Union Square is a

skyscraper A skyscraper is a tall continuously habitable building having multiple floors. Modern sources currently define skyscrapers as being at least or in height, though there is no universally accepted definition. Skyscrapers are very tall high-ri ...

complex at Sixth Avenue between Union and University Streets in

Downtown Seattle Downtown is the central business district of Seattle, Washington. It is fairly compact compared with other city centers on the U.S. West Coast due to its geographical situation, being hemmed in on the north and east by hills, on the west b ...

, Washington, adjacent to

Freeway Park Freeway Park, officially known as Jim Ellis Freeway Park, is an urban park in Seattle, Washington, United States, connecting the city's downtown to the Washington State Convention Center and First Hill. The park sits atop a section of Interstate ...

. It consists of two skyscrapers built in the 1980s and primarily used for office space. 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. Both structures were awarded

LEED Leadership in Energy and Environmental Design (LEED) is a green building certification program used worldwide. Developed by the non-profit U.S. Green Building Council (USGBC), it includes a set of rating systems for the design, constructio ...

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

Buildings

One Union Square

One Union Square is an aluminum clad skyscraper consisting of 36 floors with 2 floors below ground. Construction of this class A office building was completed in 1981. It is the first office building in Seattle to house all life-support systems in one location. The architect of One Union Square was TRA.

Two Union Square

Construction on Two Union Square began in 1987 and was complete by 1989. When accounting for the tip of the flag pole, the building is the second-tallest building in the Seattle skyline. The Seattle-based architectural firm

NBBJ NBBJ is an American global architecture, planning and design firm with offices in Boston, Columbus, Hong Kong, London, Los Angeles, New York, Portland, Pune, San Francisco, Seattle, Shanghai, and Washington, D.C.. NBBJ provides services in arch ...

designed the tower, which was dedicated on July 29, 1989. Two Union Square has 56 floors with of rentable space, and an underground concourse connecting to the Seattle Hilton Hotel, and shopping at Rainier Square. It is the first skyscraper to use 19,000 lbs/in.² high-strength concrete.

Tenants

* AB Berstein * Alston, Courtnage & Bassetti LLP * Apex Companies, LLC *

Apple, Inc. Apple Inc. is an American multinational technology company headquartered in Cupertino, California, United States. Apple is the largest technology company by revenue (totaling in 2021) and, as of June 2022, is the world's biggest company b ...

* AmWins * Arboretum Mortgage * Avenue 55 * BDO * Bennett, Bigelow & Leedom P.S. * BlackRock Financial * Bush Strout & Kornfeld * Chapter 13 Trustee * Colliers International * Ederer Investment Company * Edge Asset Management * First Choice Health * Flinn Ferguson * Floyd, Snider * Frazier Healthcare * Gordon, Tilden, Thomas, Cordell * GreaterGood Network *

HDR, Inc. HDR, Inc. is an employee-owned design firm, specializing in engineering, architecture, environmental, and construction services. HDR has worked on projects in all 50 U.S. states and in 60 countries, including notable projects such as the Hoover ...

* Homestreet Bank * Horizon Realty Advisors, LLC * Integra Realty Resources * Jones Lang LaSalle * Kidder Mathews * Kosmos Management * Lasher Holzapfel Sperry & Ebberson * LBA Realty * Littler Mendelson, PC * Lockton * The Lyman Group * Marcus & Millichap * McNaul, Ebel, Hawrot & Nelgren PLLC *

Morgan Stanley Wealth Management Morgan Stanley Wealth Management is an American multinational financial services corporation specializing in retail brokerage. It is the wealth & asset management division of Morgan Stanley. On January 13, 2009, Morgan Stanley and Citigroup annou ...

* National Center for APEC * Northwestern Mutual Financial Network * Pacific Project Management (PPM) * Paragon Real Estate Advisors * Penrith Home Loans * Pillar International Insurance Advisors * Porter Foster Rorick LLP * Protiviti * Robert A. Underhill *

Robert Half International Robert Half, formally referred to as Robert Half International Inc., is a global human resource consulting firm based in Menlo Park and San Ramon, California, founded in 1948. It is a member of the S&P 500, and is credited as being the world' ...

* Sashen Ventures * Seattle Chamber Music * Stoel Rives LLP * USI Insurance Services Northwest * Wedbush Securities *

Williams Kastner Williams Kastner is a law firm headquartered in the Two Union Square building in Seattle, Washington. The firm is ranked number 10 on the list of the Puget Sound area's largest law firms by the Puget Sound Business Journal. Overview William ...

* Willis Towers Watson

References

External links

Union Square official websiteSeattle Virtual tour
at Bohonus VR Photography {{Seattle Skyscrapers NBBJ buildings Skyscraper office buildings in Seattle Twin towers Downtown Seattle Office buildings completed in 1981 Office buildings completed in 1989