• Next Tallest

Fourth and Madison BuildingDownload Project Factsheet

Click image for gallery.

Official Name Fourth and Madison Building
Former / Other Name IDX Tower
Type building
Status Completed
Country United States
State Washington
City Seattle
Street Address 925 4th Avenue (Map)
Building Function office
Structural Material composite
Energy Label LEED Gold
Start of Construction 2000
Completion 2003
City Ranking #12 tallest in Seattle
Height: Architectural 156.1 meter / 512 feet
Height: To Tip 156.1 meter / 512 feet
Floors Above Ground 40
Floors Below Ground 4
# of Elevators 16
Tower GFA 97,826 m² / 1,052,990 ft²
Companies Involved
Developer Gerald D Hines Interests
Design Kendall / Heaton Associates; Zimmer Gunsul Frasca Partnership
Structural Engineer Magnusson Klemencic Associates
Main Contractor PCL Construction Management Inc.
Technical Papers
Shoring Wall and Subsurface Structural Systems: IDX Tower
D. G. Winter (Shannon & Wilson), D. E. Loesch (Magnusson Klemencic Associates), CTBUH Journal