799 Conn Valley Rd is a 1,174 square foot vacant land on a 8.04 acre lot. Based on Redfin's Saint Helena data, we estimate the home's value is $14,155,796.
Vacant landProperty Type
2003Year Built
8.04 acresLot Size
$1,760,671Price/Acres
4 garage spacesParking
Source:Public Records
Redfin Estimate
$14,155,796
$1.5M since July
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 168.2% higher than the average sale price ($5.28M) of 6 comparable homes.
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Zoning
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
Property details
Interior
Fireplace Information
# of Fireplaces: 5
Has Fireplace
Exterior
Exterior Information
Construction Type: Wood
Property Information
Living Sq. Ft: 1,174
Building Sq. Ft: 1,174
# of Stories: 1
Parking & Garage Information
Parking Type: Attached Garage
Garage / Carport Type: Attached
Lot Information
# of Buildings: 1
Land Sq. Ft: 350,222
Acres: 8.04
County Use Description: RURAL RESID 5+ ACRES
Financial
Assessor Information
Assessment Year: 2025
Public facts
Beds: —
Baths: —
Sq. Ft.: 1,174
Stories: 1.0
Lot Size: 8.04 acres
Style: Vacant Land
Year Built: 2003
Year Renovated: —
County: Napa County
APN: 25070065000
Home facts updated by county records on Jul 15, 2026
Around this home
Schools
Saint Helena Elementary School
Public 3-5 • Assigned • 2.6mi
8/10
Robert Louis Stevenson Intermediate School
Public 6-8 • Assigned • 2.8mi
4/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Climate risks
1/10 Flood Factor
Minimal risk of a flood reaching the building in the next 30 years
7/10 Fire Factor
15% chance of being in a wildfire in next 30 years
4/10 Heat Factor
7 days above 99° expected this year, 15 days in 30 years
1/10 Wind Factor
Minimal risk of severe winds over next 30 years
10/10 Air Factor
22 unhealthy days expected this year, 22 days in 30 years
Provided by First Street
Historical weather
Saint Helena, CA • 94574
Average low and high temperatures (°F)
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41
67
44
66
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76
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83
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83
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88
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84
54
75
49
61
43
57
41
Jan
Feb
Mar
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May
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Aug
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Sun exposure
In this area, properties receive around 11.7 hours in
June and 4.9 hours in December, placing it above the
U.S. average for solar exposure.
11.7 hrs
4.9 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$13.45M – $16.28M
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