United States · San Luis Obispo

Daou Vineyards

Bordeaux-variety estate on a 2,200-foot hilltop in the Adelaida District of Paso Robles, founded in 2007 by Lebanese-born brothers Georges and Daniel Daou; Cabernet Sauvignon is the winery's core grape and Patrimony Cabernet Sauvignon is a listed wine.

The producer

Georges and Daniel Daou did not arrive at wine through family vineyards. They came through Beirut, through France, through an engineering degree at UC San Diego, and through Daou Systems, a healthcare information technology company they built and sold. In 2007, with the proceeds, they bought a 212-acre hilltop in the Adelaida District on the western edge of Paso Robles and planted Bordeaux varieties at 2,200 feet. The property already had a history: Dr. Stanley Hoffman had planted vines here in 1964 and built the first modern commercial winery in San Luis Obispo County between 1972 and 1975, with André Tchelistcheff consulting on the 1973 harvest. The Daou brothers restored that ground and built a range around what the elevation gives: marine air from the Templeton Gap cooling the vineyards each afternoon, calcareous clay limiting vine vigor, and diurnal swings wide enough to hold acidity through a warm California growing season.

The range runs from the Discovery Series, an everyday tier of approachable, fruit-forward Chardonnay and Cabernet Sauvignon drawn from across the Paso Robles appellation, through Estate and Reserve bottles sourced from DAOU Mountain, to Patrimony, a blend of 65% Cabernet Sauvignon and 35% Cabernet Franc from the estate's parcels, aged in oak for an extended period. In December 2023, Treasury Wine Estates acquired DAOU for approximately $900 million plus a $100 million earn-out. Daniel Daou remained as Chief Winemaker.

Known for

Cabernet Sauvignon and Bordeaux blends from the western Adelaida hills at high elevation

Notable facts

The story

The Rocket and the Hilltop

In the summer of 1982, a rocket struck the Daou family apartment in Beirut. Georges was ten years old and Daniel was nine. Both brothers were seriously injured. Their parents got the family out of Lebanon and eventually to France, where the boys continued their schooling. They arrived in California as young men, enrolled at UC San Diego to study engineering, graduated, and built a company together: Daou Systems, a healthcare information technology business that grew large enough to sell. In 2007, with the proceeds, they bought a 212-acre hilltop in Paso Robles and began putting vines in the ground. By December 2023, Treasury Wine Estates had paid approximately $900 million for what those vines became. The rocket, the engineering degree, the software sale, the hilltop: the arc is long and none of it looks inevitable from the other end.

The Rocket and the Hilltop

In the summer of 1982, a rocket struck the Daou family apartment in Beirut. Georges was ten years old and Daniel was nine. Both brothers were seriously injured. Their parents got the family out of Lebanon and eventually to France, where the boys continued their schooling. They arrived in California as young men, enrolled at UC San Diego to study engineering, graduated, and built a company together: Daou Systems, a healthcare information technology business that grew large enough to sell. In 2007, with the proceeds, they bought a 212-acre hilltop in Paso Robles and began putting vines in the ground. By December 2023, Treasury Wine Estates had paid approximately $900 million for what those vines became. The rocket, the engineering degree, the software sale, the hilltop: the arc is long and none of it looks inevitable from the other end.

From the atlas

DAOU Vineyards

At A Glance

The Producer

Georges and Daniel Daou did not come to wine through family vineyards or agricultural schooling. They came through Beirut, through France, through an engineering degree at UC San Diego, and through a healthcare software company they built and sold. In 2007, they bought a 212-acre hilltop in the Adelaida District on the western edge of Paso Robles and began planting Bordeaux varieties at 2,200 feet. The property had a history before them, but their bet was on the elevation.

