20501 Highway 116 is a 792 square foot house on a 4,655 square foot lot with 2 bedrooms and 1 bathroom. - it last sold on July 31, 1980 for $20,000. Based on Redfin's Monte Rio data, we estimate the home's value is $444,159.
Single-familyProperty Type
1910Year Built
4,655 sq ftLot Size
$561Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$444,159
$424K since sold in July 1980$16K since August
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 1.8% lower than the average sale price ($452K) 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 20, 2026 • Active
Building permit no plan check
HVAC
Aug 19, 2025 • Final
Building permit no plan check
Plumbing
Water heater
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: 2
Exterior
Exterior Information
Building Style Type: Square Design
Construction Type: Wood/Steel
Building Construction Quality: Poor
Property Information
Subdivision Name: BREENS ADD
Living Sq. Ft: 792
Ground Floor Sq. Ft: 792
Building Sq. Ft: 792
# of Stories: 1
Parking & Garage Information
Garage/Parking Sq. Ft: 792
Lot Information
# of Buildings: 1
Land Sq. Ft: 4,655
Legal Lot Number: 2
Legal Block Number: B
Acres: 0.1069
Zoning Code: R11UA
County Use Description: SINGLE FAM DWELLING
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 2
Baths: 1.0
Sq. Ft.: 792
Stories: 1.0
Lot Size: 4,655 square feet
Style: Single Family Residential
Year Built: 1910
Year Renovated: 1938
County: Sonoma County
APN: 094123005000
Home facts updated by county records on Aug 13, 2026
Around this home
Schools
Monte Rio Elementary School
Public K-8 • Assigned • 0.3mi
7/10
Analy High School
Public 9-12 • Assigned • 10.9mi
8/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Climate risks
4/10 Flood Factor
Estimated 11-17% 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
10 days above 86° expected this year, 27 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
46
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
Jul
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
$422,000 – $511,000
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