Spectacular, custom Potomac River retreat on almost 6 gently sloping acres located at the end of a cul-de-sac of only four homes adjacent to coveted Falcon Ridge. First time on the market and only 11 years young, 9884 River Chase was designed & built for its owners by notable builder Jim Kennerknecht and acclaimed Monarch Custom Homes to exacting standards with no detail overlooked. Spanning four deceivingly large yet well-scaled levels, this home incorporates over 6,500SF of finished living space and more than 2,000 of unfinished space, offering more opportunity for its new owner however as is proves to be more than substantial. Carolina fieldstone welcomes visitors through an impressive center hall with large public rooms, hand hewn hardwood floors, high ceilings, custom casings, built-ins, deep crown/baseboard mouldings, oversized windows and doors, and many more upgrades that are to be expected in an offering of this caliber. Gorgeous honed marble kitchen with an oversized single-slab island, adjacent pantry, butler's service bar & additional shelved food "closet" competes handedly with today's kitchens. Wall of windows & glass doors open to elevated patio above the rolling hills overlooking the Potomac & Maryland beyond. Stone hearth & wood-burning fireplace in large family room make for a cozy atmosphere in an otherwise substantial home. Two opposing main level offices are perfect for today's working needs. Upstairs are 3 large bedroom suites each with attached full baths, laundry room, the upper level of the 2-story library/den, and the enormous, rear-facing primary suite with two attached full, spa-like baths, two walk-in closets, and bedroom with FP (one of 4 total). Finished, large attic level - currently a game/play area - offers bedroom space, half bath (changeable to full), built-ins & large closets. Lowest level has impressive custom wine cellar with reclaimed wood door & shelving, bedroom, full bath, and 60' indoor freshwater lap pool with wall of sliding doors that open toward the loggia covered stone terrace overlooking the grassy, landscaped hills as they descend toward the water (with full ownership to 1' beyond the Potomac's shore). The RARE 2-level garage holds 5 vehicles (3 standard bays on main level; 1 back-to-front bay holds two on lower level) and includes a Tesla & additional car charging station...providing the auto collector's dream scenario. Westinghouse elevator serves all 4 levels, 4-zone HVAC, tankless water heaters, whole-home generator, multi-zoned irrigation, upgraded pool room dehumidifier, possible transferrable warranties (inquire within) makes this home convey almost like brand new. With a 10-minute drive to Great Falls Village, 20 minutes to Tysons, 25 minutes to Dulles International Airport, 30 minutes to Downtown Bethesda and 35 minutes to The Kennedy Center, this impressive offering in an idyllic, river-side setting is still convenient to most of Metropolitan Capital Region. This is a truly unique, once-in-a-lifetime opportunity. SHOWN BY APPOINTMENT.