Stunning northeast-facing Oostenwind Line K model in the highly coveted Grant at Willowsford, designed by renowned Dutch architect Piet Boon and offering over 7,400 square feet of refined, design-forward living. Featuring 5 bedrooms, 4 full baths, and 2 half baths, this exceptional residence blends Scandinavian-modern architecture with elevated finishes and seamless indoor-outdoor living. Perfectly sited on a private 0.73-acre lot backing to trees and protected conservancy space , the home offers beautiful sunrises, privacy, and a serene natural backdrop, complemented by an oversized side-load three-car garage with epoxy flooring. Inside, soaring 10-foot ceilings, expansive 8-foot windows and doors, and a dramatic two-story family room with a wall of glass and Vermont Castings linear fireplace flanked by custom recessed built-in nichescreate a light-filled architectural centerpiece, while wide-plank European oak flooring runs throughout all three levels with no carpet, enhanced by contemporary oak staircases and recessed designer handrails. The European-inspired gourmet kitchen is a true showpiece , featuring white European cabinetry, a striking natural quartzite waterfall island, Viking appliances including a five-burner gas cooktop, wall oven, microwave, refrigerator, and a Miele dishwasher, along with a butlers pantry/coffee bar with beverage center and an oversized walk-in pantry with solid shelvingperfect for effortless entertaining. The kitchen flows seamlessly into the morning room and opens directly to the family room, while a set of French doors extends the living space outdoors to the covered rear deck spanning the entire rear of the home and complete with three ceiling fans, overlooking the extended paver patio with convenient stairs connecting the deck to the patio below. A separate formal dining room with designer lighting provides an elegant space for hosting and entertaining. The main-level primary suite offers a luxurious retreat with a massive custom walk-in closet and a spa-like bath featuring dual his-and-her floating vanities with quartz countertops, a freestanding Victoria + Albert soaking tub , an oversized frameless glass shower with dual showerheads and built-in seat, and designer tilework throughout. The main level also features a private home office , a versatile family center ideal for a second office or homeschoolingcomplete with quartzite countertopsand a beautifully designed mudroom and laundry area featuring custom cabinetry, a sink, and a separate designer granite islandthoughtfully designed for everyday functionality. Upstairs, three spacious bedrooms include one en-suite, while the others share a Jack-and-Jill bath, all with large walk-in closets and custom shelving. The fully finished walk-out lower level is designed for elevated living and entertaining , featuring an expansive recreation and lounge space with a natural quartzite island, full refrigerator, and custom cabinetry, opening to the paver patio for effortless indoor-outdoor flow. This level also includes a private guest suite with full bath, an additional half bath, a professional-grade gym with two large closets, a large finished walk-in storage room with built-in shelving, and an additional storage area for added flexibility and organization. From the moment you arrive, the stone porch, paver walkway, and extensive professional landscaping set the tone. Additional upgrades include a whole-house surge protector, irrigation system , designer lighting, upgraded hardware throughout, and custom closet systems in every space. Located in the award-winning Willowsford community, residents enjoy a resort-style lifestyle with pools, clubhouse, fitness center, scenic trails, lakes, fishing ponds , zip lines, treehouses, splash park, and the renowned Willowsford Farm , all just minutes to Dulles Airport, Metro, shopping & dining.