20279 Alder Rd is a 728 square foot house on a 6,000 square foot lot with 2 bedrooms and 1 bathroom. - it last sold on June 30, 1987 for $65,000. Based on Redfin's Monte Rio data, we estimate the home's value is $480,582.
Single-familyProperty Type
1951Year Built
6,000 sq ftLot Size
$660Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$480,582
$416K since sold in June 1987$16K since July
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 6.4% higher 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
Jun 11, 2016 • Final
Building permit no plan check
Remodel
Jun 11, 2016 • Final
Building history record
Repair a single-family home.
Remodel
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: 728
Bathroom Information
# of Full Baths: 1
Heating & Cooling
Heating Type: Space
Room Information
# of Rooms: 3
Exterior
Exterior Information
Physical Condition: Average
Building Style Type: Square Design
Construction Type: Wood/Steel
Building Construction Quality: Poor
Exterior Wall: Wood Siding
Property Information
Subdivision Name: STARRETT SUB
Living Sq. Ft: 728
Ground Floor Sq. Ft: 728
Building Sq. Ft: 728
# of Stories: 1
Legal Description: STARRETT SUB LOT 36
Lot Information
# of Buildings: 1
Land Sq. Ft: 6,000
Legal Lot Number: 36
Acres: 0.1377
Zoning Code: RR1
County Use Description: SINGLE FAM DWELLING
Utility Information
Sewer Type: Septic
Water Service Type: Commercial
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 2
Baths: 1.0
Sq. Ft.: 728
Stories: 1.0
Lot Size: 6,000 square feet
Style: Single Family Residential
Year Built: 1951
Year Renovated: —
County: Sonoma County
APN: 095221018000
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
5/10 Flood Factor
Estimated 19-29% 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, 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)
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73
52
81
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78
53
75
49
62
45
58
44
Jan
Feb
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May
Jun
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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
$457,000 – $553,000
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