3 Sebastian Ave | Downtown St. Augustine Commercial Opportunity Prime downtown St. Augustine commercial opportunity now available at 3 Sebastian Ave. This well-located standalone commercial building offers approximately 1,080± SF and presents an excellent opportunity for an owner-user, investor, or business seeking a prominent downtown location. Fully updated and move-in ready, the property is ideally suited for a variety of professional, retail, and boutique commercial uses. Zoned CM-2 (Commercial Medium Intensity), the property offers flexible zoning with a broad range of permitted uses, including retail, office, personal and professional services, medical/professional office, gallery or boutique, studio/showroom, financial services, and limited food service with applicable approvals. The combination of flexible zoning, updated condition, and a highly desirable downtown location provides an attractive opportunity for both established businesses and emerging ventures.