SOLD DEC 22, 2025

Last listed at $535,000, closed on dec 2025

$529,013

•

2,976

sq ft

117 Keystone Ridge Dr, O Fallon, MO 63366

About this home

Exceptional brick great room ranch in desirable Keystone Ridge. Split floor plan features light-filled rooms with soaring ceilings, wide plank flooring and contemporary fixtures. Covered front porch with arched brick entryway leads to gracious foyer and spectacular great room with cathedral ceiling & tiled fireplace flanked by full-height windows that overlook wooded ground. Chef’s kitchen with 42” white Shaker cabinetry, quartz countertops, stainless steel appliances & 6’ center island adjoins vaulted breakfast room with sliding door that opens to deck. Coffered primary bedroom suite with customized walk-in closet & luxury bath offers an appealing retreat. 2 Additional bedrooms & hall full bath complete the main floor living quarters. Lower Level entertainment space includes spacious recreation room with sliding glass door to patio plus 4th bedroom & full bath. Situated on a private lot with fully fenced backyard, deck, expansive patio & 3-car garage.

Single-familyProperty Type

2019Year Built

0.26 acresLot Size

$178Est. Price/Sq.Ft.

3 car garageParking

Listed by Sabina Dehn • Coldwell Banker Realty - Gundaker

Bought with Kristina Knight • Coldwell Banker Realty - Gundaker

Redfin checked: 2 minutes ago

•Source:MARIS as Distributed by MLS Grid #25077306

Redfin Estimate

$529,013

$5,987 under list price of $535K

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 1.7% higher than the average sale price ($520K) of 6 comparable homes.

SOLD AUG 13, 2026
$425,000
A
4 beds3 baths2,664 sq ft
393 Victory Height Dr, Wentzville, MO 63385
SOLD SEP 18, 2026
$440,000
B
4 beds2.5 baths2,947 sq ft
609 Sunny Pass Dr, Wentzville, MO 63385
SOLD JUL 7, 2026
$639,900
C
4 beds2.5 baths3,163 sq ft
51 Blue Brook Ct, O Fallon, MO 63366
SOLD JUL 16, 2026
$425,000
D
4 beds2.5 baths2,880 sq ft
225 Flint Brook Dr, O Fallon, MO 63366
SOLD AUG 4, 2026
$615,000
E
3 beds2.5 baths2,560 sq ft
361 Mystic Brook Dr, O Fallon, MO 63366
SOLD AUG 31, 2026
$574,900
F
4 beds3 baths2,328 sq ft
622 Beaver Ct, Lake St Louis, MO 63367

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Earn from this home

Sell

$496,563

Est. take-home

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Rent

$2,924/mo

Redfin rental estimate

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Market trends in 63366, MO

Last updated September 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-List Price

101.6%

0.2% MoM

Median sale price

$381K

$0 MoM

Avg. days on market

10d

3 days MoM

Recently sold homes

184

9 MoM

New listings for sale

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COMING SOON
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3 beds2.5 baths2,410 sq ft
1353 Apple Valley Dr, O Fallon, MO 63366
$350,000
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11 Fawn View Ln, O Fallon, MO 63366
$499,900
5 beds3.5 baths3,356 sq ft
408 Saint Gemma Dr, O Fallon, MO 63366
$234,900
3 beds1.5 baths910 sq ft
204 Allen Dr, O Fallon, MO 63366
3D WALKTHROUGH
$450,000
4 beds4 baths4,267 sq ft
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3D WALKTHROUGH
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3D WALKTHROUGH
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See all

