Bartholomew Park Winery

Bartholomew Park Winery is a winery in Sonoma, California, situated on a property with several layers of regional history. The site was associated with Agoston Haraszthy's Buena Vista Winery, one of the early influential wine enterprises in Sonoma. It later served as the location of Sonoma Valley Hospital during the twentieth century, before being returned to wine production and hospitality use. Frank Bartholomew purchased the property in 1941. He subsequently sold his share of Buena Vista Winery while retaining most of his surrounding vineyard land. In 1973, he opened Hacienda Wine Cellars on the property. That brand was later sold, and the former Hacienda building—originally constructed as the hospital—was redeveloped as Bartholomew Park Winery. The site also incorporated the Sonoma Valley Wine Museum, creating a visitor destination that connected the winery's operations with the area's viticultural and local history. Bartholomew Park's identity is therefore closely tied to place. Rather than being defined only by a broad national portfolio, the winery is associated with Sonoma Valley, the historic vineyard estate, and the adaptive reuse of buildings linked to the area's wine and civic development. Its current production is described as approximately 4,500 cases per year, indicating a relatively small-scale operation compared with large California wine companies. The winery focuses primarily on Cabernet Sauvignon and Merlot. These varieties place the brand within Sonoma Valley's premium still-wine segment and emphasize structured red wines suited to the region's established reputation for Cabernet-based production. The available reference material does not identify a wider current product portfolio, ownership structure, executive team, distribution footprint, or detailed sales channels. Bartholomew Park is best characterized as an active, place-based California winery whose principal distinction is the combination of historic setting, vineyard heritage, winery production, and visitor-oriented interpretation.

Bartholomew Park Winery occupies a site whose history reaches back to the early development of Sonoma's wine industry. The property was formerly associated with Buena Vista Winery, the enterprise established by Agoston Haraszthy and regarded as an important part of California's early commercial winemaking history. The same location later served a different community function as Sonoma Valley Hospital, reflecting the changing use of the property over time. In 1941, Frank Bartholomew acquired the site. Bartholomew eventually sold his portion of Buena Vista Winery but retained the majority of his vineyard land in the surrounding area. His continued connection with the land established the basis for later wine production under his own direction. Bartholomew opened Hacienda Wine Cellars on the property in 1973. The Hacienda brand was subsequently sold. After that transaction, the former Hacienda facility—also the former hospital building—was converted into Bartholomew Park Winery. By 1994, the redevelopment included the Sonoma Valley Wine Museum, linking commercial winemaking with an interpretive presentation of the region's viticultural history. The winery's modern identity developed from this adaptive reuse. The property became both a production site and a destination that presented the historical continuity between early Sonoma winemaking, local community use, and contemporary wine tourism. The name Bartholomew Park reflects Frank Bartholomew's association with the vineyards and estate rather than simply describing a newly established commercial label. The available reference material describes the winery as producing approximately 4,500 cases annually and concentrating primarily on Cabernet Sauvignon and Merlot. These details suggest a focused, relatively small-production model centered on Sonoma Valley red wines. No reliable source material supplied for this dossier establishes a precise founding date for Bartholomew Park Winery itself, a current owner, a parent company, named executives, or a detailed international distribution network. The documented history supports viewing the winery as an active Sonoma producer whose principal assets are its historic property, vineyard connection, wine production, and museum-linked visitor context.

• 1994

  The property becomes Bartholomew Park Winery

  [1]Bartholomew Park Wineryen.wikipedia.org

  After the Hacienda brand was sold, the former Hacienda building was converted into Bartholomew Park Winery and the Sonoma Valley Wine Museum.

• 1973

  Hacienda Wine Cellars opens

  [1]Bartholomew Park Wineryen.wikipedia.org

  Frank Bartholomew opened Hacienda Wine Cellars on the property, beginning a later phase of wine production at the historic site.

• 1941

  Frank Bartholomew acquires the property

  [1]Bartholomew Park Wineryen.wikipedia.org

  Frank Bartholomew purchased the property associated with the former Buena Vista Winery site and later retained most of the surrounding vineyard land after selling his portion of Buena Vista Winery.

A historically rooted Sonoma Valley winery focused primarily on Cabernet Sauvignon and Merlot, with a visitor experience connected to the property's wine, agricultural, and civic heritage.

• Red wine

  Cabernet Sauvignon

  Cabernet Sauvignon is one of Bartholomew Park Winery's principal wine focuses. The variety places the winery within Sonoma Valley's established premium red-wine tradition and represents a core expression of its production identity.

• Red wine

  Merlot

  Merlot is another primary focus of the winery. It forms part of the estate's core red-wine offering alongside Cabernet Sauvignon, although the supplied sources do not provide specific cuvée names, vintages, or production details.

1. 1Bartholomew Park Wineryen.wikipedia.org