21937 Highway 116 is a 3,172 square foot house on a 5,120 square foot lot with 3 bedrooms and 2 bathrooms. - it last sold on July 24, 2000 for $230,000. Based on Redfin's Monte Rio data, we estimate the home's value is $627,775.
Single-familyProperty Type
1905Year Built
5,120 sq ftLot Size
$198Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$627,775
$398K since sold in July 2000$4,000 since September
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 8.1% higher than the average sale price ($581K) 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
Dec 12, 2025 • Final
Building permit no plan check
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: 1,636
Bathroom Information
# of Full Baths: 2
Fireplace Information
# of Fireplaces: 1
Has Fireplace
Room Information
# of Rooms: 7
Exterior
Exterior Information
Building Style Type: L-Shape
Construction Type: Wood/Steel
Building Construction Quality: Fair
Property Information
Subdivision Name: MONTE CRISTO 01
Living Sq. Ft: 3,172
Ground Floor Sq. Ft: 1,536
Building Sq. Ft: 3,172
# of Stories: 2
Legal Description: MAP H7 360
Parking & Garage Information
Garage/Parking Sq. Ft: 216
Lot Information
# of Buildings: 1
Land Sq. Ft: 5,120
Legal Lot Number: 46,47
Acres: 0.1175
Zoning Code: RR1
County Use Description: SINGLE FAM DWELLING
Location Information
Parcel Location Influence: River
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 3
Baths: 2.0
Sq. Ft.: 3,172
Stories: 2.0
Lot Size: 5,120 square feet
Style: Single Family Residential
Year Built: 1905
Year Renovated: 1929
County: Sonoma County
APN: 094025018000
Home facts updated by county records on Aug 13, 2026
Around this home
Schools
Monte Rio Elementary School
Public K-8 • Assigned • 0.7mi
7/10
Analy High School
Public 9-12 • Assigned • 11.7mi
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
3/10 Fire Factor
0.15% chance of being in a wildfire in next 30 years
2/10 Heat Factor
8 days above 84° expected this year, 22 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
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77
53
82
53
77
55
75
49
62
45
58
44
Jan
Feb
Mar
Apr
May
Jun
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Aug
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Oct
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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
$597,000 – $722,000
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