20450 River Blvd is a 1,700 square foot house on a 10,760 square foot lot with 2 bedrooms and 1 bathroom. - it last sold on August 26, 2010 for $373,000. Based on Redfin's Monte Rio data, we estimate the home's value is $722,533.
Single-familyProperty Type
1926Year Built
10,760 sq ftLot Size
$425Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$722,533
$350K since sold in August 2010$3,000 since August
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 9% higher than the average sale price ($663K) 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
Jul 31, 2019 • Final
Building permit no plan check
Legalize baseboard heaters in two rooms of a single-family home.
Electrical
HVAC
Feb 11, 2019 • Final
Building permit with plan check
Construct a new deck and stairs.
Addition
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: 600
Bathroom Information
# of Full Baths: 1
Fireplace Information
# of Fireplaces: 1
Has Fireplace
Room Information
# of Rooms: 5
Exterior
Exterior Information
Building Style Type: Square Design
Construction Type: Wood/Steel
Building Construction Quality: Average
Property Information
Subdivision Name: EAST MONTE RIO ADD 01
Living Sq. Ft: 1,700
Building Sq. Ft: 1,700
# of Stories: 1
Legal Description: LOT 36, TIER A, EAST MONTE RIO, ADD NO.1
Parking & Garage Information
Garage/Parking Sq. Ft: 250
Lot Information
# of Buildings: 1
Land Sq. Ft: 10,760
Legal Lot Number: 36
Acres: 0.247
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.: 1,700
Stories: 1.0
Lot Size: 10,760 square feet
Style: Single Family Residential
Year Built: 1926
Year Renovated: 1985
County: Sonoma County
APN: 095231002000
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 • 10.6mi
8/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Climate risks
6/10 Flood Factor
Estimated 42-56% 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
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73
52
82
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78
53
75
49
62
45
58
44
Jan
Feb
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May
Jun
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Aug
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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
$687,000 – $831,000
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