21938 Russian River Ave is a 1,261 square foot house on a 6,880 square foot lot with 2 bedrooms and 1 bathroom. Based on Redfin's Monte Rio data, we estimate the home's value is $496,762.
Single-familyProperty Type
1911Year Built
6,880 sq ftLot Size
$394Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$496,762
$2,000 since September
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 12.5% higher than the average sale price ($442K) 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
$902 (+4.5%)
$9,985 + $12,738
$22,723
2024
$863 (+1.3%)
$9,790 + $12,489
$22,279
2023
$852 (+1.8%)
$9,599 + $12,245
$21,844
2022
$837 (+0.7%)
$9,411 + $12,005
$21,416
2021
$831 (−6.4%)
$9,227 + $11,770
$20,997
2020
$888 (+8.5%)
$9,047 + $11,540
$20,587
2019
$818 (+35.3%)
$8,955 + $11,422
$20,377
2018
$605 (+1.7%)
$8,780 + $11,199
$19,979
2017
$595 (−3.6%)
$8,440 + $10,765
$19,205
2015
$617 (+0.8%)
$8,275 + $10,554
$18,829
2014
$612
$7,992 + $10,193
$18,185
2013
$611 (+4.5%)
$7,992 + $10,193
$18,185
2012
$585 (+0.7%)
$7,956 + $10,147
$18,103
2011
$581 (+0.4%)
$7,800 + $9,949
$17,749
2010
$579 (−0.2%)
$7,648 + $9,754
$17,402
2009
$580 (−7.3%)
$7,591 + $9,682
$17,273
2007
$625
$7,461 + $9,515
$16,976
Tax history for 21938 Russian River Ave
Year
Property tax
Land + Additions
Assessment*
2025
$902 (+4.5%)
$9,985 + $12,738
$22,723
2024
$863 (+1.3%)
$9,790 + $12,489
$22,279
2023
$852 (+1.8%)
$9,599 + $12,245
$21,844
2022
$837 (+0.7%)
$9,411 + $12,005
$21,416
2021
$831 (−6.4%)
$9,227 + $11,770
$20,997
2020
$888 (+8.5%)
$9,047 + $11,540
$20,587
2019
$818 (+35.3%)
$8,955 + $11,422
$20,377
2018
$605 (+1.7%)
$8,780 + $11,199
$19,979
2017
$595 (−3.6%)
$8,440 + $10,765
$19,205
2015
$617 (+0.8%)
$8,275 + $10,554
$18,829
2014
$612
$7,992 + $10,193
$18,185
2013
$611 (+4.5%)
$7,992 + $10,193
$18,185
2012
$585 (+0.7%)
$7,956 + $10,147
$18,103
2011
$581 (+0.4%)
$7,800 + $9,949
$17,749
2010
$579 (−0.2%)
$7,648 + $9,754
$17,402
2009
$580 (−7.3%)
$7,591 + $9,682
$17,273
2007
$625
$7,461 + $9,515
$16,976
*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 permit no plan check
Install new composition shingles on a single-family home.
Roofing
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
Fireplace Information
# of Fireplaces: 1
Has Fireplace
Room Information
# of Rooms: 3
Exterior
Exterior Information
Building Style Type: U-Shape
Construction Type: Wood/Steel
Building Construction Quality: Fair
Property Information
Living Sq. Ft: 1,261
Ground Floor Sq. Ft: 1,261
Building Sq. Ft: 1,261
# of Stories: 1
Lot Information
# of Buildings: 1
Land Sq. Ft: 6,880
Acres: 0.1579
Zoning Code: RR1
County Use Description: SINGLE FAM DWELLING
Location Information
Parcel Location Influence: River
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 2
Baths: 1.0
Sq. Ft.: 1,261
Stories: 1.0
Lot Size: 6,880 square feet
Style: Single Family Residential
Year Built: 1911
Year Renovated: 1918
County: Sonoma County
APN: 095041006000
Home facts updated by county records on Aug 13, 2026
Around this home
Schools
Monte Rio Elementary School
Public K-8 • Assigned • 0.6mi
7/10
Analy High School
Public 9-12 • Assigned • 11.7mi
8/10
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
1/10 Fire Factor
Unlikely to be in a wildfire in next 30 years
2/10 Heat Factor
8 days above 84° expected this year, 23 days in 30 years
1/10 Wind Factor
Minimal risk of severe winds over next 30 years
9/10 Air Factor
17 unhealthy days expected this year, 19 days in 30 years
Provided by First Street
Historical weather
Monte Rio, CA • 95462
Average low and high temperatures (°F)
59
40
60
43
69
44
66
46
74
49
75
51
77
53
82
53
77
55
75
49
62
45
58
44
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun exposure
In this area, properties receive around 10.6 hours in
June and 4.9 hours in December, placing it above the
U.S. average for solar exposure.
10.6 hrs
4.9 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$472,000 – $572,000
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