20257 Willow Rd is a 410 square foot house on a 9,570 square foot lot with 1 bedroom and 1 bathroom. Based on Redfin's Monte Rio data, we estimate the home's value is $399,813.
Single-familyProperty Type
1943Year Built
9,570 sq ftLot Size
$975Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$399,813
$18K since July
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 9.8% lower than the average sale price ($443K) 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
$1,823 (+3.1%)
$92,209 + $15,356
$107,565
2024
$1,768 (+1.7%)
$90,401 + $15,055
$105,456
2023
$1,739 (+1.9%)
$88,629 + $14,760
$103,389
2022
$1,706 (+1.0%)
$86,892 + $14,471
$101,363
2021
$1,688 (−2.9%)
$85,189 + $14,188
$99,377
2020
$1,739 (+5.1%)
$83,519 + $13,910
$97,429
2019
$1,655 (+17.7%)
$82,663 + $13,768
$96,431
2018
$1,407 (+3.5%)
$81,043 + $13,499
$94,542
2017
$1,359 (+1.3%)
$77,897 + $12,976
$90,873
2015
$1,342 (+1.5%)
$76,370 + $12,722
$89,092
2014
$1,322 (+0.2%)
$73,750 + $12,286
$86,036
2013
$1,319 (+3.0%)
$73,750 + $12,286
$86,036
2012
$1,280 (+1.5%)
$73,417 + $12,231
$85,648
2011
$1,262 (+0.8%)
$71,978 + $11,992
$83,970
2010
$1,252 (−0.4%)
$70,567 + $11,757
$82,324
2009
$1,257 (−2.5%)
$70,040 + $11,670
$81,710
2007
$1,290
$68,831 + $11,469
$80,300
Tax history for 20257 Willow Rd
Year
Property tax
Land + Additions
Assessment*
2025
$1,823 (+3.1%)
$92,209 + $15,356
$107,565
2024
$1,768 (+1.7%)
$90,401 + $15,055
$105,456
2023
$1,739 (+1.9%)
$88,629 + $14,760
$103,389
2022
$1,706 (+1.0%)
$86,892 + $14,471
$101,363
2021
$1,688 (−2.9%)
$85,189 + $14,188
$99,377
2020
$1,739 (+5.1%)
$83,519 + $13,910
$97,429
2019
$1,655 (+17.7%)
$82,663 + $13,768
$96,431
2018
$1,407 (+3.5%)
$81,043 + $13,499
$94,542
2017
$1,359 (+1.3%)
$77,897 + $12,976
$90,873
2015
$1,342 (+1.5%)
$76,370 + $12,722
$89,092
2014
$1,322 (+0.2%)
$73,750 + $12,286
$86,036
2013
$1,319 (+3.0%)
$73,750 + $12,286
$86,036
2012
$1,280 (+1.5%)
$73,417 + $12,231
$85,648
2011
$1,262 (+0.8%)
$71,978 + $11,992
$83,970
2010
$1,252 (−0.4%)
$70,567 + $11,757
$82,324
2009
$1,257 (−2.5%)
$70,040 + $11,670
$81,710
2007
$1,290
$68,831 + $11,469
$80,300
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Permits
Jan 5, 2018 • Final
Building permit no plan check
Replace the existing heating and air conditioning mini-split system in a single-family home.
HVAC
Jun 11, 2016 • Final
Building permit with plan check
Construct an addition on an existing deck.
Addition
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: 2
Exterior
Exterior Information
Building Style Type: Square Design
Construction Type: Wood/Steel
Building Construction Quality: Average
Property Information
Subdivision Name: STARRETT 51
Living Sq. Ft: 410
Building Sq. Ft: 410
# of Stories: 1
Legal Description: 94 FM 095-223-008 CW PT RD OR94-003492 CMB PER MD
Lot Information
# of Buildings: 1
Land Sq. Ft: 9,570
Legal Lot Number: 7
Acres: 0.2197
Zoning Code: RR1
County Use Description: SINGLE FAM DWELLING
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 1
Baths: 1.0
Sq. Ft.: 410
Stories: 1.0
Lot Size: 9,570 square feet
Style: Single Family Residential
Year Built: 1943
Year Renovated: 1969
County: Sonoma County
APN: 095223011000
Home facts updated by county records on Aug 13, 2026
Around this home
Schools
Monte Rio Elementary School
Public K-8 • Assigned • 0.7mi
7/10
Analy High School
Public 9-12 • Assigned • 10.4mi
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
9 days above 86° expected this year, 24 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
$380,000 – $460,000
Reach more buyers when you sell with Redfin. Save up to $3,998 in fees.3 minutes to get started.