20271 Railroad Ave is a 1,910 square foot house on a 5,320 square foot lot with 1 bathroom. Based on Redfin's Monte Rio data, we estimate the home's value is $496,480.
Single-familyProperty Type
1910Year Built
5,320 sq ftLot Size
$260Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$496,480
$28K since September
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 19.8% higher than the average sale price ($414K) of 6 comparable homes.
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Earn from this home
Sell
$469,762
Est. take-home
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Market trends in 95462, CA
Last updated September 2026
Buyer's Market
Seller's Market
Balanced market
Sale-to-List Price
98.7%
+1.2% MoM
Median sale price
$599K
$19K MoM
Avg. days on market
34d
3 days MoM
Recently sold homes
7
1 MoM
Provided by Redfin
Sale history for 20271 Railroad Ave
As the MLS and public records start to fill up, we'll list the details here.
Year
Property tax
Land + Additions
Assessment*
2025
$1,442 (+3.5%)
$33,138 + $39,350
$72,488
2024
$1,394 (+1.6%)
$32,489 + $38,579
$71,068
2023
$1,372 (+1.9%)
$31,852 + $37,823
$69,675
2022
$1,347 (+1.0%)
$31,228 + $37,082
$68,310
2021
$1,334 (−3.9%)
$30,616 + $36,355
$66,971
2020
$1,387 (+5.9%)
$30,016 + $35,643
$65,659
2019
$1,309 (+21.8%)
$29,709 + $35,278
$64,987
2018
$1,075 (+3.1%)
$29,127 + $34,587
$63,714
2017
$1,043 (+0.1%)
$27,997 + $33,245
$61,242
2015
$1,042 (+1.3%)
$27,449 + $32,594
$60,043
2014
$1,029 (+0.3%)
$26,508 + $31,477
$57,985
2013
$1,026 (+3.4%)
$26,508 + $31,477
$57,985
2012
$993 (+1.3%)
$26,389 + $31,335
$57,724
2011
$980 (+0.7%)
$25,872 + $30,721
$56,593
2010
$974 (−0.4%)
$25,365 + $30,119
$55,484
2009
$977 (−3.7%)
$25,176 + $29,894
$55,070
2007
$1,015
$24,742 + $29,379
$54,121
Tax history for 20271 Railroad Ave
Year
Property tax
Land + Additions
Assessment*
2025
$1,442 (+3.5%)
$33,138 + $39,350
$72,488
2024
$1,394 (+1.6%)
$32,489 + $38,579
$71,068
2023
$1,372 (+1.9%)
$31,852 + $37,823
$69,675
2022
$1,347 (+1.0%)
$31,228 + $37,082
$68,310
2021
$1,334 (−3.9%)
$30,616 + $36,355
$66,971
2020
$1,387 (+5.9%)
$30,016 + $35,643
$65,659
2019
$1,309 (+21.8%)
$29,709 + $35,278
$64,987
2018
$1,075 (+3.1%)
$29,127 + $34,587
$63,714
2017
$1,043 (+0.1%)
$27,997 + $33,245
$61,242
2015
$1,042 (+1.3%)
$27,449 + $32,594
$60,043
2014
$1,029 (+0.3%)
$26,508 + $31,477
$57,985
2013
$1,026 (+3.4%)
$26,508 + $31,477
$57,985
2012
$993 (+1.3%)
$26,389 + $31,335
$57,724
2011
$980 (+0.7%)
$25,872 + $30,721
$56,593
2010
$974 (−0.4%)
$25,365 + $30,119
$55,484
2009
$977 (−3.7%)
$25,176 + $29,894
$55,070
2007
$1,015
$24,742 + $29,379
$54,121
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Permits
Jul 21, 2023 • Final
Building permit no plan check
Install a ductless mini split system in a single-family home.
HVAC
Jun 11, 2016 • Final
Building history record
Perform repairs on 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
Bathroom Information
# of Full Baths: 1
Room Information
# of Rooms: 2
Exterior
Exterior Information
Building Style Type: L-Shape
Construction Type: Wood/Steel
Building Construction Quality: Poor
Property Information
Subdivision Name: EAST MONTE RIO ADD 01
Living Sq. Ft: 1,910
Building Sq. Ft: 1,910
# of Stories: 1
Legal Description: 94 FM 095-225-011 CW PT RD OR 93-088622
Lot Information
# of Buildings: 1
Land Sq. Ft: 5,320
Legal Lot Number: 9
Legal Block Number: 7
Acres: 0.1221
Zoning Code: RR1
County Use Description: SINGLE FAM DWELLING
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: —
Baths: 1.0
Sq. Ft.: 1,910
Stories: 1.0
Lot Size: 5,320 square feet
Style: Single Family Residential
Year Built: 1910
Year Renovated: 1948
County: Sonoma County
APN: 095225030000
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
8 days above 86° expected this year, 22 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
77
53
82
53
77
55
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
$472,000 – $571,000
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