21055 River Rd is a 678 square foot house on a 1.54 acre lot with 2 bedrooms and 1 bathroom. Based on Redfin's Geyserville data, we estimate the home's value is $644,326.
Single-familyProperty Type
1910Year Built
1.54 acresLot Size
$950Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$644,326
$5,000 since August
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 14% lower than the average sale price ($750K) of 6 comparable homes.
As the MLS and public records start to fill up, we'll list the details here.
Year
Property tax
Land + Additions
Assessment*
2025
$485 (+1.3%)
$11,472 + $15,725
$27,197
2024
$479 (+1.6%)
$11,248 + $15,417
$26,665
2023
$471 (+1.5%)
$11,028 + $15,115
$26,143
2022
$464 (+0.8%)
$10,812 + $14,819
$25,631
2021
$461 (+2.9%)
$10,600 + $14,529
$25,129
2020
$448 (+1.2%)
$10,393 + $14,245
$24,638
2019
$442 (+1.3%)
$10,287 + $14,099
$24,386
2018
$437 (+1.1%)
$10,086 + $13,823
$23,909
2017
$432 (+7.1%)
$9,696 + $13,287
$22,983
2015
$403 (+1.3%)
$9,506 + $13,027
$22,533
2014
$398 (+0.2%)
$9,181 + $12,581
$21,762
2013
$397 (+1.2%)
$9,181 + $12,581
$21,762
2012
$393 (+1.1%)
$9,140 + $12,525
$21,665
2011
$388 (+0.2%)
$8,961 + $12,280
$21,241
2010
$388 (−0.5%)
$8,786 + $12,040
$20,826
2009
$390 (+1.0%)
$8,721 + $11,951
$20,672
2007
$386
$8,571 + $11,746
$20,317
Tax history for 21055 River Rd
Year
Property tax
Land + Additions
Assessment*
2025
$485 (+1.3%)
$11,472 + $15,725
$27,197
2024
$479 (+1.6%)
$11,248 + $15,417
$26,665
2023
$471 (+1.5%)
$11,028 + $15,115
$26,143
2022
$464 (+0.8%)
$10,812 + $14,819
$25,631
2021
$461 (+2.9%)
$10,600 + $14,529
$25,129
2020
$448 (+1.2%)
$10,393 + $14,245
$24,638
2019
$442 (+1.3%)
$10,287 + $14,099
$24,386
2018
$437 (+1.1%)
$10,086 + $13,823
$23,909
2017
$432 (+7.1%)
$9,696 + $13,287
$22,983
2015
$403 (+1.3%)
$9,506 + $13,027
$22,533
2014
$398 (+0.2%)
$9,181 + $12,581
$21,762
2013
$397 (+1.2%)
$9,181 + $12,581
$21,762
2012
$393 (+1.1%)
$9,140 + $12,525
$21,665
2011
$388 (+0.2%)
$8,961 + $12,280
$21,241
2010
$388 (−0.5%)
$8,786 + $12,040
$20,826
2009
$390 (+1.0%)
$8,721 + $11,951
$20,672
2007
$386
$8,571 + $11,746
$20,317
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Zoning and permits
Zoning
Permits
LIA B6 20
RC 50'
VOH
SR
Land Intensive Agriculture - B6 Combining District 20 Acres
The LIA zone: Enhances and protects lands best suited for permanent agricultural use and capable of relatively high production per acre of land; Implement the land intensive agriculture land use category of the general plan and the policies of the agricultural resources element; B6: To specify residential density and/or minimum parcel or lot size for a particular parcel, lot or area.
Zone overlays
Riparian Corridor Combining Zone
Valley Oak Habitat Combining District
Scenic Resources Combining District
Permitted uses
Include but are not limited to:
Greenhouse / nursery
Livestock production
Day care facility
Housing-Group
Housing-Single unit
Housing-Other
Agriculture
Agriculture-Cropland
Park & open space
Timberland
Feb 15, 2023 • Final
Building permit no plan check
Electrical
Feb 1, 2017 • Final
Building permit no plan check
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
Basement Information
Basement Sq. Ft: 200
Bathroom Information
# of Full Baths: 1
Room Information
# of Rooms: 4
Exterior
Exterior Information
Building Style Type: L-Shape
Construction Type: Wood/Steel
Building Construction Quality: Fair
Property Information
Subdivision Name: TZABACO RHO
Living Sq. Ft: 678
Ground Floor Sq. Ft: 678
Building Sq. Ft: 1,234
# of Stories: 1
Parking & Garage Information
Parking Type: Carport
Garage/Parking Sq. Ft: 1,200
Garage / Carport Type: Carport
Lot Information
# of Buildings: 1
Land Sq. Ft: 67,082
Acres: 1.54
Zoning Code: LIA20
County Use Description: RURAL RESID-1 RESID
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 2
Baths: 1.0
Sq. Ft.: 678
Stories: 1.0
Lot Size: 1.54 acres
Style: Single Family Residential
Year Built: 1910
Year Renovated: 1953
County: Sonoma County
APN: 140230021000
Home facts updated by county records on Aug 13, 2026
Around this home
Schools
Geyserville Elementary School
Public K-5 • Assigned • 1.1mi
3/10
Geyserville New Tech Academy
Public 6-12 • Assigned • 0.3mi
4/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Climate risks
3/10 Flood Factor
Estimated 10-14% 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
56
44
64
48
63
46
72
51
78
53
78
54
85
58
80
57
72
54
58
46
55
44
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
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
$613,000 – $741,000
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