Perched on over 227 lush acres of land in the Williamson Act, this luxurious estate offers a tranquil retreat unlike any other. Beyond the privately gated entrance, discover a custom-built single-level masterpiece boasting 5 bedrooms and 5.5 bathrooms, each thoughtfully designed with their own lavish en-suites. Spanning over 7,100 sf, the residence is adorned with Saltillo tile floors throughout, complemented by extraordinary custom mahogany and black walnut doors, cabinets, and baseboards showcasing a level of craftsmanship not often found today. The grandeur of this home is further accentuated by cathedral ceilings with clerestory windows, skylights, and a floor-to-ceiling wall of glass framing panoramic views of vineyards and rolling hills. Entertain with ease in the open-concept floor plan featuring a family room, living room, formal dining room, and a custom solid mahogany wet bar. A media room/den equipped with automatic blackout curtains adds a touch of cinematic luxury. Experience seamless indoor-outdoor living with glass doors opening from nearly every bedroom to the extensive back patio, where an in-ground pool and spa await amidst sweeping views. The primary suite features two opulent walk-in closets with floor-to-ceiling custom built-ins, a spa-like bathroom, and a double-sided fireplace connecting to an adjoining sitting room or meditation space. The heart of the home is the expansive chef's kitchen, featuring professional-grade Viking appliances. A center island with bar seating along with the bright and sunny second dining area create space perfect for gatherings. Nearby you'll find a walk-in pantry, laundry room, and access to the immaculate 3-car garage. For those with a penchant for hobbies or business ventures, a 4,000 sf airplane hangar with 3/4 bath showcases an area large enough for a full gym and large workshop with an additional loft for an office or storage. A separate building with a 2-car garage, additional workshop/storage space, and nearby RV parking adds to the property's versatility. Additionally, a 2-bedroom, 1-bath manufactured home with a separate gated entrance provides the perfect retreat for guests or groundskeeper's quarters. Indulge in the ultimate luxury lifestyle at this exceptional estate located just a few minutes from downtown Templeton, where every detail has been thoughtfully curated to exceed expectations.