Seattle Office
Seattle is the founding home of Seneca Group, established in 1992 in response to an unmet need for disciplined, high-quality development management services.
From the outset, our team has combined deep expertise with a highly personal, client-focused approach. Today, the Seattle office remains a cornerstone of our firm – leading projects across sectors, product types, and global markets – while continuing to deliver trusted service and results.
Office Details
1191 2nd Avenue, Suite 1500 Seattle, WA 98101
206.628.3150
Guest parking in the 2nd & Seneca building can be accessed from either Seneca Street or Spring Street, between 1st and 2nd Avenues. Check in with lobby security to gain access to the elevators up to Floor 15. Please bring your parking ticket and we will validate for any time spent with us.
More About Our Firm
West Coast Projects
Our West Coast portfolio is defined by complexity, innovation and scale. In partnership with our clients, we’ve helped shape the Seattle region, delivering more than 100 projects across the Pacific Northwest.
West Coast Team
Bringing deep regional expertise and strong relationships with project partners and AHJs, the team supports projects across markets—traveling wherever needed to deliver continuity from planning through completion.
West Coast News
Stories and updates from across the West Coast, featuring project milestones, client announcements, team member successes, and perspectives from our team.
Our Team
Meet the talented professionals who bring our clients’ projects to life.
Learn how our people drive every project success through expertise, collaboration, and a commitment to delivering results.