Welcome to 1623-1625 20th Avenue, a classic 1940s-era duplex in San Francisco's highly desirable Outer Sunset neighborhood. This well-maintained two-unit building presents a fantastic opportunity for both investors and owner-occupiers seeking strong value and long-term upside in a thriving residential area. Each unit includes two spacious bedrooms and one full bathroom, with well-proportioned layouts and excellent natural light. Rear-facing rooms enjoy scenic views of the city and ocean. Both units are tenant-occupied at solid rental rates, offering immediate cash flow or potential for future occupancy. Additional highlights include a large garage with abundant storage, a charming shared backyard, and on-site laundry. The Outer Sunset is known for its laid-back atmosphere and proximity to Golden Gate Park, Ocean Beach, and top-rated public schools. Residents benefit from easy access to public transit and vibrant shopping and dining corridors along Irving, Noriega, and Judah. With continued demand and appreciation, this property offers a compelling opportunity in one of San Francisco's most livable neighborhoods.