20224 Alder Rd is a 1,585 square foot house on a 7,500 square foot lot with 2 bedrooms and 2.5 bathrooms. - it last sold on August 15, 2008 for $368,000. Based on Redfin's Monte Rio data, we estimate the home's value is $671,607.
Single-familyProperty Type
1974Year Built
7,500 sq ftLot Size
$424Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$671,607
$304K since sold in August 2008$31K since July
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 8.1% lower than the average sale price ($731K) 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
Jul 3, 2025 • Final
Building permit no plan check
Heat pump
HVAC
Jun 19, 2020 • Final
Building permit with plan check
Battery
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
Bathroom Information
# of Full Baths: 2
# of 1/2 Baths: 1
Room Information
# of Rooms: 5
Exterior
Exterior Information
Construction Type: Wood/Steel
Building Construction Quality: Good
Property Information
Subdivision Name: STARRETT 51
Living Sq. Ft: 1,585
Ground Floor Sq. Ft: 1,585
Building Sq. Ft: 1,585
# of Stories: 1
Parking & Garage Information
Garage/Parking Sq. Ft: 414
Lot Information
# of Buildings: 1
Land Sq. Ft: 7,500
Legal Lot Number: 55
Acres: 0.1722
Zoning Code: RR1
County Use Description: SINGLE FAM DWELLING
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 2
Baths: 2.5
Sq. Ft.: 1,585
Stories: 1.0
Lot Size: 7,500 square feet
Style: Single Family Residential
Year Built: 1974
Year Renovated: 1974
County: Sonoma County
APN: 095233030000
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
6/10 Flood Factor
Estimated 22-32% 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
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
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43
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74
49
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73
52
81
53
78
53
75
49
62
45
58
44
Jan
Feb
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Apr
May
Jun
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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
$639,000 – $773,000
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