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128 Keystone Ridge Dr, O Fallon, MO 63366

$388,400

Last sold date unavailable

  • 3

    bed

  • 2

    bath

  • 1,571

    Sqft ($220/Sqft)

House not for sale
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About 128 Keystone Ridge Dr

Property type House
Year built 2020
HOA fee $0/month
Lot size 9,060 Sqft
Movoto estimate
Rental estimate
Property description
This 3-bedroom, 2-bathroom single-family home is located at 128 Keystone Ridge Dr, O Fallon, MO, 63366 in Saint Charles County and was built in 2020. This home offers 1,571 square feet of living space on a 9,060 sq ft lot. The estimated market value is $388,400, approximately $247 per square foot.
$388K
Range: $361K-$414K
Last 30 days 
Rental est.: $2,514/month
Gross rent multiplier: 11.4
  • Year Property taxes Tax assessment
  • 2025
    $4,109 +7.8%
    $65,841 +19.06%
  • 2022
    $3,813 +8.0%
    $55,302
  • 2021
    $3,532 +416.4%
    $55,302 +482.13%
  • 2020
    $684 -0.4%
    $9,500
  • 2019
    $687 -4.5%
    $9,500
  • 2018
    $719
    $9,500
  • 128 Keystone Ridge Dr
    $344K
  • —
  • 63366
    $399K +1% y/y
  • O Fallon
    $444K +1% y/y
No chart available
Statistics calculated by Movoto
Est. value Bed/bath Sqft mi
130 Keystone Ridge Dr, O Fallon, MO 63366 $489,800 4/2 3,000 0.01
126 Keystone Ridge Dr, O Fallon, MO 63366 $404,100 3/2 1,571 0.01
132 Keystone Ridge Dr, O Fallon, MO 63366 $451,800 4/2 2,798 0.02
122 Keystone Ridge Dr, O Fallon, MO 63366 $456,300 4/2 2,836 0.03
127 Keystone Ridge Dr, O Fallon, MO 63366 $392,000 3/2 1,573 0.03
129 Keystone Ridge Dr, O Fallon, MO 63366 $479,400 3/3 1,984 0.03
134 Keystone Ridge Dr, O Fallon, MO 63366 $459,800 3/2 2,002 0.03
125 Keystone Ridge Dr, O Fallon, MO 63366 $459,200 3/2 1,984 0.03

Estimated values are based on public record data and automated valuation models. Values are not guaranteed and may not reflect current market conditions.

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7/10
Mount Hope Elementary School
public Grades K-5
Ft. Zumwalt R-II School District
8/10
Ft. Zumwalt North High School
public Grades 9-12
Ft. Zumwalt R-II School District
Source: GreatSchools.org © 2026. All rights reserved.

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