di Rosa maintains a collection of approximately 1,600 works of art by Northern California artists including Robert Arneson, Bruce Conner, Jay DeFeo, Tony Labat, and William T. Wiley.

When Rene di Rosa bought the property, the land and stone winery had over the years fallen into disuse and disrepair.

Beginning with the purchase in 1960, he converted the stone winery structure into a house, adding interior rooms, doors, windows, and a bell tower.

The property encompasses multiple galleries and a sculpture meadow and is protected in perpetuity under the Napa County Land Trust.

She married Rene di Rosa in 1976 and continued making art while becoming deeply engaged in philanthropic endeavors in the Napa Valley.

Veronica was an active booster of Napa Valley's wines, music, and fine arts, and the author of several illustrated cookbooks.

While living near the burgeoning North Beach art community, he began to collect the works of emerging Bay Area artists.

In pursuit of this new endeavor, he enrolled in viticulture classes at the University of California at Davis and developed what would be lifelong friendships with many of the artists who have become the backbone of the di Rosa collection; artists such as Robert Arneson, Roy De Forest, Manuel Neri, and William T. Wiley were all art professors at Davis in the mid-1960s.

[11] The foundation that runs the di Rosa, along with former Executive Director Robert Sain, announced in July 2019 that they would sell most of the current collection of 1,600 works, but keep several hundred.