Fourth and Madison Building

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Fourth and Madison Building
Fourth and Madison building.jpg
Fourth and Madison Building is located in Seattle WA Downtown
Fourth and Madison Building
Location within downtown Seattle
Former names IDX Tower
General information
Type Commercial offices
Location 925 Fourth Avenue
Seattle, Washington
Coordinates 47°36′20″N 122°19′59″W / 47.605498°N 122.333032°W / 47.605498; -122.333032Coordinates: 47°36′20″N 122°19′59″W / 47.605498°N 122.333032°W / 47.605498; -122.333032
Construction started 2000
Completed 2002
Owner TIAA-CREF
Height
Roof 156.06 m (512.0 ft)
Technical details
Floor count Above ground: 40
Below ground: 2
Floor area 845,000 sq ft (78,500 m2)
Lifts/elevators 22
Design and construction
Architect Zimmer Gunsul Frasca Partnership
Kendall/Heaton
Developer Hines Interests Limited Partnership
Structural engineer Magnusson Klemencic Associates
Main contractor PCL Construction
Website
fourthandmadison.com
References
[1][2][3][4]

The Fourth and Madison Building (formerly the IDX Tower) is a 40-story skyscraper in downtown Seattle, Washington.[5] The building is located at 925 Fourth Avenue, at the intersection with Madison Street. Upon its completion in 2002, the late-modernist highrise was Seattle's first building to exceed 500 ft (150 m) in over a decade.

In 2007, Fourth and Madison was awarded the BOMA International Office Building of the Year Award in the 500,000–1,000,000 sq ft (46,000–93,000 m2) category.[6]

The rooftop garden on the seventh floor is a privately owned public open space (POPOS).[7]

Construction of the foundation required shoring around the Great Northern Tunnel and Downtown Seattle Transit Tunnel. The tower also cantilevers 12 feet (3.7 m) over the Downtown YMCA.[8]

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