637–639 Bush Street presents the opportunity to acquire a 34-unit mixed-use apartment building in San Francisco’s Lower Nob Hill/Downtown neighborhood. Constructed in 1913, the property encompasses approximately 16,824 square feet and is comprised of 32 residential units and two (2) commercial spaces. The residential unit mix includes 21 studio apartments and 11 one-bedroom apartments, offering a highly efficient mix of units in a central San Francisco location. The apartments feature a blend of classic character and functional finishes, including hardwood and carpeted flooring, generous closet space, wood-frame windows, and ample natural light. Kitchens are equipped with gas stoves and ovens, granite countertops over wood cabinetry, stainless steel sinks, and full-size refrigerators. Bathrooms feature hexagon tile flooring, tiled surrounds, cabinet vanities, and clawfoot tub/shower combinations. The building retains attractive period details throughout its common areas, including a marble front landing, decorative lobby lighting, plaster walls, and carpeted hallways. Residents benefit from elevator access and a secure Akuvox entry system. Additional improvements and features include a newer boiler system, fire protection throughout all floors, and owner-controlled basement storage. Situated near the intersection of Bush and Powell Streets, 637–639 Bush Street offers residents convenient access to Downtown San Francisco, Union Square, Nob Hill, and the surrounding employment, dining, shopping, and entertainment amenities. The property’s substantial scale, efficient residential unit mix, two commercial spaces, and central location present a compelling opportunity for an investor seeking a well-located San Francisco mixed-use asset.