DAOU Mountain sits high enough that marine air flowing inland through the Templeton Gap reaches the vineyard each afternoon, pulling temperatures down sharply after hot central California days. The brothers called that daily cooling the defining fact of their site, and they built a range around Cabernet Sauvignon grown in those conditions: calcareous clay soils, wide diurnal swings, and the kind of slow ripening that holds acidity and freshens dark fruit rather than softening it into jam.

The winery grew quickly. By December 2023, Treasury Wine Estates paid approximately $900 million for DAOU, with a further $100 million earn-out. Daniel remained as Chief Winemaker and Georges as co-founder. Sixteen years from first vintage to that transaction is a compressed arc.

Place

Paso Robles divides roughly along Highway 46. The eastern half is warmer, drier, and better suited to varieties that want heat and lenient winters. The western half, where the Adelaida District sits, is cooler. The Pacific Ocean lies about twenty-five miles to the west, and the Templeton Gap, a break in the coastal mountain range, allows marine air to funnel directly into the hills each afternoon. Temperatures can drop fifteen to twenty degrees between midday and evening.

DAOU Mountain climbs to 2,200 feet, which amplifies that cooling further. The vineyards catch the marine air earlier and hold it longer than lower sites in the same district. On labels, the appellation reads Paso Robles or Paso Robles Adelaida District depending on tier. The western Adelaida address on a Cabernet Sauvignon bottle indicates a different temperature regime than a Paso Robles wine sourced from the warmer, flatter eastern basin.

Soil And Site

The soils at DAOU Mountain are calcareous clay: chalky, calcium-rich, and moderately well-drained. Calcareous soils limit vine vigor naturally, which keeps yields lower and concentrates the fruit without forcing the winemaker to drop crop in the vineyard. The clay fraction retains some moisture through dry summers, which helps the vines avoid heat stress at elevation without irrigation pulling them off the hillside character.

The historic Hoffman Mountain Ranch parcels, which DAOU absorbed when they bought the property, sit at a separate elevation band of 1,400 to 1,700 feet. Those parcels are distinct from the summit vineyard and represent an older layer of Adelaida planting history. The main DAOU estate and the winery building occupy the higher ground at 2,200 feet.

Story

In the early 1970s, a physician named Dr. Stanley Hoffman planted vines on this hillside and built what became the first modern commercial winery in San Luis Obispo County after Prohibition. The winery buildings went up between 1972 and 1975. In 1973, Hoffman hired André Tchelistcheff to consult on the harvest. Tchelistcheff had spent decades shaping Beaulieu Vineyard in Napa and had advised producers across California; his presence on the Adelaida hills in 1973 put the area on the California wine map a generation before Paso Robles became a recognised name.

The Daou brothers acquired the property in 2007 and restored it. What they inherited was not a blank hilltop but ground that Tchelistcheff had walked, soils that Hoffman had already identified as worth planting, and a vineyard history reaching back to 1964. Georges and Daniel had grown up far from here, but the land they chose had already been argued over by people who understood it.

Their own story ran in parallel. The two brothers grew up in Beirut, trained as engineers in California, built a healthcare information technology company called Daou Systems, and sold it. The wine venture came after that exit, funded by the tech sale, and driven by what Daniel Daou described as a long personal attachment to wine going back to the family's time in France after leaving Lebanon. That sequence, engineering discipline applied to a vine-growing problem on a precise piece of ground, shaped how DAOU approached both the vineyard and the range.

Vineyards And Cellar

The estate plants Bordeaux varieties: Cabernet Sauvignon, Cabernet Franc, Merlot, Petit Verdot, and Malbec. The calcareous clay soils and the diurnal temperature swing at 2,200 feet are the two conditions the team works with in the vineyard rather than against. Cooler nights after warm days extend the ripening window and allow the grapes to develop colour and tannin without losing the acidity that keeps the wines from going flat.

In the cellar, the range tiers receive different treatments. Entry-tier Discovery bottles are made for early approachability: fruit-forward, full-bodied, and ready to drink young. Patrimony blends 65% Cabernet Sauvignon with 35% Cabernet Franc and receives extended oak ageing. The Cabernet Franc addition lifts the aromatic register and softens the edge of the tannin without reducing the wine's ability to develop in bottle.

