20289 Alder Rd is a 1,144 square foot house on a 6,400 square foot lot with 2 bedrooms and 1 bathroom. - it last sold on August 22, 2008 for $67,500. Based on Redfin's Monte Rio data, we estimate the home's value is $445,384.
Single-familyProperty Type
1949Year Built
6,400 sq ftLot Size
$389Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$445,384
$378K since sold in August 2008$19K since July
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 12.2% lower than the average sale price ($507K) of 5 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 history record
Work on a reroof.
Roofing
Jun 11, 2016 • Final
Building permit no plan check
Upgrade the electrical service at a single-family home.
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: 1
Room Information
# of Rooms: 3
Exterior
Exterior Information
Building Style Type: Square Design
Construction Type: Wood/Steel
Building Construction Quality: Fair
Property Information
Subdivision Name: STARRETT SUB
Living Sq. Ft: 1,144
Ground Floor Sq. Ft: 1,144
Building Sq. Ft: 1,144
# of Stories: 1
Legal Description: STARRETT SUB LOT 42
Parking & Garage Information
Garage/Parking Sq. Ft: 322
Lot Information
# of Buildings: 1
Land Sq. Ft: 6,400
Legal Lot Number: 42
Acres: 0.1469
Zoning Code: RR1
County Use Description: SINGLE FAM DWELLING
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 2
Baths: 1.0
Sq. Ft.: 1,144
Stories: 1.0
Lot Size: 6,400 square feet
Style: Single Family Residential
Year Built: 1949
Year Renovated: 1949
County: Sonoma County
APN: 095221015000
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
7/10 Flood Factor
Estimated 71-79% 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, 25 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
49
75
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73
52
81
53
78
53
75
49
62
45
58
44
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
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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
$424,000 – $513,000
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