Corner 103
Corner 103 is a Sonoma, California winery and tasting-room business specializing in wines made from grapes grown across Sonoma County.
Last updated August 26, 2026
Overview
Corner 103 is a winery based in Sonoma, California, whose name comes from the location of its public tasting room on the corner of a historic building in downtown Sonoma. The business combines wine production with an educational tasting experience centered on Sonoma County’s diverse American Viticultural Areas (AVAs). The winery is owned by Lloyd Davis. Before entering the wine business, Davis spent approximately three decades working in banking and finance in New York City. He later became involved with Viansa Winery, which he co-purchased in 2008. After selling his interest in Viansa, Davis established Corner 103 as his own winery venture. The available reference material does not specify the year in which Corner 103 was founded or when its first wines were released. Corner 103’s wines are sourced from multiple Sonoma County growing regions rather than being associated with a single vineyard area. The winery’s stated range includes fruit from Carneros, Sonoma Coast, Russian River Valley, Alexander Valley, Dry Creek Valley, Rockpile, and Sonoma Valley. This multi-AVA approach allows the tasting program to compare how soil, climate, elevation, and other growing conditions influence wine character within Sonoma County. The winery also produces a rosé sparkling wine made from a blend that includes Pinot Noir, Sémillon, Chardonnay, and Syrah. The tasting room operates from the historic Feed Store building in downtown Sonoma and is open to the public. Its hospitality format goes beyond a conventional wine flight: staff guide visitors through seven food-and-wine pairings featuring items such as charcuterie, local cheese, rillette, and other gourmet foods. Wines served during the experience represent different Sonoma County AVAs. Hosts explain the vineyards’ growing conditions and soils, as well as practical service topics including suitable glassware and serving temperature. Corner 103 is therefore positioned as a destination winery and wine-education experience as much as a bottle brand. Its identity rests on Sonoma County regional diversity, guided hospitality, seasonal food pairing, and the personal ownership of Davis. Publicly available source material does not establish a broader international distribution network, a parent company, a stock-market listing, or a detailed corporate structure.
History
Corner 103 developed from Lloyd Davis’s transition from finance into wine. Davis spent about 30 years in banking and finance in New York City before becoming involved in winery ownership. In 2008, he co-purchased Viansa Winery. After selling Viansa, he pursued an independent winery project under the Corner 103 name. The available sources do not provide a precise founding date, acquisition date, or first-vintage date for Corner 103. The winery takes its name from the location of its tasting room in downtown Sonoma. The room occupies part of the historic Feed Store building, and its location on a corner is reflected in the brand name. Rather than presenting itself solely as a production facility, Corner 103 makes visitor hospitality a central part of its business model. The tasting room is open to the public and uses guided pairings to introduce guests to both the wines and the agricultural distinctions among Sonoma County’s wine regions. Corner 103’s production is connected to several Sonoma County AVAs. Its wines draw from Carneros, Sonoma Coast, Russian River Valley, Alexander Valley, Dry Creek Valley, Rockpile, and Sonoma Valley. This broad sourcing footprint supports a comparative tasting format in which visitors can consider how different vineyard environments affect the resulting wines. The winery also makes a rosé sparkling wine using Pinot Noir, Sémillon, Chardonnay, and Syrah. The tasting experience pairs seven wines or wine presentations with seasonal foods, including charcuterie, local cheese, rillette, and other gourmet products. Staff discuss vineyard soils and growing conditions, and they provide instruction on glassware and serving temperature. This educational approach distinguishes the business from a retail-only wine label and connects the brand to Sonoma’s tourism and tasting-room economy. Publicly available reference material identifies Davis as the owner but does not describe a parent company, public listing, major corporate transaction involving Corner 103, or international operating footprint. No documented scandals, lawsuits, recalls, campaigns, or leadership changes are identified in the supplied sources.
- 2008Lloyd Davis co-purchases Viansa Winery
Before establishing Corner 103, Lloyd Davis became a co-owner of Viansa Winery in 2008, marking a significant step in his transition from finance into the wine industry.
- Corner 103 is established in Sonoma
After selling Viansa, Lloyd Davis started Corner 103 as his own winery. The available source does not state the establishment year.
- Downtown Sonoma tasting room operates from the historic Feed Store building
Corner 103 developed a public tasting room in the historic Feed Store building in downtown Sonoma, linking the brand’s name and visitor experience to its corner location.
Products and positioning
A Sonoma winery and destination tasting room focused on multi-AVA wine discovery, guided education, and seasonal food pairing.
Sonoma County still winesWine
Corner 103 produces wines from grapes associated with several Sonoma County AVAs, including Carneros, Sonoma Coast, Russian River Valley, Alexander Valley, Dry Creek Valley, Rockpile, and Sonoma Valley. The range is presented as an exploration of regional differences rather than as a single-appellation portfolio.
Rosé sparkling wineSparkling wine
Corner 103 makes a rosé sparkling wine using a blend of Pinot Noir, Sémillon, Chardonnay, and Syrah. The product is part of the winery’s broader Sonoma-focused portfolio and is served within its tasting program.
Seven food-and-wine pairingTasting experience
The tasting room offers a guided sequence of seven food-and-wine pairings. Seasonal foods may include charcuterie, local cheese, rillette, and other gourmet items, while staff explain vineyard conditions, soils, glassware, and serving temperatures.
Flagship businesses
- Seven-course food-and-wine pairing tasting
- Rosé sparkling wine made with Pinot Noir, Sémillon, Chardonnay, and Syrah
Leadership
| Name | Title | Tenure |
|---|---|---|
| Lloyd Davis | Owner | — |
Sources
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