Provided by Redfin

Sale history for 117 Keystone Ridge Dr

Date

Event

Price

Public Records

Jan 5, 2026

Sold

$535,000

$180/sq ft

Public Records

Jan 5, 2026

Sold

—

MARIS as Distributed by MLS Grid #25077306

Dec 22, 2025

Sold

Nov 25, 2025

Contingent

—

Nov 19, 2025

Listed

$535,000

$180/sq ft

MARIS as Distributed by MLS Grid #25060240

Sep 16, 2025

Price Changed

$549,900

$185/sq ft

Sep 5, 2025

Listed

$569,900

$191/sq ft

Public Records

Apr 25, 2023

Sold

$524,900

$176/sq ft

MARIS as Distributed by MLS Grid #23014288

Apr 22, 2023

Pending

—

Apr 21, 2023

Sold

Mar 25, 2023

Contingent

—

Mar 16, 2023

Listed

$524,900

$176/sq ft

Mar 15, 2023

Coming Soon

$524,900

$176/sq ft

+31

Gorgeous 4 bedroom 3 bath home for sale w/ 3 car garage in the beautiful O'Fallon area! The desirable open floor plan is perfect for entertaining! The kitchen is all stainless steel appliances, gas range, white quartz countertops with matching white cabinets, and gray tile backsplash. The breakfast room has a sliding glass door that leads to the handsome deck. The kitchen flows into the living room which has vaulted ceilings and gas fireplace. The spacious master bedroom stands out with its stunning coffered ceiling and large custom walk-in closet. Master bath has a separate tub and shower, & his/hers vanities. Convenient main floor laundry with luxury vinyl tile flooring. The professionally finished walk-out basement has a huge rec room, 12x12 bedroom, & full bath for those out of town guests! Basement walk-out opens to big concrete patio and custom fenced back yard with large 25x16 Patio & custom landscaped fire pit area. Other features include Gutter Guards and inground sprinklers.

Tax history for 117 Keystone Ridge Dr

*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.

Public record

Public record
Zoning
Permits

Beds

Baths

Stories

Lot width

—

Lot depth

—

Lot size

0.26 Acres

Year renovated

—

Sq. Ft.

2,976

Year built

2019

Style

Single Family Residential

County

St. Charles County

APN

2-0048-C585-00-0007.0000000

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Aug 7, 2026.

R-1

PUD

Single-Family Residential District

This District is composed of those areas of the City whose principal use is and ought to be low-density single-family dwellings. The regulations of this District are designed to create and preserve a predominately urban character as evidenced by lot sizes, and street and drainage requirements. In addition to the dwelling permitted in this District, certain compatible recreational and public uses are conditionally allowed and strictly regulated to ensure harmony with the principal use of this District.

Zone overlays

Planned Unit Development District

Permitted uses

Include but are not limited to:

Housing-Single unit
Communications tower
Park & open space

Jul 10, 2020 • Final

Building-plumbing - sewer lateral / water service / lawn irrigation

Install a new irrigation system and backflow preventer.

Grading

Jul 19, 2019 • Final

Building-residential new construction - single- multi-family / mobile home / modular

New construction

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

Parking

Parking Information
Parking Features: Attached, Garage, Garage Door Opener, Garage Faces Front
Garage Spaces: 3
Has Attached Garage
Has Garage

Interior

Bedroom Information
# of Bedrooms: 4
# of Bedrooms Main: 3
Main And Upper Level Bedrooms: 3
Upper Level Bedrooms: 0
Lower Level Bedrooms: 1

Bathroom Information
# of Full Baths (Total): 3
Main Level Bathrooms Half: 0
Main Level Bathrooms Full: 2
Main And Upper Level Bathrooms: 2
Upper Level Bathrooms Half: 0
Upper Level Bathrooms Full: 0
Lower Level Bathrooms Half: 0
Lower Level Bathrooms Full: 1

Room 1 Information
Room Type: Great Room
Room Dimensions: 21x18
Room Length: 21
Room Width: 18
Room Level: Main

Room 2 Information
Room Type: Kitchen
Room Dimensions: 13x12
Room Length: 13
Room Width: 12
Room Level: Main

Room 3 Information
Room Type: Breakfast Room
Room Dimensions: 11x11
Room Length: 11
Room Width: 11
Room Level: Main

Room 4 Information
Room Dimensions: 21x15
Room Length: 21
Room Width: 15
Room Level: Main

Room 5 Information
Room Type: Bedroom 2
Room Dimensions: 12x11
Room Length: 12
Room Width: 11
Room Level: Main

Room 6 Information
Room Type: Bedroom 3
Room Dimensions: 12x11
Room Length: 12
Room Width: 11
Room Level: Main

Room 7 Information
Room Type: Recreation Room
Room Dimensions: 23x21
Room Length: 23
Room Width: 21

Room 8 Information
Room Type: Bedroom 4
Room Dimensions: 13x12
Room Length: 13
Room Width: 12

Room 9 Information
Room Type: Laundry
Room Dimensions: 8x6
Room Length: 8
Room Width: 6
Room Level: Main

Laundry Room Information
Laundry Features: Laundry Room, Main Level, Sink

Basement Information
Has Basement
Basement Features: 9 ft + Pour, Bathroom, Partially Finished, Full, Sleeping Area, Storage Space, Sump Pump, Walk-Out Access

