Federal Center South_main

Federal Center South

This award-winning, $74M, 209,000 SF, three-story headquarters building for the U.S. Army Corps of Engineers, includes a large atrium space, a divisible Multi-purpose room, Training and Meeting Rooms, and open offices.

As a subconsultant to ZGF Architects, Greenbusch provided Acoustical Design recommendations for credit toward LEED Gold certification including:

  • Sound isolation, with special attention given to the Multi-purpose, Training and Meeting rooms;
  • Surface finishes to control noise and reverberation, which is critical for speech privacy in the open offices and Atrium;
  • Mechanical system noise and vibration mitigation.


Acoustical Design


Seattle, WA

Project Size

209,000 SF


ZGF Architects LLP
Sellen Construction

Delivery Method



2013 Engineering Excellence Awards, ACEC Washington, Best in State, Silver Award

First Place for High-Performance Buildings, Beyond Green High-Performance Building Award, National Institute of Building Sciences, Sustainable Buildings Industry Council, December 2012, Honor Award

What Makes It Green?, AIA Seattle Chapter, April 2012, Honorable Mention

2030 Energy Challenge

Similar Experience

State of Washington Helen Sommers Building

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