Willow Lake Ranch presents a rare opportunity to acquire approximately 174 acres across two separate legal parcels in the highly regarded Los Carneros region of Napa Valley. Offering scale, privacy, agricultural history, water resources, and significant estate potential, the property represents an increasingly hard-to-find combination in one of Napa Valley's most recognized wine-growing areas. Approximately 135.8 acres were previously planted to vineyard, providing a substantial agricultural footprint and strong potential for future vineyard redevelopment and replanting. Two reservoirs provide valuable water-storage infrastructure and further support the ranch's long-term agricultural use. An original farmhouse still stands on the property, marking an established residential setting and offering a compelling opportunity to create a new custom residence in its place. The homesite enjoys incredible views across the ranch and surrounding Carneros countryside, creating an exceptional setting for a private Napa Valley estate. One of the property's most significant attributes is its configuration across two separate legal parcels. Each parcel offers the opportunity for a residence, creating flexibility for a primary estate with a second home, a multi-generational family compound, or two distinct estate properties. The separate parcels also provide added flexibility for long-term ownership, estate planning, investment, or future disposition. Located in the Los Carneros region, Willow Lake Ranch combines substantial acreage, vineyard history, water resources, expansive views, and exceptional residential potential. Whether the vision is to establish a significant vineyard operation, create a private Napa Valley estate, or hold an irreplaceable agricultural property for the future, Willow Lake Ranch offers the setting and flexibility to bring that vision to life.
Los Carneros, located between Napa and Sonoma, is a rural and wine-country Napa neighborhood with rolling vineyard flats and bay-cooled breezes. The scene concentrates around the Carneros Highway (CA-12/121) and Duhig Road, where tasting rooms, farm stands, and low-slung winery buildings set a relaxed, agricultural rhythm. Domaine Carneros anchors the landscape with its hilltop chateau silhouette. Etude Wines adds a polished, modern counterpoint among the vines. Stanly Ranch, Auberge Resorts Collection brings a design-forward resort note that still reads as grounded in the fields and marsh edges. Architecture leans to barn-inspired forms, long driveways, and wide views toward the Mayacamas and the wetlands.
Provided by Walk Score and Local Logic
Property details
Exterior
Finance
Exterior features
Partial fencing
Year-round pond
Reservoir
Agricultural/residential, farm/ranch, horses allowed, and livestock zoning
Home design
Land
Agricultural
Utilities
Water available
Standard septic
Electricity available
HOA & community
No association
Electricity and solar
View estimated energy costs and solar savings for this home
As the MLS and public records start to fill up, we'll list the details here.
Public record
Public record
Zoning
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Style
Vacant Land
County
Napa County
APN
047-030-003-000
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Last updated by owner on Oct 16, 2026.
AW
Agricultural Watershed District
The AW district classification is intended to be applied in those areas of the county where the predominant use is agriculturally oriented, where watershed areas, reservoirs and floodplain tributaries are located, where development would adversely impact on all such uses, and where the protection of agriculture, watersheds and floodplain tributaries from fire, pollution and erosion is essential to the general health, safety and welfare.
Permitted uses
Include but are not limited to:
Agriculture
Housing-Single unit
Housing-Senior
Housing-Other
Office
Recreation
Communications tower
Climate risks
1/10 Flood Factor
Minimal risk of a flood reaching the building in the next 30 years
3/10 Fire Factor
0.15% chance of being in a wildfire in next 30 years
5/10 Heat Factor
7 days above 95° 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 • 94559
Average low and high temperatures (°F)
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39
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41
68
44
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45
77
51
84
54
87
56
91
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83
58
76
51
61
44
56
41
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Sun exposure
92/ 100
Exceptional sunlight
Sunscore
This home ranks in the top 20% for direct sun exposure in Napa. There appears to be minimal shading by surrounding buildings, terrain, and vegetation.
9.3 hrs
6.1 hrs
JuneDecember
Provided by Shadowmap
Redfin Estimate for 1002 Henry Rd
$4,862,402
$113K under list price of $4.98M
Nearby comparable homes
The Redfin Estimate uses 5 recent nearby sales, priced between $295K to $1.6M.