Single Family for Sale: 155 Keystone Ridge Drive, O'Fallon, MO 63366 SOLD

3 beds
2 full baths
1,984 sqft
$425,000
$425,000
155 Keystone Ridge Drive, O'Fallon, MO 63366 SOLD
3 beds
2 full baths
1,984 sqft
$425,000
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Floor Plans
Selling Price: $425,000
Original List Price: $439,900
Sold at 96.6% of list price
Sold Date: 02/20/2026

Type Single Family
Style 1 Story
Architecture Ranch
Beds 3
Baths 2 full baths
Total Living Area 1,984 sqft
Square Footage 1,984 sqft
Garage Spaces 3
Lot Size 0.21 acres
Year Built 2019
Assoc Fee $400
Assoc Fee Paid Annually
Taxes Paid $4,678

City O'Fallon
Area 408 - Fort Zumwalt North
County St. Charles
School District Ft. Zumwalt R-II
Subdivision Keystone Ridge

MLS 25076846
Status Closed
DOM 27 days
Don’t miss your chance to own this charming home in a highly desirable O’Fallon neighborhood! This gorgeous 3-bedroom, 2-bath home with a 3-car garage offers nearly 2,000 sq. ft. of main-floor living—plenty of room for everything and everyone! You’ll love the beautiful hardwood floors, vaulted ceilings, tons of natural light, spacious Great Room feels warm and inviting. The primary suite is a true standout with its large walk-in closet and a bright master bath featuring a separate tub and shower, plus convenient his-and-hers vanities. Two additional generously sized bedrooms and a roomy hall bath complete the main level, along with a super convenient main-floor laundry. Step outside to the deck and patio—perfect for entertaining, grilling, or simply enjoying a peaceful morning cup of coffee. This home also features a whole-house water purification system, adding an extra touch of comfort and quality. The lower level features an egress window and a rough-in for a future bathroom, giving you the opportunity to expand and make the space your own. All of this in a prime location near parks, shopping, restaurants, and major highways. Great house, great location, great opportunity!

Room Features

Basement Description 9 ft + Pour, Roughed-In Bath, Egress Window, Unfinished, Concrete

Virtual Tours for 155 Keystone Ridge Drive O'Fallon, MO

Lot & Building Features

Assoc Fee $400
Assoc Fee Paid Annually
Construction Brick, Vinyl Siding
Cooling Central Air
Heating Natural Gas, Forced Air
Parking Description Garage, Off Street, Garage Door Opener
Sewer Public Sewer
Tax Year 2024
Taxes Paid $4,678
Water Public

Community and Schools

Elementary School Mount Hope Elem.
Junior High School Ft. Zumwalt North Middle
Senior High School Ft. Zumwalt North High

Price History of 155 Keystone Ridge Drive, O'Fallon, MO

Date Name Price Difference
12/10/2025 Price Adjustment $425,000 3.39%
Coming Soon Listing Price $439,900 N/A
*Information provided by REWS for your reference only. The accuracy of this information cannot be verified and is not guaranteed.

Map of 155 Keystone Ridge Drive, O'Fallon, MO

Location Map Street View
Photo of Dorcas Dunlop
Direct: 314-304-3117
Office
107 W Lockwood Ave
Webster Groves, MO 63119
314-962-1100
Listed by Coldwell Banker Realty - Gundaker, Jodie Tiberghien
Sold by Coldwell Banker Realty - Gundaker, James Moll
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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.

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Listing information courtesy of: Coldwell Banker Realty - Gundaker

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