402 River Rd is a 1,284 square foot house on a 8,400 square foot lot with 4 bedrooms and 1 bathroom. - it last sold on April 30, 1999 for $195,000. Based on Redfin's Geyserville data, we estimate the home's value is $730,895.
Single-familyProperty Type
1894Year Built
8,400 sq ftLot Size
$569Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$730,895
$536K since sold in April 1999$12K since August
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 8.5% lower than the average sale price ($799K) 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.
Permits
Jun 11, 2016 • Final
Building history record
Perform an electrical service upgrade.
Electrical
Permit history is from public records and may be incomplete or inaccurate. Redfin and its agents make no representations about the property condition or permit status. Buyers should independently verify all information.
Property details
Interior
Bathroom Information
# of Full Baths: 1
Heating & Cooling
Heating Type: Wall Furnace
Room Information
# of Rooms: 6
Exterior
Exterior Information
Physical Condition: Good
Building Style Type: L-Shape
Construction Type: Wood/Steel
Building Construction Quality: Average
Property Information
Subdivision Name: C B MARTINS ADD
Living Sq. Ft: 1,284
Ground Floor Sq. Ft: 1,284
Building Sq. Ft: 1,284
# of Stories: 1
Legal Description: MAP B4 45
Parking & Garage Information
# of Parking Spaces: 2
Parking Type: Detached Garage
Garage/Parking Sq. Ft: 504
Garage / Carport Type: Detached
Lot Information
# of Buildings: 1
Land Sq. Ft: 8,400
Legal Lot Number: 3
Legal Block Number: 4
Acres: 0.1928
Zoning Code: AR1
County Use Description: SINGLE FAM DWELLING
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 4
Baths: 1.0
Sq. Ft.: 1,284
Stories: 1.0
Lot Size: 8,400 square feet
Style: Single Family Residential
Year Built: 1894
Year Renovated: 1958
County: Sonoma County
APN: 140120018000
Home facts updated by county records on Aug 13, 2026
Around this home
Schools
Geyserville Elementary School
Public K-5 • Assigned • 0.6mi
3/10
Geyserville New Tech Academy
Public 6-12 • Assigned • 0.9mi
4/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Climate risks
7/10 Flood Factor
Estimated 73-81% chance of a flood reaching the building in the next 30 years
4/10 Fire Factor
2% chance of being in a wildfire in next 30 years
5/10 Heat Factor
7 days above 97° expected this year, 16 days in 30 years
1/10 Wind Factor
Minimal risk of severe winds over next 30 years
9/10 Air Factor
20 unhealthy days expected this year, 21 days in 30 years
Provided by First Street
Historical weather
Geyserville, CA • 95441
Average low and high temperatures (°F)
57
43
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44
64
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46
72
51
78
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78
54
85
58
80
57
72
54
58
46
55
44
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
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Dec
Sun exposure
In this area, properties receive around 11.1 hours in
June and 4.9 hours in December, placing it above the
U.S. average for solar exposure.
11.1 hrs
4.9 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$695,000 – $841,000
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