Above the year-round flow of Mark West Creek in the coveted Mark West Springs corridor lies a rare 1.38 acre buildable estate parcel offering the opportunity to curate an extraordinary Sonoma County Wine Country lifestyle. Once home to a prominent local builder and his family prior to the 2017 Tubbs Fire, the property retains a substantial existing homesite, pool footprint, established septic infrastructure, and existing driveway access creating a compelling foundation for a custom estate residence, private retreat, or future legacy property. Mature natural surroundings, layered topography, and the tranquil presence of the creek below create a setting that feels both private and deeply connected to nature. The largely level homesite offers an exceptional canvas for a luxury custom home designed to maximize natural light, seamless indoor-outdoor living, and the surrounding landscape. Envision a striking Wine Country residence with expansive entertaining spaces, creek-view terraces, outdoor pavilions, private pathways, and a reimagined resort-style wellness terrace or infinity-edge pool overlooking the trees and creek below. Ideal as either a full-time residence or sophisticated Bay Area weekend getaway, the property offers the rare combination of privacy, accessibility, and established infrastructure in one of Sonoma County's most desirable natural settings. Imagine slow mornings with coffee overlooking the creek, sun-drenched afternoons by the pool, intimate evenings under the stars, and weekends immersed in the quintessential Wine Country lifestyle world-class wineries, celebrated dining, scenic golf courses, hiking trails, and unforgettable experiences just moments away. Conveniently located near the Charles M. Schulz-Sonoma County Airport and approx. 90 minutes from San Francisco and Oakland International Airport, the property offers serene seclusion without sacrificing convenience. Its location provides easy access to the charm and amenities of celebrated Wine Country destinations including Healdsburg, Sonoma, and nearby Napa Valley. Buildable creekside estate parcels with usable acreage, existing infrastructure, and this level of natural beauty are increasingly rare in Sonoma County Wine Country an exceptional opportunity to create a home and lifestyle that feels distinctly your own.