Costco Wholesale Corporation first opened their headquarters in the mid 90’s in Issaquah, WA, an eastern suburb of Seattle bordered by the Sammamish Plateau and the Issaquah Alps. The “Issaquah Alps, aptly named for the surrounding popular ridges that Seattle hikers frequent, provide beautiful views from the glass exterior of the new Costco Corporate Headquarters Expansion project. This campus expansion will allow the retailer giant to unite employees from several satellite offices nearby to one global headquarters.   

This project is one of the first high rise construction projects within the City of Issaquah. Spanning 625,000 square feet, this project is comprised of two 9 story Class A Office buildings with an elevated skybridge that crosses a public roadway to provide access to an adjacent parking structure. Below ground, an additional single level sub-grade parking structure is being completed. Prime Electric’s scope is core & shell and tenant improvement (TI) with 111,000+ man hours planned for the initial build. Some notable features include site lighting to support an expansive exterior plaza, auto court, and creekside terrace; extensive kitchen and food service; large event auditorium; multiple exterior building terraces and glass enclosed walkways.  

In addition to the electrical work, our Low Voltage team, Prime Technologies, was brought in to handle the low voltage scope across the project. Beyond the standard security cabling for CCTV and access control doors, fire alarm system, and AV infrastructure, Prime Technologies created a unique sound masking system. This system mitigates and suppresses sound in an open office environment using white noise. PRIME put in over 5,000 emitters, making it the largest sound masking system on the west coast.  

Orchestrating the 35+ members of the PRIME field team is no easy feat when work on both the TI and core & shell is happening concurrently.  Jake O’Dell, electrician at PRIME, has been instrumental in standardizing the BIM process. He’s the go-to person for managing the detailed drawings from the BIM team, coordinating with the prefab department to produce each component exactly to spec. Relaying this information to the installation crews with his nearly two decades of knowledge in the field is key to making the drawings become reality, as efficiently as possible.  

Prime Electric has had a unique role in this expansion, working directly with Jackson Dean Construction and Costco’s management team. At the weekly project meetings, PRIME and other stakeholders team up to find ways to innovate lighting, power, and low voltage scopes to craft the project to Costco’s exact requirements. Collaboration is one of PRIME’s core values, reflected in building these key relationships. The understanding established in the continued communication and sharing of ideas allows PRIME to create the best possible final product for the clients. 

Watch our latest video on the Costco Headquarters Expansion.

Project Spotlight: Costco Headquarters Expansion

by | Feb 21, 2023 | Blog

Prime Electric’s success stems from a culture of collaboration, where our operations and in-house design teams unite to deliver efficient, customized solutions for even the most complex electrical and low-voltage projects. As the construction industry evolves, so does our range of services, continuously expanding to meet the growing demands of increasingly intricate projects. By leveraging our California and Washington electrical and low-voltage design teams, we seamlessly delivered the 222 5th project—another standout addition to Downtown Seattle. This collaboration allowed us to stay ahead of the curve, ensuring precision and innovation at every stage of the build.

Adjacent to the Space Needle and Chihuly Garden and Glass Museum, 222 5th is a 250,000 SF, Class-A research facility. The building features two levels of below-grade parking, 6,000 SF of ground-floor retail space, and nine floors of lab and office space designed to accommodate future life science tenants. PRIME’s scope of work included the design-build of electrical and low-voltage systems, OSP trenching and excavation for service providers and faults, fire alarm, CCTV, access control, parts and smarts, and a two-way intercom system.

Originally awarded the core and shell for an office tenant improvement at 222 5th, the project pivoted to a 60/40 split for lab space, requiring significant design modifications. The addition of lab spaces increased the building’s power requirements, but our engineering team was able to maintain the original project budget. One of our team’s key strengths is creativity, particularly in applying alternative calculation methods to optimize system efficiency and reduce overcapacity. While electrical systems are often designed with excess capacity, our engineers leveraged alternative calculations permitted by the National Electrical Code (NEC) for life sciences buildings, allowing us to maintain the same system size and cost without compromising the client’s vision.

“Prime Electric brought not only design but constructability to this project, allowing it to be as efficient as it can be”

Bob Hashemi

Director of Engineering, Prime Electric

The internal collaboration between our engineering and operations teams was integral to the success of this project, benefiting both our team and the customer. Effective communication allowed for information to be readily available, which streamlined processes, enabled confident decision-making, and helped us stay ahead of schedule. By managing all scopes of work under one umbrella, we gained efficiency and saved time.

Our success on the 222 5th project highlights the power of collaboration and adaptability in tackling complex challenges. By uniting our electrical and low voltage design teams, we were able to deliver a state-of-the-art facility that met both technical demands and client expectations. Despite numerous changes to the space, our combined engineering and construction expertise enabled us to adapt the design while maintaining the same level of service. The seamless collaboration between our teams ensured we stayed on track, both on budget and ahead of schedule.

Nancy Smith, Executive Director of Marketing

Nancy Smith, Executive Director of Marketing

Marketing Coordinator

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PRIME is one of the most prolific and successful electrical construction contractors on the west coast. With primary markets in the tech-centric regions of Seattle and Silicon Valley, PRIME has extensive experience across all industry groups, providing a full spectrum of electrical contracting services to our clientele.