This extraordinary single-story estate blends timeless architecture with refined modern living on a gated, level ¾-acre lot in one of Upper Happy Valley's most coveted and private settings. Thoughtfully designed with an emphasis on comfort, functionality, and sophisticated indoor-outdoor living, the property offers an exceptional lifestyle defined by elegance, effortless entertaining, and seamless flow throughout. Spanning approximately 5,300 square feet, the residence is richly appointed with soaring vaulted and beam ceilings, wide-plank walnut hardwood flooring, custom millwork and wainscoting, wide crown molding, designer finishes, multiple fireplaces, and expansive windows and glass doors that flood the home with natural light while connecting beautifully to the surrounding grounds. Designed for both everyday living and large-scale entertaining, the thoughtfully curated floor plan includes a grand formal dining room with adjacent wine cellar, spectacular light-filled great room, expansive library, executive office, gym, spacious bonus room, and a gourmet kitchen with premium appliances, custom cabinetry, generous prep and gathering spaces, and effortless flow to both indoor and outdoor entertaining areas. The main residence features 5 bedrooms, 4 full bathrooms, and 2 powder rooms. Privately situated on its own wing, the luxurious primary suite serves as a true retreat with a sitting area, spa-inspired bath, outdoor shower and soaking tub access, plus dedicated massage and yoga rooms. An additional ensuite guest suite with fireplace is also located on this wing, while two generously sized secondary ensuite bedrooms and their own family room/den occupy the opposite side of the home, creating a flexible layout ideal for families and guests alike. A detached pool house with full bathroom and sauna offers ideal flexibility for guests, wellness, or office use, while additional detached flex spaces provide versatility for a variety of needs. The outdoor experience is equally exceptional with Kentucky Bluestone patios, PebbleTec pool and spa, outdoor pavilion, built-in kitchen, fire pit, sports court, expansive play field, custom treehouse, mature gardens, raised planting beds, and fruit trees. Located in Lafayette's prestigious Upper Happy Valley neighborhood, this rare property offers a peaceful estate setting just minutes from downtown Lafayette, commute routes, Lafayette Reservoir, Oakwood Athletic Club, and top-rated schools.