Welcome to 4002 Millcreek Drive, a beautifully updated 3-level sanctuary nestled on a sprawling half-acre lot in Annandale. Enveloped by mature trees and lush greenery, this home offers a rare blend of private, park-like tranquility and exceptional convenience. Outdoor living is effortless here, whether you are relaxing on the expansive stone paver patio, that is multi-level and surrounded by nature. Large attached 2-car garage and generous driveway parking. Inside, thoughtful renovations and sun-drenched spaces greet you at every turn. The stunning sunroom features vaulted ceilings, warm terracotta tile, and wall-to-wall windows framing peaceful garden views. Gleaming hardwood floors flow into a light-filled main living area, while the spacious primary suite provides a peaceful retreat complete with hardwood flooring and ample closet space. The fully finished lower level offers tremendous versatility and function, featuring a cozy den, a full bath, and a half bath. Outfitted with modern luxury vinyl plank flooring, recessed lighting, wall-to-wall windows, built-in media cabinetry, and a separate cedar closet for extra storage, this flexible space is ideal for a home theater, exercise room, guest space, or second family lounge. Unbeatably located just moments from I-495 and the Capital Beltway, this property makes commuting throughout DC, Tysons, and Northern Virginia a breeze. Enjoy being just minutes away from Fairfax Inova hospital, the Mosaic District, and an array of top-rated restaurants, shopping centers, and local parks.