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set on approximately 227 private acres in the heart of knights valley, ghost donkey ranch is a rare architectural estate where modern design and natural beauty exist in complete harmony. designed by internationally recognized architects including tom kundig, adam gordon, and bjarke ingels group , the property blends a refined modernist farmhouse aesthetic with the authenticity of a working wagyu cattle ranch. expansive glass walls open the home to sweeping views of mount st. helena, surrounding pastureland, oak groves, and rolling hillsides, creating a seamless indoor-outdoor living experience. the estate offers exceptional privacy while remaining moments from the wineries, resorts, and dining of calistoga and healdsburg. amenities include multiple guest accommodations, a dramatic pool pavilion, extensive outdoor entertaining spaces, and a collector-focused motor court and garage concept designed for automotive enthusiasts. a truly one-of-a-kind northern california ranch estate that celebrates architecture, land stewardship, and elevated country living.