Residence Inn by Marriott Seattle Downtown/Convention Center, 1815 Terry Ave, Seattle, WA 98101, USA

Date and Time

Wednesday, June 5 2019 - 6 PM

Event Details

The summer of 2018, the Washington State Convention Center Addition broke ground and became the largest commercial project under construction in the region. The $1.8 billion, 1.4 million square-foot WSCC Addition will be completed in 2121 and is expected to bring in $260 million annually in visitor spending and 3,900 jobs. In addition, the project includes a $200 million apartment project with about 400 units and a $300 million office building of about 500,000 square feet.

Pine Street Group, the project developer and owner’s representative, went through an extensive entitlement process to bring the WSCC Addition project to life. Matt Griffin (MS ’77, MBA '77), Managing Partner, Pine Street Group, and his partner, Matt Rosauer, Principal, were generous enough to offer SPIRE members and guests an opportunity to learn about this fascinating and enormous project.

To kick off the event, we gathered at the Creator Space in Marriott Residence Inn for a cocktail reception, which incidentally, has a perfect view onto the project. Everyone enjoyed summer cocktails and locally-inspired cuisine while they chatted with industry friends and colleagues, and made new acquaintances until it was time to sit down for the presentation.

Matt Griffin and Matt Rosauer took to the podium to bring us us through some of the complexities of the entitlements process (which required $93 million in community benefits to get through the "Seattle process") and challenges constructing on a 7+ acre site in the heart of a vibrant downtown (which includes sharing the site with bus operations and setting 180-foot-long trusses weighing over 400 tons each). They also talked about the numerous city and state departments, local organizations, interest groups and city officials that were a part of the negotiations and some of the specific objectives they brought to the table. It was interesting for the group to learn about some unique goals and constraints of the project that led to the current plan and some of the challenges and successes they encountered along the way.

The WSCC Addition is an enormous and impressive project and we're grateful to Matt Griffin and Matt Rosauer for sharing it with all of us. We'll be excited to watch its progress and hope that we'll be able to return to see the Addition upon its completion.


The WSCC Addition will include 250,000 square feet of exhibition space, 125,000 square feet of meeting rooms and 60,000 square feet of ballroom space. The architect is LMN, and Clark Construction, in a joint venture with local contractor Lease Crutcher Lewis, is constructing the building. The WSCC Addition will double the booking capacity of the current convention center and is expected to create steady year-round demand for Seattle’s hotels, restaurants, retail and entertainment venues; provide a unique opportunity to improve the urban environment surrounding the center; strengthen the downtown-to-Capitol-Hill connections; create construction and hospitality jobs and generate sales and car rental taxes to support local and regional jurisdictions. This includes more than $100 million in sales tax from the construction and about $19 million annually from operations.

In the Northwest corner is the residential project block that will house approximately 400 units in a 29-story tower. The project capitalizes on the expertise of Pine Street Group in developing the Via6 apartments at Sixth Avenue and Lenora Street in downtown Seattle. In the Northeast corner is the office project composed of approximately 540,00 square feet in a 16-story building with retail on the ground floor. As designed, the office project capitalizes on the experience of PSG in developing the Russel Investments Center at Second Avenue and Union Street in downtown Seattle, which houses Russell Investments, Zillow, Docusign, Oracle, the Seattle Art Museum main exhibit space, and others.


Matt Griffin (MS ’77, MBA '77), Managing Partner, Pine Street Group L.L.C.

Matt Griffin is managing partner of the Pine Street Group in Seattle, a real estate development firm for commercial, residential, retail, and mixed-use properties. He has spent most of the last 40 years developing property in downtown Seattle. The company recently completed Via6, a 24-story, 654-unit apartment project at Sixth and Lenora, and is currently constructing the $1.8 B addition to double the size of the Washington State Convention Center. Griffin splits his time between real estate and non-profit work in Seattle, currently co-chairing a capital campaign for Plymouth Housing. He holds a bachelor’s degree in civil engineering from Princeton, an MBA from Stanford, and a Master of Science in construction management from Stanford. On a personal note, he and his wife have bicycled on their own in about 60 countries.

Matt Rosauer, Principal, Pine Street Group L.L.C.

Matt Rosauer is a developer with a real estate and construction background who has owned, brokered, renovated, built, and managed commercial and multi-family real estate in varying capacities for nearly twenty years. Matt spent more than ten years in the construction industry on a wide range of projects. He is a principal at the Pine Street Group, and was responsible for development of the Via6 apartment project, encompassing 654 units in two 24-story towers at Sixth and Lenora in downtown Seattle. Currently, he oversees design and construction of for development of the $1.8 billion Addition to approximately double the size of the Washington State Convention Center. Matt and his wife have three young children and live in Madison Park. He splits his free time with outdoor sports and serving as the board chair of the Woodland Park Zoo. He is a graduate of the University of Washington.