., Building 4, Bellevue, WA 98005 main; From I-90 Eastbound to Sunset Building 1. Start out on 1-90 east toward Bellevue/Spokane (7.4 mi) 2. Take the Richards Rd. Exit, Exit 10B, toward Factoria (.4 mi) 3. Turn left onto Factoria Blvd SE/Richards Rd SE (0.1 mi) 4. Turn right onto SE Eastgate Way (0.7 mi) 5.