
The Discovery
A Muddy Walk, A Hidden World

We’d been visiting Napa Valley for years, learning about its history, wines, and appellations. We were fascinated by what it takes to make a truly great wine – the soils and microclimates, the meticulous farming, the hundreds of decisions that go into the winemaking process. Inevitably, what began as an interest became a passion, and we found ourselves looking for property here.
It was a cold, wet day in February 2012 when we first visited this site in the Diamond Mountain District. The mud was thick and the land was overgrown and neglected; the view of Mt. St. Helena was obstructed. The vineyard had been overrun with deer, and the 19th-century barn and outbuildings were in shambles. The old Victorian home and schoolhouse were a patchwork of make-shift renovations. The challenges seemed nearly insurmountable, but as we walked the property, the place and its history moved us. Tucked up on the north side of Diamond Mountain, the site was secluded, intimate and breathtakingly beautiful. We loved the feeling of the wind through the tall redwood forest. And the smell of that soil, the promise that it held.
Restoration & First Harvest
Old Beams, Old Vines, New Vision



When we became the owners of what would become Theorem Vineyards, we soon learned that the property housed one of the most significant collections of historical buildings in Napa Valley. The site had once been a working farm with livestock and multiple crops. It also was home to one of the oldest schoolhouses in the area. Determined to honor the property’s historical significance we went to work. We restored the old Victorian home, the schoolhouse, and the Long Barn that once served as the farm’s chicken-coop. With the considerable expertise of the visionary architect Richard Beard, who immediately recognized the architectural significance of the buildings, we peeled back the layers of neglect. We restored and preserved the original character of the structures while bringing them up to modern standards. We saved what we could, and re-purposed every piece of redwood we found.
The vineyard was another puzzle. Originally planted in 1985, the vines had been stripped of most of their fruit by deer. As that first harvest approached in 2012, we briefly thought about tearing the vines out. But our former Winemaker, Thomas Rivers Brown, recognized the superb quality of the grapes. He convinced us to let him pick the scant 1.2 tons of Cabernet Sauvignon that remained. That fruit became our first vintage of Theorem Vineyards Voir Dire, our flagship Cabernet Sauvignon. Since then, we have preserved this old block of Cabernet Sauvignon, and Voir Dire continues to be made from these remarkable old vines. The rest of the vineyard has been reconfigured and replanted by famed Napa Vineyard Manager Josh Clark, and new blocks have been planted as well.

“Syrah isn’t polite—and that’s the point. Aromatics, chew, and a little wildness. We’re obsessed.” — Kisha Itkin, Founder & CEO

Tasting Notes
Complex
& Captivating
A landmark Cabernet since 1985.
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The Wine That Started It All
2012 Voir Dire inspired Theorem’s founding.
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Diamond Mountain Terroir
Volcanic soils, morning sun, afternoon breeze.
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Legacy Block (1985)
Original estate vines with deep roots and history.
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100% Cabernet Sauvignon
Pure, unblended expression of the site.



Beyond the Vines, a Story Unfolds
Join us where time slows, and truth is poured.