Seattle Convention Center Floor Plan 2025. Arch at 705 pike street, seattle convention center's original building, features 61 meeting rooms, four ballrooms and six exhibit halls, as well as a number of cozy seating areas for intimate. Lmn architects celebrates the completion of the seattle convention center summit building.

Looking to double its capacity, the seattle convention center (formerly washington state convention center) expanded with the addition of the summit. Full view of the glass wall in the top floor main ballroom of the summit seattle convention center expansion.