on 26 July 1989. Two Union Square has 56 floors, 1,126,428 sq ft (104,648.6 m2) of rentable space, and an underground concourse connecting to the Seattle Hilton Hotel and shopping at Rainier Square.

Tenants

  • Ajilon Finance
  • Apple Physical Therapy-Seattle
  • Arboretum Mortgage
  • Northwestern Mutual Financial Network
  • BlackRock Financial
  • Ater Wynne
  • Blakely Sokoloff Taylor & Zafman
  • Bush Strout & Kornfeld
  • Colliers International‎
  • Ederer Investment Company
  • Ellis Li & McKinstry‎
  • First Choice Health
  • Hagen Kurth Perman & Co‎
  • Homestreet Bank‎
  • Kelly Services‎
  • Flinn Ferguson
  • GreaterGood Network
  • Kibble & Prentice‎
  • Keever Capital
  • The Lyman Group
  • Lasher Holzapfel Sperry‎
  • Miller Nash LLP‎
  • Morgan Stanley Smith Barney
  • NBS Financial Services
  • The Otto Law Group, PLLC
  • Peterson Sullivan LLP
  • Prolumina
  • Reed McClure
  • Stafford Frey Cooper‎
  • Swedish Medical Group
  • Vectorform LLC
  • Wedbush Securities‎
  • Williams Kastner

References

  1. ^ Union Square at Emporis
  2. ^ "One Union Square". SkyscraperPage.
  3. ^ "Two Union Square". SkyscraperPage.
  4. ^ One Union Square at Structurae
  5. ^ Two Union Square at Structurae

Further reading

  • Aïtcin, Pierre-Claude (1998). High-performance Concrete (1st ed.). London: E & FN SPON. ISBN 0419192700.

External links