Set within the highly regarded Willow Creek AVA, this exceptional estate spans 63.95 acres, including approximately 31 acres of established certified organic vineyard under the Williamson Act, offering agricultural value and long term land stewardship. The 3,150 sq. ft. residence, originally built in 1978 and thoughtfully remodeled in 2023, maintains its authentic character while enhancing modern comfort and functionality. The home features two primary suites plus a loft. The primary suite includes dual en suite baths, providing separation and privacy, with three total bathrooms throughout. Open concept living areas seamlessly connect the kitchen, dining, and great room, while expansive sliding doors lead to a front patio and rear deck overlooking Sheep Camp Creek, creating effortless indoor outdoor living. Surrounded by vineyard rows, mature oaks, and natural landscape, the property offers a true wine country setting. The vineyard includes 13 varietals Bourboulenc, Cabernet Sauvignon, Cinsault, Counoise, Grenache, Grenache Blanc, Mourvdre, Petite Sirah, Picpoul Blanc, Syrah, Vaccarsse, Vermentino, and Zinfandel and achieved California Certified Organic status through CCOF in 2022. Infrastructure includes the original 1,800 sq. ft. Mastantuono winery building, a 1,100 sq. ft. secondary structure, 50' x 36' pole barn, 32' x 40' metal equipment building, and an owned 14.5 KW solar system installed in 2020 and expanded in 2024. Water resources include an approximate +/ 24 GPM well supported by four storage tanks totaling approximately 22,500 gallons. Ideal as a boutique wine operation, private vineyard retreat, or legacy holding, this offering combines productive acreage, established infrastructure, and Central Coast lifestyle appeal.