$9,500,000
755 acres5 beds
$12,583 per acre (asking price ÷ reported acres)
Equestrian property
- Stable or stalls
- Vineyard
- Creek or spring
18450 Rockpile RdGeyserville, CA 95441
Listing courtesy of California Outdoor Properties · MyStateMLS #12031121
$6,950,000
$3,658 per acre: total asking price divided by the reported 1,900 acres. Not an appraisal or a bare-land value.
Ranch · MLS 11660312 · Listed 255 days ago (Feb 21, 2026)
Livestock and grazing · Orchard or vineyard · Equestrian · Farm and ranch details
For sale: Listed for sale and available according to the MyStateMLS feed.
In the heart of Northern California's revered Wine Country, where the refined elegance of Sonoma's viticultural heritage converges with the untamed grandeur of Mendocino's coastal highlands, the Mazzini Ranch emerges as an unparalleled jewel for the discerning high-end buyer. This contiguous 1,900+/- acre estate is not merely land-it's a canvas for visionary ambition, offering a rare blend of seclusion, sophistication, and strategic accessibility. Just a scenic 1.5-hour drive from the innovation hubs of San Francisco or a 2-hour escape from Silicon Valley's fast-paced ecosystem, the ranch delivers a ""world away"" sanctuary while remaining effortlessly connected to urban luxuries. Proximity to Charles M. Schulz Sonoma County Airport (STS)-a mere 30-minute drive-allows for seamless private jet arrivals, with Cloverdale's municipal airport nearby for even more discreet general aviation options. Ten minutes from Cloverdale and 20-25 minutes from Healdsburg, the epicenter of Sonoma's Michelin-starred dining scene and boutique wineries, this property invites you to trade boardrooms for breathtaking vistas without sacrificing ULTIMATE MULTI-GENERATIONAL SANCTUARY For the discerning visionary seeking to forge a private dynasty amid nature's splendor, Mazzini Ranch redefines the family compound. With the potential for 17 legal parcels through Certificates of Compliance, this vast expanse provides an extraordinary blank slate to craft a bespoke legacy estate tailored to elevated Development with Cutting-Edge Potential: Envision multiple ultra-luxury residences, each sited for absolute privacy and commanding 360-degree panoramas of rolling vineyards, redwoods, and the rugged Coast Range. Integrate smart-home technologies, helipad access, and high-speed fiber optics for a seamless blend of rustic retreat and connected haven-perfect for remote work sessions overlooking the valley or hosting elite gatherings.A Shared Heritage in Seclusion: Miles of private, impeccably maintained roads and trails connect these estates, creating a secure, gated enclave where generations can thrive independently yet unite for shared adventures. Build your family's narrative here, away from the public eye, in a setting that echoes the private ranches favored by luminaries and influential figures.A STORIED TERROIR: THE NEXT CHAPTER AWAITS YOUR VISION Rooted in early 20th-century heritage, the Mazzini Ranch (often referenced as Mazzoni in viticultural circles) was founded by the Mazzoni family and meticulously stewarded for decades by the Oltranti family since their acquisition in 1988. This land's agricultural pedigree is legendary, having supplied premium Zinfandel and Carignane grapes to the iconic Ridge Vineyards, crafting wines that have earned global acclaim for their depth and complexity. Join the ranks of Sonoma's celebrity vineyard owners-like Francis Ford Coppola, Guy Fieri, and John Lasseter-who have transformed similar properties into personal empires of the original vines thoughtfully removed, 200+/- acres of prime, cleared terrain now stand ready for reinvention into high-value ventures that align with sustainable luxury:Precision Viticulture for the Connoisseur: Replant with state-of-the-art, high-density clones optimized for the ranch's diverse microclimates-sun-drenched south-facing slopes ideal for bold reds, cooler northern exposures for crisp whites. Capitalize on Sonoma's booming wine market, potentially partnering with renowned winemakers for estate bottlings that rival the region's Agriculture and Regenerative Practices: Cultivate boutique olive groves yielding award-winning extra-virgin oils, heirloom stone fruit orchards, or organic specialty crops. Embrace regenerative farming to enhance soil health and biodiversity, appealing to eco-conscious buyers with carbon-sequestering Excellence and Premium Livestock Operations: The expansive level valleys and gently rolling meadows are primed for world-class equestrian facilities, complete with custom stables, arenas, and trails. Alternatively, establish a significant cattle ranch or sophisticated livestock operation focused on premium heritage breeds, blending high-value productivity with sustainable grazing practices and the timeless allure of ranch TOPOGRAPHY: A SYMPHONY OF OAKS, REDWOODS, AND DOUGLAS FIR FORESTS Mazzini Ranch unfolds as a living masterpiece of California's Coast Range ecology, transitioning from golden oak-studded woodlands and sun-kissed pastoral basins to dramatic high-elevation Diversity and Immersive Beauty: Wander through sun-dappled meadows alive with wildflowers in spring, ascend to rugged peaks offering unobstructed views of the Russian River Valley below, and descend into shaded canyons where redwoods tower like sentinels. This biodiversity not only captivates but also supports a thriving ecosystem, ideal for conservation-minded and Fir Forests: Nature's Cathedral: The northern slopes and deep ravines host majestic redwoods and Douglas firs, their canopies filtering