A 7,645 sq ft lot in Alcova Heights, blocks from the park, with a full basement ready to grow into. This three-level Cape Cod offers something increasingly hard to find in Arlington: a detached home with room to enjoy today and possibilities for the future. Inside, you'll find 3 bedrooms and 2 full baths, including two bedrooms on the main level and a private upper-level bedroom suite with its own full bath. Hardwood floors run throughout the main level, and the comfortable layout includes separate living and dining spaces with plenty of natural light. Downstairs, the large unfinished basement gives you valuable flexibility. Use it now for storage, a workshop, hobbies, exercise space, or projects-or explore the possibilities for creating additional finished living space in the future. The lower level also includes a dedicated laundry area with washer, dryer, utility sink, and additional storage. Outside, the generous 7,645 sq ft lot offers a backyard shaded by mature trees, raised garden beds, and a storage shed, with plenty of room to relax, entertain, garden, or simply enjoy having outdoor space of your own. And the location is one of the home's biggest advantages. Alcova Heights Park just blocks away, with Columbia Pike's restaurants, shopping, and everyday conveniences nearby. Easy access to S. George Mason Drive, S. Glebe Road, Route 50, the National Foreign Affairs Training Center, National Guard Bureau Headquarters, and the Army National Guard; and I-395 puts the rest of Arlington, Northern Virginia, and Washington, DC within easy reach. No HOA. A detached home. A substantial Arlington lot. A full basement with room for possibilities. At $769,000, 3917 6th Street S. is an opportunity to make a home your own in Alcova Heights.