Welcome home to 3320 Grass Hill Terrace, a truly special mid-century modern retreat tucked away at the end of a quiet cul-de-sac in sought-after Lake Barcroft! Set on nearly half an acre, this 3-bedroom, 3-bath home offers an incredible combination of architectural character, flexible living space and a private, resort-like setting—all inside the Beltway. Step inside to an open and light-filled main level featuring soaring wood-beamed ceilings, beautiful hardwood floors, floor-to-ceiling windows and multiple fireplaces. The spacious living room brings the outdoors in with walls of glass and French doors opening to the deck, while the updated kitchen features granite countertops, stainless steel appliances and a breakfast bar. All three bedrooms are located on the upper level, including an en-suite primary bedroom. The fully finished walk-out lower level offers exceptional additional living space with a spacious rec room, custom built-ins, wet bar, dedicated home office, exercise room, and full bathroom. Oversized windows provide abundant natural light, while French doors open directly to the expansive patio and backyard. Outside is where this home truly shines! Enjoy your own private oasis with a heated in-ground pool, expansive deck and patio spaces, bocce court, fenced backyard, and mature landscaping welcoming you at the front entrance. An attached 2-car garage with direct interior access and a whole-house generator add even more everyday convenience. Located in the desirable Lake Barcroft community, residents enjoy access to the lake, sandy beaches, swimming, boating, fishing and a wonderful neighborhood atmosphere. Conveniently positioned inside the Beltway with easy access to Arlington, Tysons, Washington, DC and major commuter routes. Love where you live—welcome home!