Corporate Apartments. Discover the natural beauty of true wine country living at Montrachet: luxury apartment homes with lavish interiors surrounded by lush landscaping, vineyards, and dramatic views of the Sonoma-Napa Mountains and Atlas Peak. Montrachet offers the best in wine country luxury apartment living with gourmet dining, wine tasting, grocery and convenience shopping all within walking distance. Ideally located in the heart of the Napa Valley in the premier north Napa neighborhood of Big Ranch, Montrachet is everything that is Napa: luxury in a natural setting and the ability to celebrate wine, food, and the arts day in and day out.