Wines

The range has three tiers, each with a distinct price point and sourcing level.

The Discovery Series draws from across the Paso Robles appellation and covers Chardonnay, Cabernet Sauvignon, and blends. These are everyday bottles: full-bodied, fruit-forward, and approachable from release. The Discovery Chardonnay brings pineapple, pear, and Granny Smith apple on the nose, with a palate of peach, mango, kiwi, and mineral-edged stone fruit. Medium acidity, full body, a dry finish that lingers with tropical and nut notes.

The Estate and Reserve tier steps up to single-estate fruit from DAOU Mountain. The Reserve Chardonnay carries more concentration and sharper acidity than the Discovery. The Reserve Cabernet Sauvignon pulls from older-vine parcels on calcareous clay and shows darker fruit and more grip than the entry bottles. These wines need a year or two after release.

Patrimony contains 65% Cabernet Sauvignon and 35% Cabernet Franc, from the estate's parcels, aged in oak for an extended period. The blend is fixed in its proportions, built to hold the aromatic complexity of the Franc alongside the weight of the Sauvignon. Prices sit in the ultra-premium California Cabernet range.

In The Glass

DAOU wines open differently across the three tiers, but the Adelaida signature runs through all of them: a freshness in the finish that the elevation and marine air provide.

The Discovery Chardonnay rises from the glass with tropical and orchard fruit, pineapple and pear leading, with honeysuckle behind. In the mouth, the fruit stays generous: peach and mango forward, with a mineral thread running through the stone fruit and a clean acid line that keeps the full body from feeling heavy. The finish is dry, with a lingering note of toasted nut and tropical fruit.

The Patrimony Cabernet Sauvignon is a different animal. Dark cherry and blackcurrant dominate the nose, with the Cabernet Franc adding violet and a faint herbal note that prevents the wine from reading as monolithic. On the palate, the tannin is firm but even: calcareous clay and cooler growing conditions at elevation keep the texture from turning coarse. The oak is present, particularly in younger vintages, but it integrates over time. The finish is long, with grip and a dark fruit persistence that justifies the extended ageing recommendation.

A Bottle To Understand It

Patrimony Cabernet Sauvignon is 65% Cabernet Sauvignon and 35% Cabernet Franc from the estate's parcels at 2,200 feet, aged in oak until the two varieties have woven together. In the glass, dark cherry and blackcurrant from the Sauvignon, violet and a faint herbal lift from the Franc, firm even tannin from the calcareous clay, and a finish long enough to track the cooling influence of the Templeton Gap in the way the wine stays fresh rather than warm. This is what the western Adelaida hills, at their highest point, produce when the winemaker does not rush the process.

Anecdote

In the summer of 1982, a rocket struck the Daou family apartment in Beirut. Georges was ten years old and Daniel was nine. Both brothers were seriously injured. Their parents got the family out of Lebanon and eventually to France, where the boys continued their schooling. They arrived in California as young men, enrolled at UC San Diego to study engineering, graduated, and built a company together: Daou Systems, a healthcare information technology business that grew large enough to sell. In 2007, with the proceeds, they bought a 212-acre hilltop in Paso Robles and began putting vines in the ground. By December 2023, Treasury Wine Estates had paid approximately $900 million for what those vines became. The rocket, the engineering degree, the software sale, the hilltop: the arc is long and none of it looks inevitable from the other end.

Final Word

DAOU is a western Paso Robles Cabernet estate built on a specific bet: that 2,200-foot elevation, marine air, and calcareous clay could produce California Cabernet Sauvignon that holds freshness alongside weight. The range runs from accessible daily bottles to Patrimony, and the founding story runs from Beirut to a nine-figure acquisition in sixteen years. Daniel Daou still makes the wine.

Sources

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