Situated in the highly desirable Bankers Hill neighborhood of San Diego, 3501–3505 Fourth Avenue presents a rare mixed-use owner user or investment opportunity in one of San Diego’s most vibrant urban neighborhoods. The property combines professional office space with residential living in a well maintained mid-century building featuring strong street presence at the hard corner of Walnut and Fourth Avenue. Constructed in 1953, the 3,912-square-foot building sits on a 5,911-square-foot lot and consists of three units: a dental office, a multi room professional office suite(currently a cosmetic spa), and a spacious two-bedroom, two-bath residential apartment located on the upper level. The property’s flexible layout allows for a variety of uses, making it well suited for medical, professional, or boutique office users seeking an on-site residential component. A defining feature of the property is its sun lit central atrium, which creates a tranquil environment highlighted by a koi pond and mature landscaping. This inviting courtyard setting enhances the building’s mid-century architectural character while providing a peaceful atmosphere for tenants and visitors. The asset benefits from several recent improvements, including a newer roof, owned solar energy system, new instant hot water heaters, and newer HVAC systems helping reduce operating costs and improve long term efficiency. Additional features include four private on-site parking spaces and prominent signage exposure along Fourth Avenue, providing excellent visibility in a highly trafficked corridor. Positioned in a walkable, high-demand neighborhood near employment centers, retail, dining, and cultural destinations, this property represents an attractive opportunity for investors or owner-users seeking a unique and character-rich asset in central San Diego.