20390 River Blvd is a 1,132 square foot house on a 0.28 acre lot with 4 bedrooms and 3 bathrooms. - it last sold on April 29, 2015 for $432,000. Based on Redfin's Monte Rio data, we estimate the home's value is $763,924.
Single-familyProperty Type
1915Year Built
0.28 acresLot Size
$675Est. Price/Sq.Ft.
1 spaceParking
Source:Public Records
Redfin Estimate
$763,924
$332K since sold in April 2015$6,000 since August
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 7.2% higher than the average sale price ($713K) 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
May 2, 2017 • Final
Building permit with plan check
Replace foundation piers.
Remodel
Apr 5, 2017 • Final
Building permit no plan check
Upgrade the existing electrical service for a single-family home.
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: 285
Bathroom Information
# of Full Baths: 2
Fireplace Information
# of Fireplaces: 2
Has Fireplace
Room Information
# of Rooms: 5
Exterior
Exterior Information
Building Style Type: L-Shape
Construction Type: Wood/Steel
Building Construction Quality: Average
Property Information
Subdivision Name: EAST MONTE RIO ADD 01
Living Sq. Ft: 1,216
Ground Floor Sq. Ft: 1,132
Building Sq. Ft: 1,745
# of Stories: 1
Legal Description: LTS 40 & 41 TIER A E MONTE RIO
Parking & Garage Information
Parking Type: Attached Garage
Garage/Parking Sq. Ft: 276
Garage / Carport Type: Attached
Lot Information
# of Buildings: 1
Land Sq. Ft: 12,525
Legal Lot Number: 40
Acres: 0.2875
Zoning Code: RR1
County Use Description: SINGLE FAM DWELLING
Location Information
Parcel Location Influence: River
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 4
Baths: 2.5
Sq. Ft.: 1,132
Stories: 1.0
Parking Spaces: 1
Basement: No
Accessible: No
Lot Size: 0.28 acres
Style: Single Family Residential
Year Built: 1915
Year Renovated: 1990
County: Sonoma County
APN: 095231007000
HOA Dues: —
Garage: Yes
Features: Views
Home facts updated by owner on Apr 27, 2026
Around this home
Schools
Monte Rio Elementary School
Public K-8 • Assigned • 0.5mi
7/10
Analy High School
Public 9-12 • Assigned • 10.6mi
8/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Climate risks
5/10 Flood Factor
Estimated 19-29% chance of a flood reaching the building in the next 30 years
3/10 Fire Factor
0.15% chance of being in a wildfire in next 30 years
2/10 Heat Factor
9 days above 86° expected this year, 25 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
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43
69
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66
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74
49
75
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73
52
82
53
78
53
75
49
62
45
58
44
Jan
Feb
Mar
Apr
May
Jun
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Aug
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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
$726,000 – $879,000
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