Welcome to 2409 Harpoon Drive, with over 4200 square feet this is an exceptional 5-bedroom, 5-full-bathroom residence in the amenity-rich, sought-after community of Aquia Harbor. Here residents enjoy access to a private lake, marina, pool, clubhouse, tennis courts, and equestrian facilities-just minutes from I-95 and commuter routes to Quantico, DC, and Richmond. This spacious and well-maintained home offers standout financing options designed to put buyers in the driver's seat: qualified buyers may assume the seller's VA loan at an incredible 4% interest rate, and the seller is also offering a 2/1 buydown to reduce the buyer's interest rate for the first two years of ownership, or a contribution toward closing costs. What truly sets this property apart is its fully finished lower level, complete with 2 bedrooms, 2 full bathrooms, a full kitchen, and its own private living area-a self-contained, independent living space perfect for multigenerational families, in-law suites, or rental income potential. With two full sets of washers, dryers, and refrigerators, both levels operate with total independence, and all essential systems are already in place, making this a move-in-ready, income-ready opportunity rather than a renovation project. Outside, a landscaped backyard retreat featuring a tranquil fishpond and a custom-built treehouse offers a peaceful escape for relaxation or recreation. This is a rare chance to own a versatile home in a well-established neighborhood, offering the space, flexibility, and financial incentives today's buyers are searching for. Schedule your showing today.