Single Family for Sale: 421 Keystone Drive, Fenton, MO 63026

4 beds
3 full, 1 half baths
2,210 sqft
$485,000
$485,000
421 Keystone Drive, Fenton, MO 63026
4 beds
3 full, 1 half baths
2,210 sqft
$485,000
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Price:
$485,000

Type Single Family
Style 2 Story
Beds 4
Baths 3 full, 1 half baths
Square Footage 2,210 sqft
Garage Spaces 2
Lot Size 0.52 acres
Year Built 1999
Assoc Fee $500
Assoc Fee Paid Annually
Taxes Paid $3,568

City Fenton
County Jefferson
School District Fox C-6
Subdivision Winter Valley 03

MLS 25042109
Status Pending
DOM 6 days
421 Keystone Drive, in the sought after Winter Valley Subdivision, is tucked away at the end of a peaceful cul-de-sac and backs to trees and common ground. This stunning 4-bedroom, 3.5-bath beauty offers over 2,500 sq ft of stylish, updated living space. The open concept main level is flooded with natural light and connects seamlessly to the backyard oasis. Enjoy summer like never before with your heated saltwater inground pool, surrounded by expansive outdoor entertaining space perfect for pool parties, BBQs, or a relaxing evening under the stars. Step inside to find acacia hardwood floors on the main level and an updated kitchen with stainless steel appliances. The second level has bamboo hardwood throughout and the large primary bedroom has a beautifully updated ensuite and a custom walk-in closet. The finished walk-out lower level features a bar, full bath, and additional sleeping space. Other major upgrades include a newer roof, gutters, HVAC and windows so you can move right in with peace of mind. Whether you're hosting the big game, poolside BBQs, or relaxing in your peaceful retreat, this home checks all the boxes. Come check it out before it is too late!

Room Features

Basement Description Bathroom, Walk-Out Access, Sump Pump, Storage Space, Sleeping Area, Radon Mitigation, Partially Finished

Virtual Tours for 421 Keystone Drive Fenton, MO

Lot & Building Features

Architecture Traditional
Assoc Fee $500
Assoc Fee Paid Annually
Construction Brick Veneer, Vinyl Siding
Cooling Central Air
Heating Forced Air, Natural Gas
Interior Decor Ceiling Fan(s), Wet Bar, Walk-In Closet(s), Two Story Entrance Foyer, Separate Shower, Separate Dining, Open Floorplan, Kitchen Island, High Speed Internet, Entrance Foyer, Eat-in Kitchen, Double Vanity, Custom Cabinetry
Parking Description Attached, Concrete
Sewer Public Sewer
Tax Year 2024
Taxes Paid $3,568
Fireplaces 1

Community and Schools

Elementary School George Guffey Elem.
Junior High School Ridgewood Middle
Senior High School Fox Sr. High

Price History of 421 Keystone Drive, Fenton, MO

Date Name Price Difference
07/07/2025 Listing Price $485,000 N/A
*Information provided by REWS for your reference only. The accuracy of this information cannot be verified and is not guaranteed.

Comparable Properties Sold Near By

Low
$360,000
$152 / sqft
Average
$450,120
$205 / sqft
High
$574,900
$241 / sqft

Address City Zip Beds Baths Price Sq. Ft. $/SQFT Sold Date
This Listing Fenton 63026 4 4.0 $485,000 2,210 $219 N/A
975 Arlington Glen Drive Fenton 63026 4 4.0 $486,000 2,079 $234 07/30/2024
762 Summer Top Circle Fenton 63026 4 3.0 $375,000 2,144 $175 02/18/2025
5811 Cabot Cove Court St Louis 63128 3 4.0 $574,900 2,389 $241 11/13/2024
13344 W Watson Road Sunset Hills 63127 4 3.0 $360,000 2,368 $152 12/17/2024
5114 Suson Way Court St Louis 63128 4 3.0 $379,900 2,018 $188 12/19/2024
5007 Suson Hills Drive St Louis 63128 3 3.0 $450,000 2,031 $222 02/27/2025
5958 Summerhedge Place St Louis 63128 3 3.0 $480,000 2,352 $204 04/08/2025
5073 Romaine Spring Drive Fenton 63026 5 4.0 $530,000 2,037 $260 05/29/2025
13 Eastview Drive Fenton 63026 5 3.0 $380,000 2,208 $172 05/19/2025
5414 Tesson Parc Court St Louis 63128 4 4.0 $395,000 2,066 $191 06/04/2025
106 Winter Lake Boulevard Fenton 63026 4 3.0 $442,000 2,300 $192 06/26/2025
390 Timber Valley Trail Fenton 63026 5 4.0 $440,000 2,224 $198 06/17/2025
1054 Winter Lake Drive Fenton 63026 4 4.0 $545,000 2,258 $241 06/20/2025
306 Summer Top Lane Fenton 63026 4 4.0 $505,000 2,233 $226 06/18/2025
111 Keystone Drive Fenton 63026 3 3.0 $409,000 2,235 $183 06/30/2025

Map of 421 Keystone Drive, Fenton, MO

Location Map Street View
Photo of The Boehmer Team
Direct: 314-740-5435
Office
950 Caledonia Dr.
O'Fallon, MO 63368
636-720-1100
Listed by Realty Executives of St. Louis, Michael Wood
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0.73567010309278%
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421 Keystone Drive (MLS #25042109) is a 2 story single family home located in Fenton, MO. This single family home is 2,210 sqft and on a lot of 22,651 sqft (or 0.52 acres) with 4 bedrooms and 4 baths. This property was listed on 06/26/2025 and has been priced for sale at $485,000.

The 4 bedroom single family home at 1054 Winter Lake Drive in Fenton is nearby and sold for $545,000 on 06/20/2025. Another nearby 4 bedroom single family home, 106 Winter Lake Boulevard in Fenton sold for $442,000 on 06/26/2025.

Nearby zip codes are 63010, 63025, 63052, 63127 and 63128. This property neighbors other cities such as Arnold, Imperial, Mehlville, St Louis and Sunset Hills.

Maris

Listing Last updated . Some properties which appear for sale on this web site may subsequently have sold or may no longer be available. Walk Score map and data provided by Walk Score. Google map provided by Google. Bing map provided by Microsoft Corporation.

All information provided is deemed reliable but is not guaranteed and should be independently verified.

Listing information courtesy of: Realty Executives of St. Louis

Listings displaying the MARIS logo are courtesy of the participants of Mid America Regional Information Systems Internet Data Exchange