20221 Alder Rd is a 1,738 square foot house on a 0.33 acre lot with 3 bedrooms and 2.5 bathrooms. Based on Redfin's Monte Rio data, we estimate the home's value is $686,625.
Single-familyProperty Type
1961Year Built
0.33 acresLot Size
$395Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$686,625
$32K since July
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 5.4% lower than the average sale price ($726K) 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
$1,763 (+3.1%)
$15,481 + $86,511
$101,992
2024
$1,709 (+1.7%)
$15,178 + $84,815
$99,993
2023
$1,681 (+2.0%)
$14,881 + $83,152
$98,033
2022
$1,649 (+1.0%)
$14,590 + $81,522
$96,112
2021
$1,632 (−3.1%)
$14,304 + $79,924
$94,228
2020
$1,684 (+5.2%)
$14,024 + $78,357
$92,381
2019
$1,600 (+18.2%)
$13,881 + $77,554
$91,435
2018
$1,354 (+12.6%)
$13,609 + $76,034
$89,643
2017
$1,202 (−7.1%)
$13,082 + $73,083
$86,165
2015
$1,294 (+1.5%)
$12,826 + $71,650
$84,476
2014
$1,275 (+0.2%)
$12,387 + $69,192
$81,579
2013
$1,272 (+3.1%)
$12,387 + $69,192
$81,579
2012
$1,235 (+1.4%)
$12,332 + $68,880
$81,212
2011
$1,217 (+0.8%)
$12,091 + $67,530
$79,621
2010
$1,208 (−0.4%)
$11,854 + $66,206
$78,060
2009
$1,213 (−2.7%)
$11,766 + $65,712
$77,478
2007
$1,246
$11,563 + $64,578
$76,141
Tax history for 20221 Alder Rd
Year
Property tax
Land + Additions
Assessment*
2025
$1,763 (+3.1%)
$15,481 + $86,511
$101,992
2024
$1,709 (+1.7%)
$15,178 + $84,815
$99,993
2023
$1,681 (+2.0%)
$14,881 + $83,152
$98,033
2022
$1,649 (+1.0%)
$14,590 + $81,522
$96,112
2021
$1,632 (−3.1%)
$14,304 + $79,924
$94,228
2020
$1,684 (+5.2%)
$14,024 + $78,357
$92,381
2019
$1,600 (+18.2%)
$13,881 + $77,554
$91,435
2018
$1,354 (+12.6%)
$13,609 + $76,034
$89,643
2017
$1,202 (−7.1%)
$13,082 + $73,083
$86,165
2015
$1,294 (+1.5%)
$12,826 + $71,650
$84,476
2014
$1,275 (+0.2%)
$12,387 + $69,192
$81,579
2013
$1,272 (+3.1%)
$12,387 + $69,192
$81,579
2012
$1,235 (+1.4%)
$12,332 + $68,880
$81,212
2011
$1,217 (+0.8%)
$12,091 + $67,530
$79,621
2010
$1,208 (−0.4%)
$11,854 + $66,206
$78,060
2009
$1,213 (−2.7%)
$11,766 + $65,712
$77,478
2007
$1,246
$11,563 + $64,578
$76,141
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Permits
May 30, 2025 • Final
Building permit no plan check
Roofing
Apr 30, 2025 • Final
Building permit no plan check
Replace duct runs in a single-family home.
HVAC
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
# of 1/2 Baths: 1
Fireplace Information
# of Fireplaces: 1
Has Fireplace
Room Information
# of Rooms: 7
Exterior
Exterior Information
Building Style Type: U-Shape
Construction Type: Wood/Steel
Building Construction Quality: Good
Property Information
Subdivision Name: STARRETT TR 51
Living Sq. Ft: 1,738
Ground Floor Sq. Ft: 1,738
Building Sq. Ft: 2,388
# of Stories: 1
Legal Description: LOTS 24 & 26 STARRETT SUB TRACT #51
Parking & Garage Information
Parking Type: Attached Garage
Garage/Parking Sq. Ft: 650
Garage / Carport Type: Attached
Lot Information
# of Buildings: 1
Land Sq. Ft: 14,400
Legal Lot Number: 24
Acres: 0.3306
Zoning Code: RR1
County Use Description: SINGLE FAM DWELLING
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 3
Baths: 2.5
Sq. Ft.: 1,738
Stories: 1.0
Lot Size: 0.33 acres
Style: Single Family Residential
Year Built: 1961
Year Renovated: 1961
County: Sonoma County
APN: 095222009000
Home facts updated by county records on Aug 13, 2026
Around this home
Schools
Places
Transit
Monte Rio Elementary School
Public K-8 • Assigned • 0.6mi
7/10
Analy High School
Public 9-12 • Assigned • 10.5mi
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
3/10 Heat Factor
10 days above 86° expected this year, 26 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
81
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
$653,000 – $790,000
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