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Height is measured from the level of the lowest, significant, open-air, pedestrian entrance to the highest point of the building, irrespective of material or function of the highest element (i.e., including antennae, flagpoles, signage and other functional-technical equipment).
Height is measured from the level of the lowest, significant, open-air, pedestrian entrance to the architectural top of the building, including spires, but not including antennae, signage, flag poles or other functional-technical equipment. This measurement is the most widely utilized and is employed to define the Council on Tall Buildings and Urban Habitat (CTBUH) rankings of the "World's Tallest Buildings."
Height is measured from the level of the lowest, significant, open-air, pedestrian entrance to the highest occupied floor within the building.
The number of floors above ground should include the ground floor level and be the number of main floors above ground, including any significant mezzanine floors and major mechanical plant floors. Mechanical mezzanines should not be included if they have a significantly smaller floor area than the major floors below. Similarly, mechanical penthouses or plant rooms protruding above the general roof area should not be counted. Note: CTBUH floor counts may differ from published accounts, as it is common in some regions of the world for certain floor levels not to be included (e.g., the level 4, 14, 24, etc. in Hong Kong).
The number of floors below ground should include all major floors located below the ground floor level.
office / residential
157,935 m² / 1,699,998 ft²
Note: Only buildings that have GPS coordinates recorded are displayed.
|1||Rainier Square Tower||2020||258.2 m / 847 ft||58||composite||residential / office|
|2||Rainier Tower||1977||156.7 m / 514 ft||31||steel||office|
Construction Award 2021 Winner
2021 CTBUH Awards
7 November 2019 - Event
Seattle Regional Tour
29 October 2015 - Event
11 October 2011
Integrating and even celebrating the structure of a building through the architectural design often leads to dramatic and memorable buildings. To achieve the best outcome...
21 August 2019
With construction topping off, Rainier Square is set to become the second-tallest skyscraper in the city of Seattle. The last steel beam was placed on...
05 April 2019
In yet another sign that Amazon is cooling on its hometown of Seattle, the retail-entertainment-tech giant says it is planning to move its entire...
04 March 2019
Long Island City isn’t the only place that Amazon is pulling out of. The tech giant made waves when it threatened to withdraw from its...
7 November 2019
The CTBUH Seattle Chapter hosts its annual fall workshop, discussing upcoming building code updates and urban planning for density.