21848 Russian River Ave is a 1,361 square foot house on a 0.5 acre lot with 2 bedrooms and 1 bathroom. - it last sold on January 24, 2002 for $250,000. Based on Redfin's Monte Rio data, we estimate the home's value is $919,054.
Single-familyProperty Type
1914Year Built
0.5 acresLot Size
$675Est. Price/Sq.Ft.
3 garage spacesParking
Source:Public Records
Redfin Estimate
$919,054
$669K since sold in January 2002$14K since August
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 63.6% higher than the average sale price ($562K) 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 20, 2025 • Final
Solar-solarapp
Battery
Electrical
Solar
Dec 22, 2023 • Final
Demolition
Demolish unpermitted improvements and remove all plumbing fixtures, including the tub, shower, lavatory, toilet, and kitchen sink. Remove the range, sink, and door.
Demolition
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
Room Information
# of Rooms: 3
Exterior
Exterior Information
Building Style Type: L-Shape
Construction Type: Wood/Steel
Building Construction Quality: Poor
Property Information
Subdivision Name: MESA GRANDE
Living Sq. Ft: 1,361
Ground Floor Sq. Ft: 856
Building Sq. Ft: 2,065
# of Stories: 1
Parking & Garage Information
Parking Type: Detached Garage
Garage/Parking Sq. Ft: 704
Garage / Carport Type: Detached
Lot Information
# of Buildings: 1
Land Sq. Ft: 21,942
Legal Lot Number: 45-47
Acres: 0.5037
Zoning Code: RR1
County Use Description: SFD W/GRANNY UNIT
Location Information
Parcel Location Influence: River
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 2
Baths: 1.0
Sq. Ft.: 1,361
Stories: 1.0
Lot Size: 0.5 acres
Style: Single Family Residential
Year Built: 1914
Year Renovated: 1990
County: Sonoma County
APN: 095051014000
Home facts updated by county records on Aug 13, 2026
Around this home
Schools
Monte Rio Elementary School
Public K-8 • Assigned • 0.5mi
7/10
Analy High School
Public 9-12 • Assigned • 11.6mi
8/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Climate risks
9/10 Flood Factor
Estimated 80%+ chance of a flood reaching the building in the next 30 years
3/10 Fire Factor
0.46% chance of being in a wildfire in next 30 years
2/10 Heat Factor
9 days above 84° expected this year, 24 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)
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73
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82
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78
53
75
49
62
45
58
44
Jan
Feb
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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
$874,000 – $1.06M
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