Saf Keep Storage 2480 Middlefield Rd, Redwood City, CA94063 Friendly service distinguishes this location of the Bay Area self-storage chain, located next to Costco on southbound…More Middlefield, south of Woodside Road. The staff will gladly accept deliveries to units during office hours, and many units have electric outlets. A shop onsite sells packing and moving supplies. The units are protected 24 hours daily by a locked access gate. The welded-steel box sculpture out front was made by an artist.