640 W Ralston St is a 970 square foot house on a 9,180 square foot lot with 3 bedrooms and 1 bathroom. Based on Redfin's Ontario data, we estimate the home's value is $599,076.
Single-familyProperty Type
1957Year Built
9,180 sq ftLot Size
$618Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$599,076
$11K since September
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 0.4% lower than the average sale price ($602K) 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
$5,542 (+2.3%)
$169,793 + $344,372
$514,165
2024
$5,416 (+1,114.1%)
$166,464 + $337,620
$504,084
2023
$446 (+1.4%)
$9,000 + $30,139
$39,139
2022
$440 (+0.7%)
$9,000 + $30,139
$39,139
2021
$437 (+1.7%)
$8,824 + $29,548
$38,372
2020
$430 (+0.8%)
$8,651 + $28,969
$37,620
2019
$426 (+1.4%)
$8,562 + $28,672
$37,234
2018
$420 (+3.6%)
$8,394 + $28,110
$36,504
2017
$406 (+4.0%)
$8,068 + $27,019
$35,087
2016
$390 (+0.8%)
$8,068 + $27,019
$35,087
2015
$387 (+3.2%)
$7,910 + $26,489
$34,399
2014
$375 (−0.9%)
$7,638 + $25,580
$33,218
2013
$378 (+5.1%)
$7,638 + $25,580
$33,218
2012
$360 (+0.5%)
$7,603 + $25,464
$33,067
2011
$358 (+0.9%)
$7,454 + $24,965
$32,419
2010
$355 (+0.1%)
$7,308 + $24,475
$31,783
2009
$355 (+1.6%)
$7,253 + $24,292
$31,545
2008
$349
$7,270 + $24,350
$31,620
Tax history for 640 W Ralston St
Year
Property tax
Land + Additions
Assessment*
2025
$5,542 (+2.3%)
$169,793 + $344,372
$514,165
2024
$5,416 (+1,114.1%)
$166,464 + $337,620
$504,084
2023
$446 (+1.4%)
$9,000 + $30,139
$39,139
2022
$440 (+0.7%)
$9,000 + $30,139
$39,139
2021
$437 (+1.7%)
$8,824 + $29,548
$38,372
2020
$430 (+0.8%)
$8,651 + $28,969
$37,620
2019
$426 (+1.4%)
$8,562 + $28,672
$37,234
2018
$420 (+3.6%)
$8,394 + $28,110
$36,504
2017
$406 (+4.0%)
$8,068 + $27,019
$35,087
2016
$390 (+0.8%)
$8,068 + $27,019
$35,087
2015
$387 (+3.2%)
$7,910 + $26,489
$34,399
2014
$375 (−0.9%)
$7,638 + $25,580
$33,218
2013
$378 (+5.1%)
$7,638 + $25,580
$33,218
2012
$360 (+0.5%)
$7,603 + $25,464
$33,067
2011
$358 (+0.9%)
$7,454 + $24,965
$32,419
2010
$355 (+0.1%)
$7,308 + $24,475
$31,783
2009
$355 (+1.6%)
$7,253 + $24,292
$31,545
2008
$349
$7,270 + $24,350
$31,620
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Permits
Apr 19, 2023 • Active
Building combo
Upgrade the main electrical panel to a higher amperage.
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
Heating & Cooling
Air Conditioning Type: Refrigeration
Heating Fuel Type: Gas Public/Piped
Heating Type: Central
Room Information
# of Rooms: 5
Exterior
Exterior Information
Physical Condition: Average
Building Style Type: Conventional
Construction Type: Frame
Roof Covering Type: Built Up Composition
Roof Shape Type: Built Up Composition
Pool Information
Pool Type: Pool and Spa
Has Pool
Property Information
Living Sq. Ft: 970
Ground Floor Sq. Ft: 756
Building Sq. Ft: 970
# of Stories: 1
Legal Description: TRACT 5559 LOT 6
Lot Information
# of Buildings: 1
Land Sq. Ft: 9,180
Legal Lot Number: 6
Municipality Name: ONTARIO
Acres: 0.2107
Depth Footage: 170
Front Footage: 54
County Use Description: SINGLE FAMILY RES
Utility Information
Electricity / Wiring Type: Overhead Wires
Sewer Type: Public
Water Service Type: Public
Financial
Assessor Information
Assessment Year: 2026
Tax District County: ONTARIO
Public facts
Beds: 3
Baths: 1.0
Sq. Ft.: 970
Stories: 1.0
Lot Size: 9,180 square feet
Style: Single Family Residential
Year Built: 1957
Year Renovated: 1957
County: San Bernardino County
APN: 1049 571 22 0 000
Home facts updated by county records on Oct 5, 2026
Around this home
Schools
Mission Elementary School
Public K-6 • Assigned • 1.4mi
7/10
Oaks Middle School
Public 7-8 • Assigned • 0.9mi
7/10
Ontario High School
Public 9-12 • Assigned • 1.0mi
5/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
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