|Former names IDX Tower|
Height 156 m
Opened 4 December 2002
Architecture firm ZGF Architects LLP
|Type Commercial offices|
Roof 156.06 m (512.0 ft)
Construction started 2000
|Location 925 Fourth Avenue
Floor count Above ground: 40 Below ground: 2
Similar Wells Fargo Center, 1600 Seventh Avenue, Safeco Plaza, 1111 Third Avenue, 1918 Eighth Avenue
The Fourth and Madison Building (formerly the IDX Tower) is a 40-story skyscraper in downtown Seattle, Washington. 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.
Map of Fourth and Madison Building, Seattle, WA 98164, USA
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.
The rooftop garden on the seventh floor is a privately owned public open space (POPOS).
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.