21856 Highway 116 is a 1,649 square foot house on a 0.45 acre lot with 2 bedrooms and 2 bathrooms. Based on Redfin's Monte Rio data, we estimate the home's value is $801,390.
Single-familyProperty Type
1949Year Built
0.45 acresLot Size
$486Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$801,390
$66K since August
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 14.5% higher than the average sale price ($700K) of 6 comparable homes.
As the MLS and public records start to fill up, we'll list the details here.
Year
Property tax
Land + Additions
Assessment*
2025
$9,016 (+2.1%)
$156,060 + $613,836
$769,896
2024
$8,834 (+299.3%)
$153,000 + $601,800
$754,800
2023
$2,212 (+2.0%)
$150,000 + $590,000
$740,000
2022
$2,170 (+1.1%)
$13,399 + $130,612
$144,011
2021
$2,146 (−2.2%)
$13,137 + $128,051
$141,188
2020
$2,194 (+4.4%)
$12,880 + $125,541
$138,421
2019
$2,102 (+14.6%)
$12,748 + $124,254
$137,002
2018
$1,834 (+3.8%)
$12,499 + $121,818
$134,317
2017
$1,767 (+2.2%)
$12,014 + $117,089
$129,103
2015
$1,728 (+1.6%)
$11,779 + $114,794
$126,573
2014
$1,700 (+0.2%)
$11,376 + $110,856
$122,232
2013
$1,696 (+2.7%)
$11,376 + $110,856
$122,232
2012
$1,651 (+1.6%)
$11,325 + $110,355
$121,680
2011
$1,625 (+0.9%)
$11,103 + $108,192
$119,295
2010
$1,611 (−0.5%)
$10,886 + $106,071
$116,957
2009
$1,619 (−1.5%)
$10,805 + $105,279
$116,084
2007
$1,644
$10,619 + $103,461
$114,080
Tax history for 21856 Highway 116
Year
Property tax
Land + Additions
Assessment*
2025
$9,016 (+2.1%)
$156,060 + $613,836
$769,896
2024
$8,834 (+299.3%)
$153,000 + $601,800
$754,800
2023
$2,212 (+2.0%)
$150,000 + $590,000
$740,000
2022
$2,170 (+1.1%)
$13,399 + $130,612
$144,011
2021
$2,146 (−2.2%)
$13,137 + $128,051
$141,188
2020
$2,194 (+4.4%)
$12,880 + $125,541
$138,421
2019
$2,102 (+14.6%)
$12,748 + $124,254
$137,002
2018
$1,834 (+3.8%)
$12,499 + $121,818
$134,317
2017
$1,767 (+2.2%)
$12,014 + $117,089
$129,103
2015
$1,728 (+1.6%)
$11,779 + $114,794
$126,573
2014
$1,700 (+0.2%)
$11,376 + $110,856
$122,232
2013
$1,696 (+2.7%)
$11,376 + $110,856
$122,232
2012
$1,651 (+1.6%)
$11,325 + $110,355
$121,680
2011
$1,625 (+0.9%)
$11,103 + $108,192
$119,295
2010
$1,611 (−0.5%)
$10,886 + $106,071
$116,957
2009
$1,619 (−1.5%)
$10,805 + $105,279
$116,084
2007
$1,644
$10,619 + $103,461
$114,080
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Permits
Jul 14, 2025 • Final
Solar-solarapp
Battery
Electrical
Solar
Apr 8, 2025 • Final
Building permit no plan check
Replace a 200-amp meter main and relocate it to an adjacent corner of the home to meet workspace clearances. No additional electrical loads are being added.
Electrical
Electric meter
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: 2
Fireplace Information
# of Fireplaces: 1
Has Fireplace
Room Information
# of Rooms: 6
Exterior
Exterior Information
Construction Type: Wood/Steel
Building Construction Quality: Average
Pool Information
Has Pool
Property Information
Subdivision Name: MONTE CRISTO SUB #1
Living Sq. Ft: 1,649
Building Sq. Ft: 1,649
# of Stories: 1
Legal Description: 86 FM 94-025-14 CW 95-056-01 CM 85-58153
Parking & Garage Information
Parking Type: Detached Garage
Garage/Parking Sq. Ft: 980
Garage / Carport Type: Detached
Lot Information
# of Buildings: 1
Land Sq. Ft: 19,510
Legal Lot Number: 51-55
Acres: 0.4479
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: 2.0
Sq. Ft.: 1,649
Stories: 1.0
Lot Size: 0.45 acres
Style: Single Family Residential
Year Built: 1949
Year Renovated: 1985
County: Sonoma County
APN: 094025029000
Home facts updated by county records on Aug 13, 2026
Around this home
Schools
Monte Rio Elementary School
Public K-8 • Assigned • 0.6mi
7/10
Analy High School
Public 9-12 • Assigned • 11.6mi
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
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
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
$762,000 – $922,000
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