| Fourth and Madison Building | |
| Former Names: | IDX Tower |
| Location: | 925 Fourth Avenue Seattle, Washington |
| Coordinates: | 47.6055°N -122.333°W |
| Map Type: | Seattle WA Downtown |
| Start Date: | 2000 |
| Completion Date: | 2002 |
| Building Type: | Commercial offices |
| Roof: | 156.06m (512.01feet) |
| Floor Count: | Above ground: 40 Below ground: 2 |
| Elevator Count: | 22 |
| Floor Area: | 845000square feet |
| Structural Engineer: | Magnusson Klemencic Associates |
| Owner: | TIAA-CREF |
| References: | [1] |
The Fourth and Madison Building (formerly the IDX Tower) is a 40-story skyscraper in downtown Seattle, Washington.[2] 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 500feet in over a decade.
In 2007, Fourth and Madison was awarded the BOMA International Office Building of the Year Award in the 500000- category.[3]
The rooftop garden on the seventh floor is a privately owned public open space (POPOS).[4]
Construction of the foundation required shoring around the Great Northern Tunnel and Downtown Seattle Transit Tunnel. The tower also cantilevers 12feet over the Downtown YMCA.[5]