Welcome to 42860 Nashua Street - a beautifully updated 3-bedroom, 3.5-bath colonial in the heart of desirable Belmont Greene, Ashburn. Set on a quiet, tree-lined street with exceptional curb appeal, this home blends timeless charm with modern efficiency and one of the largest fully fenced lots in the community. Step onto the welcoming front porch with its crisp white railings and classic picket fence, framed by mature landscaping. Inside, hardwood floors flow throughout the main level into an open, light-filled layout. The updated kitchen is a standout, featuring maple cabinets, granite countertops, stainless steel appliances, a generous center island, and a sunny eat-in area - perfect for casual meals and entertaining. Just steps away, the family room and formal dining space are anchored by a cozy gas fireplace and enhanced with elegant crown molding. Upstairs, the primary suite offers fully renovated luxurious spa-like bath with a soaking tub and glass separate shower. Two additional bedrooms and a full bath complete the upper level. The fully finished lower level provides versatile living space with a large recreation room, a flexible den (ideal as a 4th bedroom or home office), and a full bath - ideal for guests, hobbies, or movie nights. Significant energy-efficient upgrades make this home exceptionally affordable to run: 8kW solar panels (installed 2021) that dramatically reduce electric bills. Additional attic insulation, duct sealing, and wall sealing. New windows throughout. New roof (2017), tankless hot water heater, and energy-efficient front/back doors with storm doors. Aprilaire whole-house humidifier with expanded filtration, and Whole-home network cabling. Outside, the private backyard is a true highlight - one of the largest in Belmont Greene. Enjoy the spacious rear deck with fire pit, room for barbecues and gatherings, and a dedicated playground area. A rear-entry 2-car detached garage plus extra off-street parking complete the picture. Belmont Greene offers the perfect balance of community and convenience. Residents enjoy pools, tennis courts, playgrounds, parks, trails (including easy access to the W&OD Trail), snow removal, and trash service - all covered by a low HOA fee. The neighborhood has that warm, lived-in “Main Street” feel with friendly neighbors and tree-lined streets. Top-rated Loudoun County schools (Belmont Station Elementary, Trailside Middle, Stone Bridge High), shopping at One Loudoun, and quick access to Route 7, the Greenway, Silver Line Metro, and Dulles Airport put everything you need just minutes away. This is more than a house - it's a thoughtfully maintained, energy-efficient home that feels genuinely loved and move-in ready. Whether you're a first-time buyer, growing family, or looking to downsize, this home delivers charm, comfort, practicality, and outstanding value in one of Ashburn's most beloved communities. Schedule your private showing today and make this gem yours!