Situated on a premier quarter-acre cul-de-sac lot within an established Arlington neighborhood zoned for Martin High School, 3409 Moneta Court delivers an exceptional balance of space, privacy, and modern updates. The main level is designed for effortless day-to-day living and large-scale gatherings alike, anchored by an open kitchen that flows seamlessly into the central living area. Large energy-efficient windows fill the interior with natural light while offering clear views of the backyard pool. The first floor features a spacious primary suite equipped with a deep soaking tub, separate walk-in shower, and a generous closet. Uniquely, a second bedroom and full bathroom are also located on the main floor, creating an ideal setup for guests or multigenerational living. A dedicated main-floor flex room provides the perfect footprint for a home office or playroom, situated near the oversized laundry and utility room. Upstairs serves as a private secondary retreat, housing two additional bedrooms and a massive game room. Secured by a private electric gate, the long driveway leads to an oversized three-car garage that offers abundant vehicle parking, extra storage, and a smart camera-integrated opener. The remaining outdoor spaces are fully optimized for privacy and utility, showcasing a sparkling pool, covered patio, open lawn, and a separate powered storage shed ideal for a workshop. Substantial mechanical and structural upgrades bring absolute peace of mind to this move-in-ready home. Dual heating and cooling systems were replaced in late 2024, complementing fresh interior paint and brand-new carpet throughout. Efficiency and technology enhancements include a composite roof and gutters from 2019, radiant barrier insulation, a whole-house surge protector, and modern recessed lighting. Meticulously maintained, this home is entirely ready for its next chapter.