Welcome to this custom built 7 bedroom, 7 full and 4 half bath French inspired Chateau situated atop the sought after Rio Vista community in Mahwah with stunning views of the Ramapo Valley. No expense was spared in this approximately 20,000 square foot home crafted with attention to detail and using only the highest quality finishes throughout, including marble, stone and Brazilian Cherry wood. Enter through the 2-story foyer to find formal living and dining rooms, a great room, library, Chef's gourmet eat-in kitchen, family room, sun room and so much more. This magnificent estate is also perfect for entertaining with a full, finished lower level that features a ballroom, second kitchen, exercise room, a 12-person home theater, billiard room, wet bar and a guest bedroom suite. The private, meticulously landscaped backyard was made for relaxation with in-ground pool, jacuzzi, a fire pit, and covered patio. This home is truly a must see!