20801 River Blvd is a 902 square foot house on a 3,290 square foot lot with 3 bedrooms and 1 bathroom. - it last sold on December 18, 1992 for $77,500. Based on Redfin's Monte Rio data, we estimate the home's value is $458,308.
Single-familyProperty Type
1930Year Built
3,290 sq ftLot Size
$508Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$458,308
$381K since sold in December 1992$15K since August
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 1.1% higher than the average sale price ($453K) 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 11, 2016 • Final
Building history record
Electrical
Jun 11, 2016 • Final
Building history record
Work on a deck.
Remodel
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: 760
Bathroom Information
# of Full Baths: 1
Fireplace Information
# of Fireplaces: 1
Has Fireplace
Room Information
# of Rooms: 4
Exterior
Exterior Information
Building Style Type: L-Shape
Construction Type: Wood/Steel
Building Construction Quality: Poor
Property Information
Subdivision Name: EAST MONTE RIO
Living Sq. Ft: 902
Building Sq. Ft: 902
# of Stories: 1
Legal Description: LOT 2 BLK 1 E MONTE RIO ADDTN NO 1
Lot Information
# of Buildings: 1
Land Sq. Ft: 3,290
Legal Lot Number: 2
Legal Block Number: 1
Acres: 0.0755
Zoning Code: RR1
County Use Description: SINGLE FAM DWELLING
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 3
Baths: 1.0
Sq. Ft.: 902
Stories: 1.0
Lot Size: 3,290 square feet
Style: Single Family Residential
Year Built: 1930
Year Renovated: 1930
County: Sonoma County
APN: 095192002000
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
1/10 Flood Factor
Minimal risk of a flood reaching the building in the next 30 years
2/10 Fire Factor
0.00% chance of being in a wildfire in next 30 years
2/10 Heat Factor
9 days above 86° 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)
59
40
60
43
69
44
66
46
74
49
75
51
73
52
82
53
78
53
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
$436,000 – $528,000
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