light onto fern-lined paths and spring-fed streams that murmur year-round. These serene groves provide a meditative escape, evoking the tranquility sought by those fleeing urban Security for Enduring Legacy: In an era of climate resilience, the ranch boasts a robust 70+/- GPM well, multiple natural springs bubbling from the earth, and a picturesque year-round pond-ensuring abundant water for residences, agriculture, and recreation, even in dry seasons.A PRIVATE SPORTING & ADVENTURE PRESERVE FOR THE ELITE OUTDOORSMAN Transform Mazzini into your exclusive playground, rivaling the bespoke estates of Sonoma's high-profile Hunting in Managed Wilderness: Home to thriving populations of trophy Black-tailed deer, wild boar, and Rio Grande turkeys, the ranch offers premier fair-chase opportunities within a privately managed habitat. Ethical hunting programs can be tailored for family traditions or hosted Internal Arterial Network: Boundless Exploration: An extensive system of groomed roads and trails spans the property, from valley floors to remote ridgelines-perfect for equestrian expeditions, mountain biking, ATV adventures, or serene hikes. Install solar-powered charging stations to align with sustainable & RESIDENTIAL ASSETS: READY FOR IMMEDIATE ELEVATION Poised for instant enjoyment or as a launchpad for architectural grandeur, the ranch's existing improvements blend functionality with potential for opulent Ranch Headquarters: A charming 1,700+/- square-foot ranch-style home (2BR/2BA) near the main entrance serves as an operational hub or luxurious guest quarters, with room for expansion into a modernist Caretaker's House: A 1,200+/- square-foot secondary residence (2BR/2BA) offers premium accommodations for on-site management, staff, or VIP visitors, ensuring seamless estate Remote Sanctuary: A newly constructed custom cabin on the ranch's elevated ""back side"" delivers breathtaking panoramic views of layered mountains and profound canyons-an idyllic off-grid retreat for introspection, stargazing, or high-end glamping INVESTMENT & STEWARDSHIP: A VISIONARY'S PORTFOLIO17 Legal Parcels: Phased Luxury Development: Unlock immense value through subdivided estates, ideal for a multi-generational compound or selective sales to like-minded buyers, all while preserving the core's Potential with Fiscal Advantages: The ranch's biologically rich redwood and fir forests qualify for voluntary conservation easements, yielding substantial federal income and estate tax benefits. Safeguard the pristine viewshed and ecological treasures, aligning with the sustainable ethos prized by visionary Mazzini Ranch transcends mere ownership-it's an invitation to author the next century of a historic agricultural icon. For the high-end buyer, this is your opportunity to claim a legacy of unparalleled scale, where ambition meets nature's majesty in perfect harmony.
Description provided by the listing brokerage.
Listing-reported, not independently certified. These details come from the listing's own fields and description. Farms and Ranches has not inspected the property, measured acres, tested soil or water, or reviewed permits. Confirm everything with Jim Martin of California Outdoor Properties and the right professionals.
| Listed here as | RanchFarms and ranches: Listed by the MLS as a farm or ranch, or land with reported agricultural improvements such as barns, stables or fencing. |
|---|---|
| Why it qualifies | Agricultural use reported in the listing · How listings qualify |
| Reported use | Livestock and grazing, Orchard or vineyard, Equestrian |
| Total acreage | 1,900 acres (as reported) |
| Reported land breakdown | Not stated. Total acreage is not tillable or usable acreage; ask the agent and check the soil survey. |
| Home included | Yes, a home is reported |
Not reported here and never inferred: yields, income, stocking rates or carrying capacity, water rights, transferable permits, organic certification, equipment or livestock included in the sale, and whether a building can be used or a site built on. Report a wrong classification.
Facts are reported by the listing brokerage. Items not listed were not provided; that does not mean the property lacks them.
The pin is the listing's reported coordinates and may be approximate. It is not a parcel boundary, and no soil, flood, wetland or access conclusion should be drawn from it. See more listings in Cloverdale.
Changes observed by Farms and Ranches in MyStateMLS data since Oct 30, 2026. This is not a public-record sales history; MyStateMLS does not publish sold prices.
Listings of the same type in Sonoma County, priced within 40% of this listing ($4,170,000 to $9,730,000), newest first. Each one passes the same farm rules and display permissions on its own. See all matches
$9,500,000
755 acres5 beds
$12,583 per acre (asking price ÷ reported acres)
Equestrian property
Listing courtesy of California Outdoor Properties · MyStateMLS #12031121
Questions worth investigating for any farm or ranch purchase. They are not claims that this property has a problem or meets any condition.
Regional guidance for Sonoma County, CA. It describes the area, not this property: it does not say this land suits any crop or use.
Listing courtesy of California Outdoor Properties. Listing agent: Jim Martin. Co-listing agent: Brian White. Listings provided by MyStateMLS.
Listing last updated by the brokerage Nov 3, 2026, 12:25 AM UTC. Farms and Ranches last received MyStateMLS data Nov 3, 2026, 7:00 AM UTC. Information is deemed reliable but not guaranteed; verify all details with the listing agent.