4245 Big Ranch Rd is a 4,136 square foot house on a 21.09 acre lot with 3 bedrooms and 3.5 bathrooms. - it last sold on July 23, 2009 for $1,000,000. Based on Redfin's Napa data, we estimate the home's value is $4,437,864.
Single-familyProperty Type
2000Year Built
21.09 acresLot Size
$1,073Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$4,437,864
$3.4M since sold in July 2009$163K since August
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 172.5% higher than the average sale price ($1.63M) 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
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
Property details
Interior
Bathroom Information
# of Full Baths: 3
# of 1/2 Baths: 1
Fireplace Information
# of Fireplaces: 4
Has Fireplace
Room Information
# of Rooms: 10
Exterior
Exterior Information
Construction Type: Wood
Building Construction Quality: Good
Property Information
Living Sq. Ft: 4,136
Building Sq. Ft: 4,136
# of Stories: 2
Parking & Garage Information
Parking Type: Attached Garage
Garage/Parking Sq. Ft: 1,004
Garage / Carport Type: Attached
Lot Information
# of Buildings: 1
Land Sq. Ft: 918,680
Acres: 21.09
Zoning Code: AP
County Use Description: CTR VINEYARD W/RES
Financial
Assessor Information
Assessment Year: 2025
Public facts
Beds: 3
Baths: 3.5
Sq. Ft.: 4,136
Stories: 2.0
Lot Size: 21.09 acres
Style: Single Family Residential
Year Built: 2000
Year Renovated: 2000
County: Napa County
APN: 36170041000
Home facts updated by county records on Jul 15, 2026
Around this home
Schools
Willow Elementary
Public K-5 • Assigned • 1.3mi
4/10
Redwood Middle School
Public 6-8 • Assigned • 2.3mi
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
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
10/10 Air Factor
23 unhealthy days expected this year, 23 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
91
59
85
57
76
51
61
44
56
41
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
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Oct
Nov
Dec
Sun exposure
In this area, properties receive around 11.8 hours in
June and 4.9 hours in December, placing it above the
U.S. average for solar exposure.
11.8 hrs
4.9 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$4.22M – $5.10M
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