Welcome to 631 18th Avenue, a home filled with character, space, and opportunity in one of San Francisco's most sought-after neighborhoods. This residence offers 4 bedrooms and 1.5 bathrooms, a generous backyard ideal for everyday living and entertaining, and excellent potential at the garage level, providing flexibility for future expansion, a home office, guest space, or creative use. The layout offers a solid foundation for buyers looking to customize and add long-term value. The location truly sets this home apart. Just 1.5 blocks from Golden Gate Park, you'll enjoy easy access to open green space, walking and biking trails, playground, and nearby tennis courts. A highly regarded public elementary school is only a two-minute away. Balboa Street and Geary Boulevard are moments away, offering a vibrant neighborhood lifestyle with local restaurants, coffee shops, grocery stores, and everyday conveniences. An express bus nearby provides a quick and convenient commute to Downtown and the Financial District. Enjoy close proximity to Ocean Beach, the Presidio Golf Course, and the scenic Lands End hiking trails, all just minutes away. This is a rare opportunity to own a home that combines location, lifestyle, and long-term potential in the heart of San Francisco.