313 18TH AVE S Street Prime Mixed-Use Commercial Opportunity | Old Southeast St. Petersburg Position your business in a high-demand St. Petersburg location where visibility, accessibility, and functionality come together. This recently renovated 1, 608 SF mixed-use commercial space, offered at $23/SF NNN, presents an exceptional opportunity for an owner-user or tenant seeking a well-appointed property with a flexible layout and strong surrounding demographics. The solid-block building features a professional street presence with prominent signage on both the front and side of the building, 15+ dedicated parking spaces, and convenient access to major roadways, I-275, and Downtown St. Petersburg. The interior offers a versatile open floor plan complemented by two private offices, two ADA-compliant restrooms, a dedicated server room with basin sink, transom windows, and expansive vertical fixed-pane windows at the front entry that provide excellent natural light and curb appeal. Strategically located at the corner of 3rd Street S and 18th Avenue S, the property is positioned within the Salt Creek District, with proximity to Downtown St. Petersburg, the Innovation District, major hospitals and medical facilities, universities, and substantial new development. For businesses seeking a highly accessible, move-in-ready commercial space with excellent visibility, functional amenities, and proximity to St. Petersburg's urban core, this property offers a compelling opportunity to establish and grow your presence in one of the city's evolving commercial corridors.