The Kingsbury Vineyard, located in the Oak Knoll District of the Napa Valley, is the epitome of efficient farming. Spanning a total of 62 acres with approx. 52 under vine, this institutional-grade vineyard is set up to produce consistent production year after year. Planted between 2013 and 2014, the 43 acres of Petite Sirah and 8.5 acres of Viognier benefit from a massive 31 acre foot reservoir that's replenished by a state-of-the-art drain tile and sump system. Zoned AP, the property could support construction of an exceptional vineyard estate just outside of town.
Vacant landProperty Type
62.17 acresLot Size
$176,934Price/Acres
Listed by Mike Hansen•DRE #02143875• Sotheby's International Realty
•805-503-8552 (agent)
•mike.hansen@sothebys.realty (agent)
Listed by Harry Hansen•DRE #02437611• Sotheby's International Realty
As the MLS and public records start to fill up, we'll list the details here.
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Public record
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Vacant Land
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Napa County
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Last updated by owner on Jul 28, 2026.
AP
Agricultural Preserve District
The AP district classification is intended to be applied in the fertile valley and foothill areas of Napa County in which agriculture is and should continue to be the predominant land use, where uses incompatible to agriculture should be precluded and where the development of urban-type uses would be detrimental to the continuance of agriculture and the maintenance of open space which are economic and aesthetic attributes and assets of the county.
Permitted uses
Include but are not limited to:
Agriculture
Housing-Single unit
Housing-Senior
Housing-Other
Communications tower
Climate risks
1/10 Flood Factor
Minimal risk of a flood reaching the building in the next 30 years
4/10 Fire Factor
1% chance of being in a wildfire in next 30 years
5/10 Heat Factor
7 days above 96° expected this year, 15 days in 30 years
1/10 Wind Factor
Minimal risk of severe winds over next 30 years
9/10 Air Factor
16 unhealthy days expected this year, 17 days in 30 years
Provided by First Street
Historical weather
Napa, CA • 94558
Average low and high temperatures (°F)
59
39
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41
68
44
67
45
77
51
84
54
85
55
90
59
85
57
76
51
61
44
56
41
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Sun exposure
99/ 100
Exceptional sunlight
Sunscore
There appears to be minimal shading by surrounding buildings, terrain, and vegetation.
8.9 hrs
5.7 hrs
JuneDecember
Provided by Shadowmap
Redfin Estimate for 3091 Big Ranch Rd
$10,095,037
$905K under list price of $11.0M
Nearby comparable homes
The Redfin Estimate uses 6 recent nearby sales, priced between $757K to $1.2M.