Welcome to an exceptional opportunity at 642 Wisconsin Street on the sunny North slope of Potrero Hill. This character-rich single-family residence offers flexible, multi-level living with dramatic architectural features rarely found in the neighborhood. Eastward facing, step inside to discover soaring attic and loft spaces crowned by warm wood-shingle ceilings and exposed beams that create an immediate sense of space and charm. The entry is graced by a beautiful stained-glass window, while the kitchen features classic tile counters and wood cabinetry ready for a fresh vision. Multiple living and sleeping areas, including unique upper-level rooms with abundant natural light, provide creative layout options for a primary suite, guest quarters, office, or studio. A full bathroom with vintage patterned tile adds period detail, and the property includes outdoor potential in the rear garden area. Perfectly positioned near the vibrant 18th Street corridor, parks, Caltrain (0.4mi), Muni Buses (#19 Polk and #55 Dogpatch 0.1mi), a block away and easy freeway access (101 HWY), this home blends classic San Francisco character with the opportunity for the discerning buyer to reimagine and elevate every space. A rare chance to acquire a distinctive Potrero Hill residence with strong bones, unique volume, and excellent upside in one of the city's most desirable neighborhoods.