2. 309 Keystone Dr Fenton MO
309 Keystone Dr Fenton MO

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309 Keystone Dr Fenton, MO

309 Keystone Dr Fenton, MO 63026 was built in 1997 and last sold for $414,960. The property has a lot size of 10,890 Sq Ft lot and is listed as a Single Family. The property is currently not for sale. Current estimates place the value near 366,000, reflecting a 3% change over the past year, with 4 beds, 2 baths, and approximately 1,416 sq ft of living space. If you are looking to buy or rent a property, use USPhoneBook's property database to avoid rental scams, understand tax liabilities, and get a sense of the property's value over time. You can also check out the neighborhood section and see nearby homes, last sold for prices, tax records and more.
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Public Facts

$414,960
Last sold Nov 7, 2025
4
Beds
2
Baths
1,416
Sqft
Off Market
$366,000 estimated value
Built in 1997
$258/sqft
10,890 lot sqft
$500 HOA fees

Property characteristics

Property type
Residential
Zoning type
Single Family
APN
02-1.0-02.0-4-001-031
Parking
2
Subdivision
Winter Valley 2
Heating
Central
Cooling
Central
Fireplaces
1
Stories
1

Property History

Over the last 12 months, the sales price of 309 Keystone Dr Fenton, MO 63026 has increased by 3%.

Price History

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Year Price Price/Sq Ft
2026 $ 390,000 3 % $ 275
2025 $ 378,000 9 % $ 267
2024 $ 345,000 -13 % $ 244
2023 $ 398,000 29 % $ 281
2022 $ 308,000 8 % $ 218
2021 $ 285,000 ---- $ 201

Tax History

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Year Taxes Assesments
2026 ---- $ 41,000
2025 $ 2,904 7 %
2024 $ 2,689 0 % $ 36,700
2023 $ 2,694 8 % $ 36,700
2022 $ 2,480 ---- $ 33,800
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Owner

Scott Deffenderfer Scott Douglas Deffenderfer , Age 57

Lives at 309 Keystone Dr, Fenton, MO 63026-7603
Relatives: Lori Deffenderfer, Jonathan Deffenderfer, Cordelia Frey, Edna Grafelman, Emily Eckert, Lester Grafelman, Lonnie Frey, Lori Frey
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People Living at 309 Keystone Dr Fenton, MO

Scott Deffenderfer Scott Douglas Deffenderfer , Age 57

Lives at 309 Keystone Dr, Fenton, MO 63026-7603 Fenton MO 63026 309 Keystone Dr
Prior addresses: 316 Keystone DR, Fenton, MO 63026-4889 Fenton MO 63026 316 Keystone DR 9215 Medallion Ct, Saint Louis, MO 63126-2507 Saint Louis MO 63126 9215 Medallion Ct 819 Westbrooke Village Dr, Apt B, Manchester, MO 63021-8915 Manchester MO 63021 819 Westbrooke Village Dr, Apt B
Relatives: Lori Deffenderfer, Jonathan Deffenderfer, Cordelia Frey, Edna Grafelman, Emily Eckert, Lester Grafelman, Lonnie Frey, Lori Frey
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Patricia Grimes Patricia M Grimes , Age 65

Lives at 229 Dusty Trl, Pontiac, MO 65729-7183 Pontiac MO 65729 229 Dusty Trl
Prior addresses: 309 Keystone Dr, Fenton, MO 63026-7603 Fenton MO 63026 309 Keystone Dr 6404 Pennsylvania AVE, Saint Louis, MO 63111-2927 Saint Louis MO 63111 6404 Pennsylvania AVE 1229 Carol Ann Pl, Saint Louis, MO 63122-1808 Saint Louis MO 63122 1229 Carol Ann Pl
Relatives: Rachel Kinthiseng, Aaronetta Grimes, Donald Te, Edward Murphy, Elaine Grimes, Frederick Grimes, Joan Amurphy
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Cherie Stirnemann Cherie Lyn Stirnemann , Age 54

Lives at 201 Romaine Spring Vw, Fenton, MO 63026-5833 Fenton MO 63026 201 Romaine Spring Vw
Prior addresses: 309 Keystone Dr, Fenton, MO 63026-7603 Fenton MO 63026 309 Keystone Dr 5542 Duessel Ln, Apt A, Saint Louis, MO 63128-3867 Saint Louis MO 63128 5542 Duessel Ln, Apt A
Relatives: Michael Stirnemann, Alec Stirnemann, Daniel Stirnemann, David Stirnemann, Jeffrey Stirnemann, Judith Stirnemann, Kate Wynveen, Laurie Lewis, Paula Stubbs
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Alec Stirnemann Alec M Stirnemann , Age 28

Lives at 1856 Strawberry Ridge Dr, Ballwin, MO 63021-7773 Ballwin MO 63021 1856 Strawberry Ridge Dr
Prior addresses: 201 Romaine Spring Vw, Fenton, MO 63026-5833 Fenton MO 63026 201 Romaine Spring Vw 309 Keystone DR, Fenton, MO 63026-7603 Fenton MO 63026 309 Keystone DR
Relatives: Cherie Stirnemann, Kate Wynveen, Michael Stirnemann, Scott Stirnemann, Taylor Stirnemann, Caleb Stirnemann, Cheryl Stirnemann, Daniel Stirnemann
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Brittney Pratt Brittney Jean Pratt , Age 33

