Set on an 11,443-square-foot lot on a quiet, tree-lined street in coveted Kenwood Park, 6900 Millwood Road is an exceptional custom residence by Castlewood, distinguished by its craftsmanship, thoughtful proportions, quality materials, and architectural detailing. Offering nearly 8,000 square feet of finished living space, the home features six bedrooms, each with an en-suite bath and walk-in closet, along with an impressive collection of dedicated living, work, fitness, and outdoor spaces. A welcoming foyer introduces refined interiors with hardwood floors, crown moldings, and custom millwork. At the heart of the home is an expansive gourmet kitchen anchored by an oversized island and second peninsula, with two sinks, two concealed dishwashers, Sub-Zero refrigeration, wall oven and microwave, and a Wolf range beneath a substantial vent hood. An informal dining area with built-in banquette creates a relaxed everyday setting. The kitchen opens to the family room, where a dramatic double-sided gas fireplace serves as a focal point. Sliding glass doors lead to a covered and screened three-season porch with built-in speakers, its own gas fireplace, and direct access to the backyard. On the opposite side of the fireplace, a dedicated entertainment and billiards room with built-in bar and beverage center can also serve as an exceptional home office. A butler's pantry and walk-in pantry connect the kitchen to the formal dining room, while a gracious living room provides another beautifully proportioned entertaining space. Two powder rooms and a mudroom with built-ins, coat closet, and laundry hookups complete the main level. Upstairs, a spacious loft opens to a private balcony. Three secondary bedroom suites each offer a private bath, walk-in closet, and dedicated study nook. The primary suite includes tray ceilings, balcony access, two custom walk-in closets, and a spa-like bath with dual vanities, oversized walk-in shower, soaking tub, and private water closet. A full second-floor laundry room adds convenience. The bright walk-out lower level features direct outdoor access from multiple rooms, a recreation room with wet bar, fitness room, and private home office with built-ins and its own exterior entrance. Also on this level is a true private accessory dwelling unit with its own kitchenette, living area, bedroom, full bath, laundry, and closet-ideal for extended family, guests, an au pair, or long-term visitors. Outside, the home is exceptionally well positioned on its lot, creating a remarkably flat and private backyard framed by mature trees. The screened porch, covered patio, and expansive lawn provide generous space for entertaining, play, and everyday outdoor living. The Kenwood Park setting is equally compelling, with close proximity to Walt Whitman High School and other area schools, as well as the shopping, dining, and amenities of Bethesda. Mature trees, quiet streets, and an established residential feel give this location enduring appeal.