Welcome to this exceptional Toll Brothers Marion model, offering over 5,800 square feet of finished living space in the highly sought-after South Riding community. This impressive 5-bedroom, 4.5-bath residence is situated on a premium .37-acre lot backing to preserved open space, providing outstanding privacy and a beautiful natural setting. A grand double-door entry welcomes you into a light-filled home featuring hardwood flooring, newly installed hardwoods in the family room, upgraded interior lighting, ceiling fans, crown molding, shadow boxes, and fresh paint throughout. The dramatic two-story foyer showcases a stunning butterfly staircase, a signature feature of the Marion model, while a second staircase provides convenient access between levels. Designed for both everyday living and entertaining, the main level features formal living and dining rooms, a private office with French doors, and an open-concept family room with a gas fireplace and skylights that flood the space with natural light. The gourmet kitchen offers newly refinished cabinetry, a large center island, a desirable 5-foot extension for additional space, and a skylight that creates a bright and welcoming atmosphere. Step outside to the expansive composite deck overlooking the private backyard and protected open space beyond, providing the perfect setting for outdoor entertaining or peaceful relaxation. The upper level features new carpeting throughout and four spacious bedrooms. The luxurious primary suite includes a fully renovated spa-inspired bathroom completed in 2025. Every bedroom enjoys direct access to a bathroom, while the additional upper-level baths have been updated with new flooring. The powder room was completely remodeled in 2025. The fully finished lower level, completed in 2025, adds incredible flexibility with luxury vinyl plank flooring, a large bedroom with a walk-in closet, full bathroom, spacious media room, finished storage room, and a future wet bar area with framing, plumbing and electrical already completed, ready for your custom cabinetry and countertops. Additional improvements include a freshly painted foundation (2026), new exterior lighting (2026), sealed driveway (2026), upgraded landscaping, and a freshly painted side-entry three-car garage. The oversized laundry room features a convenient shower for pets, outdoor clean-up, or muddy shoes and provides direct access to a staircase leading to the backyard. Residents enjoy South Riding's outstanding amenities, including multiple pools, parks, playgrounds, tennis and pickleball courts, fishing ponds, community events, and miles of walking and biking trails. Conveniently located near Routes 50, 28, and I-66, with easy access to the Dulles Greenway, Dulles International Airport, shopping, dining, and Washington, D.C., this home offers the perfect combination of luxury, comfort, convenience, and location. With over 5,800 finished square feet, a three-car side-entry garage, dual staircases, extensive recent upgrades, and a private lot backing to protected open space, this meticulously maintained Toll Brothers Marion model combines timeless architecture, modern updates, and one of the most desirable floor plans in South Riding.