Lives at 4213 Poppy Hill Ct, Rowlett, TX 75088-6496 Rowlett TX 75088 4213 Poppy Hill Ct
Prior addresses: 1207 E Oak St, Wylie, TX 75098-5182 Wylie TX 75098 1207 E Oak St 309 Keystone Dr, Fenton, MO 63026-7603 Fenton MO 63026 309 Keystone Dr 21399 E Estrella Ct, Queen Creek, AZ 85142-5614 Queen Creek AZ 85142 21399 E Estrella Ct
Relatives: Jack Pratt, Sheryl Pratt, Beryle Davis, John Oster, John Pratt, Jordan Oster, Leeann Pratt
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Lori Deffenderfer Lori Ann Deffenderfer , Age 62

Lives at 2503 Captiva Dr, Apt 6, Saint Louis, MO 63125-5603 Saint Louis MO 63125 2503 Captiva Dr, Apt 6
Prior addresses: 309 Keystone DR, Fenton, MO 63026-7603 Fenton MO 63026 309 Keystone DR 5123 Peyton Place Ct, Saint Louis, MO 63128-2902 Saint Louis MO 63128 5123 Peyton Place Ct 30 N Harvest Crest CT, Highland, IL 62249-3884 Highland IL 62249 30 N Harvest Crest CT
Relatives: Scott Deffenderfer, Cordelia Frey, Edna Grafelman, Emily Eckert, Jonathan Deffenderfer, Lester Grafelman, Lonnie Frey, Lori Deffenderfer, Lori Frey
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Walter Thomas Walter Robert Thomas , Age 35

Lives at 4213 Poppy Hill Ct, Rowlett, TX 75088-6496 Rowlett TX 75088 4213 Poppy Hill Ct
Prior addresses: 1207 E Oak St, Wylie, TX 75098-5182 Wylie TX 75098 1207 E Oak St 309 Keystone Dr, Fenton, MO 63026-7603 Fenton MO 63026 309 Keystone Dr 21399 E Estrella Ct, Queen Creek, AZ 85142-5614 Queen Creek AZ 85142 21399 E Estrella Ct
Relatives: Michael Thomas, Shelbie Thomas, Walter Thomas, Angie Smith, Ashley Smith, Babatunde Smith, Billy Tanton, Brandon Smith, Charessa Murley
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Michael Stirnemann Michael A Stirnemann , Age 54

Lives at 201 Romaine Spring Vw, Fenton, MO 63026-5833 Fenton MO 63026 201 Romaine Spring Vw
Prior addresses: 309 Keystone Dr, Fenton, MO 63026-7603 Fenton MO 63026 309 Keystone Dr 1044 Poplar Dr, Saint Louis, MO 63125-5022 Saint Louis MO 63125 1044 Poplar Dr 5542 Duessel Ln, Apt A, Saint Louis, MO 63128-3867 Saint Louis MO 63128 5542 Duessel Ln, Apt A
Relatives: Cherie Stirnemann, Alec Stirnemann, Cheryl Stirnemann, Daniel Stirnemann, David Stirnemann, Jeffrey Stirnemann, Judith Stirnemann, Kate Wynveen, Scott Stirnemann
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Roderick Grimes Roderick N Grimes , Age 65

Lives at 229 Dusty Trl, Pontiac, MO 65729-7183 Pontiac MO 65729 229 Dusty Trl
Prior addresses: Po Box 1981, Dover, DE 19903-1981 Dover DE 19903 Po Box 1981 309 Keystone Dr, Fenton, MO 63026-7603 Fenton MO 63026 309 Keystone Dr 6404 Pennsylvania Ave, Saint Louis, MO 63111-2927 Saint Louis MO 63111 6404 Pennsylvania Ave
Relatives: Aaronetta Grimes, Chandler Grimes, Elaine Grimes, Frederick Grimes, Joy Grimes, Kim Grimes
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Dylan Scarborough Dylan Matthew Scarborough , Age 25

Lives at 309 SW Keystone Dr, Blue Springs, MO 64014-3925 Blue Springs MO 64014 309 SW Keystone Dr
Prior addresses: 501 SW Locust ST, Oak Grove, MO 64075-9432 Oak Grove MO 64075 501 SW Locust ST 37310 E Cummings Rd, Oak Grove, MO 64075-8577 Oak Grove MO 64075 37310 E Cummings Rd 309 Keystone DR, Fenton, MO 63026-7603 Fenton MO 63026 309 Keystone DR
Relatives: Abbie Scarborough, Brandie Scarborough, Glenda Cowan, Merna Scarborough, Perry Scarborough, Sheila Scarborough, Stacie Scarborough, Steve Scarborough, Torrie Thielbar
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Neighbors

313 Keystone Dr
Fenton, MO
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8 Keystone Ct
Fenton, MO
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840 Sundance Ct
Fenton, MO
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312 Keystone Dr
Fenton, MO
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FAQs

Who lives at 309 Keystone Dr, Fenton, MO 63026?
According to our records, the current person living in 309 Keystone Dr is Scott Deffenderfer.
Is this property currently for sale?
The property is not for sale and last sold for $414,960 on Nov 7, 2025. Use USPhoneBook to review nearby listings or compare similar homes in the area.
What is the estimated value of this property?
The estimated value is $366,000, reflecting a 3% change over the past year. You can explore price history and tax records to see how the value has changed over time.
How big is this property?
It features approximately 1,416 sq ft of living space on a 10,890 sq ft lot, built in 1997 and classified as a Single Family.
What nearby properties can I compare this to?
Nearby homes include 313 Keystone Dr, 8 Keystone Ct, and 840 Sundance Ct, each with its own property report to help compare size, value, and residents.