505 Union Station

Seattle, Washington

Project Description

This 11-story office building is the new headquarters for Vulcan Properties and has nine different wall systems making up the building enclosure.

Scope of Services

CDC provided complete consulting services for Design Development, Construction Documents, performance mock-up testing and Construction Administration, shop drawings, and engineering for the unitized curtain walls and the two-side supported glass wall. The systems feature clear laminated glass, limestone, aluminum shadow boxes, glass fins,and copper panels that are designed to withstand environmental, seismic, and blast loads. In addition, CDC provided shop drawing and engineering for the performance and NFRC mock-ups. 

CDC Client


Design Architect


Date of Completion