Design-Build Team


Enterprise Services conducted a two-stage bidding process and in 2014 selected ZGF Architects and Sellen Construction as the design-build team for the project. Both firms have offices in Seattle.

The streamlined and cost-efficient design-build model used for this project helped ensure the project was completed on time and on budget. 

The project team’s close partnership also enhanced the ability to:

  • Make adjustments when changes occurred – like adding solar panels to the project after a grant from the state Department of Commerce was received.
  • Switching to indoor work to stay on schedule when Washington State had the wettest spring on record.
  • Meet sustainable goals like keeping construction waste out of landfills. In this project, diversion from landfills exceeded 92 percent.

Made in Washington 

For every dollar invested in the project, the team had a goal of reinvesting 75 cents of every dollar back in Washington companies and workers. The team beat that goal, reinvesting 88 cents for every dollar of labor and materials sourced from Washington. That’s $68 million to support businesses in Washington. 

  • Over 20 percent of materials were regionally sourced (less than 500 miles from site).
  • Learn more about the team’s Made in Washington priority. 

Design-build project budget

  • $13 million appropriated for predesign, design, project management, demolition preparation and other planning activities by the 2013 Legislature.
  • $69 million appropriated for construction by the 2015 Legislature.
  • $1.7 million came from a Washington Department of Commerce grant for solar panels (photovoltaics.)
  • $1.98 million came from the Office of Financial Management for work added to the project’s scope so that more tenants could occupy the building, and to cover costs associated with a delay in funding for the construction phase of the project. 

Total project budget: $85.7 million
Design-build project completed on time and on budget. 

Project background

In July 2015, Enterprise Services gave the design-build team notice to proceed with demolition and construction. The design-build team designed and constructed a five-story, 225,000 square-foot office building that is in the top 1 percent of office buildings nationally in energy efficiency. 

Learn more about the project schedule.

Important documents