Unique mixed-use opportunity just steps from Downtown San Mateo. 709711 S B Street is a two-story standalone building totaling approximately 5,005 square feet on a 4,400 square foot lot, offering flexible options for owner-users, investors, or tenants seeking character space. The property is currently vacant and available for sale or lease, allowing a buyer or tenant to immediately reposition the space. The ground floor (approx. 2,385 SF) was formerly occupied by a bar/restaurant and includes an existing bar build-out and a fenced outdoor backyard/patio area, ideal for restaurant, bar, hospitality, or retail uses. The second floor (approx. 2,620 SF) features high ceilings, an open layout, and excellent natural light, making it well suited for creative office, studio, fitness, education, or collaborative workspace. Zoned C1-3/R5, the property offers potential for a variety of retail, office, and mixed-use uses in a highly desirable San Mateo location with strong street presence and easy access to Downtown amenities.