Experience a world of unparalleled beauty, privacy and opportunity at this 637-acre ranch estate, just 5 miles from the Pacific Ocean. Nestled in a secluded San Luis Obispo valley and surrounded by other expansive ranches, this property combines breathtaking landscapes with exceptional amenities for agriculture, recreation, and luxury living. The ranch is in the Williamson Act and features 120 acres of hay and crops, 50 acres of avocado groves protected by extensive windbreaks, rolling oak-studded hills, and grazing pastures. Three wells, a 400,000-gallon reservoir, 2 large tank farms and a sophisticated irrigation system support year-round operations. At the heart of the ranch lies an over 7,400 sq. ft. beautifully built custom main residence completed in 2021. Designed for luxury and comfort, the home boasts 5 bedrooms plus an office, 6 bathrooms, expansive living spaces, tall ceilings and oversized doors, an incredible gourmet kitchen, a recreation room with a bar and pool room, an elevator, 3 fireplaces, attached 4 car garage with workshop and irreplaceable craftsmanship showcased throughout. Adjacent greenhouse, fruit orchards, and gardens surround the home, creating a serene oasis. Complementing the residence and supporting the ranch are several meticulously constructed outbuildings, including an over 11,000 sf insulated shop perfect for an indoor sport court or RV storage, a private airplane hangar with runway access, as well as a hay barn, working barn, and equipment barn, each fully equipped for agricultural and operational needs. Adding to the ranch's functionality is the original 1,500 sq. ft. 3-bedroom farmhouse, ideal for ranch hands or guest accommodations, offering charm and practicality to support daily operations. With ample infrastructure, and proximity to the coast, San Luis Obispo, and Cal Poly, this ranch offers unparalleled versatility-ideal for luxury living, farming, ranching, or aviation enthusiasts.