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structure #500224175building

One Union Square

existing 139 m 36 floors 1981

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Location of One Union Square

Height Rankings

#29 in Seattle
#1225 in United States
#1687 in North America
#12468 Worldwide

Object dataJoin to edit

Building Mass Height	139 m
Architectural Height	139 m
Roof Height	139 m
Floors	36
Completion	1981
Structural Form	skyscraper
Main Usage	commercial office
Status	existing
Architectural Style	modern
Address	600 University Street
Smart Address	600 University Street
1st Level District	Downtown Seattle
2nd Level District	Central Business District
City	Seattle, WA
Country	United States

Source: SKYDB | As of: 2026-09-29

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