Oakland/East Bay office properties realize outsized benefits during mature economic cycles. In addition to a fairly robust local office foundation, the East Bay has long served as a destination for spillover demand in the Bay Area. That trend will persist this year after both San Francisco and San Jose record cyclical-low vacancy, encouraging tenants with rollover leases to explore more affordable options while remaining within arm’s length of their high-profile clients. Office-users seeking larger footprints may also defect to the East Bay in the coming months. The average rent for available floor plans with at least 200,000 square feet is 33 percent lower than across the Bay Bridge, potentially nudging tenants facing sticker shock as leases expire. Blue Shield, for instance, opened a new headquarters in Oakland after spending the previous 80 years in San Francisco. Payment processor Square, meanwhile, recently moved into 356,000 square feet of space in Oakland’s Uptown Station, though the firm retained its San Francisco offices as well.