Other Rooms Information
Room Count: 9
# of Rooms: 6

Fireplace Information
Has Fireplace
# of Fireplaces: 1
Fireplace Features: Gas, Great Room

Heating & Cooling
Heating Information: Forced Air, Natural Gas
Cooling Information: Ceiling Fan(s), Central Air, Electric

Interior Features
Interior Features: Breakfast Bar, Cathedral Ceiling(s), Ceiling Fan(s), Coffered Ceiling(s), Double Vanity, Kitchen Island, Open Floorplan, Pantry, Storage, Vaulted Ceiling(s), Walk-in Closet(s)
Window Features: Blinds
Appliances: Stainless Steel Appliance(s), Dishwasher, Disposal, Microwave, Built-In Gas Range
Flooring: Carpet, Vinyl

Exterior

Building Information
Construction Materials: Brick Veneer, Concrete, Vinyl Siding
Roof: Architectural Shingle

Exterior Features
Patio And Porch Features: Covered, Deck, Front Porch, Patio
Fencing: Back Yard, Fenced
Door Features: Sliding Door(s)

Pool Information
Pool YN: 0

Property Information
Property Type: Residential
Property Sub Type: Single Family Residence
Above Grade Finished Area: 1,984
Above Grade Finished Area Source: Public Records
Below Grade Finished Area: 992
Below Grade Finished Area Source: Estimated

Lot Information
Lot Features: Adjoins Wooded Area, Level, Sprinklers In Front, Sprinklers In Rear
Lot Size Acres: 0.2621
Lot Size Source: Public Records

Financial

Tax Information
Tax Annual Amount: $5,309
Tax Year: 2024

Lease / Rent Details
Lease Considered YN: No

Financial Information
Second Mortgage YN: 0

Utilities

Utility Information
Water Source: Public
Electric: Other
Sewer: Public Sewer

Location

HOA Information
Association Name: Keystone Ridge
Has HOA
Association Amenities: None
Association Fee: $325
Association Fee Frequency: Annually
Association Fee Includes: Common Area Maintenance

School Information
Elementary School: Mount Hope Elem.
Middle Or Junior High School: Ft. Zumwalt North Middle
High School: Ft. Zumwalt North High
High School District: Ft. Zumwalt R-II

Location Information
Address Line: 117 Keystone Ridge DR, OFLLN MO 63366

Community Information
Community Features: Sidewalks, Street Lights

Public facts

Beds: 3
Baths: 3.0
Sq. Ft.: 2,976
Stories: 1.0
Lot Size: 0.26 acres
Style: Single Family Residential
Year Built: 2019
Year Renovated: —
County: St. Charles County
APN: 2-0048-C585-00-0007.0000000

Home facts updated by county records on Aug 7, 2026

Other

Listing Information
Home Warranty YN: No
Seller Consider Concession YN: 0

Home Information
Living Area: 2976
Living Area Source: Public Records
Living Area Srch Sq Ft: 2976.00
Above Grade Finished Area Srch Sq Ft: 1984.00
Below Grade Finished Area Srch Sq Ft: 992.00
Public Records
Structure Type: House
Levels: One
Security Features: Carbon Monoxide Detector(s), Smoke Detector(s)

Around this home

Schools

Flint Hill Elementary

Public K-5 • Assigned • 4.4mi

7/10

Ft. Zumwalt North Middle School

Public 6-8 • Assigned • 4.4mi

8/10

Ft. Zumwalt North High School

Public 9-12 • Assigned • 5.9mi

9/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Climate risks

1/10 Flood Factor

Minimal risk of a flood reaching the building in the next 30 years

1/10 Fire Factor

Unlikely to be in a wildfire in next 30 years

4/10 Heat Factor

6 days above 107° expected this year, 17 days in 30 years

2/10 Wind Factor

1% chance of strong winds in next 30 years

1/10 Air Factor

0 unhealthy days expected this year, 0 days in 30 years

Provided by First Street

Historical weather

O Fallon, MO • 63366

Average low and high temperatures (°F)

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Sun exposure

In this area, properties receive around 9.7 hours in June and 4.2 hours in December, which is comparable to the U.S. average for solar exposure.

9.7 hrs

4.2 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$503,000 – $609,000

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Home values near 117 Keystone Ridge Dr

Data from public records.

Address	Redfin Estimate
101 Keystone Ridge Drive, O Fallon, MO 4 Beds \| 2.5 Baths \| 3020 Sq. Ft.	$601,890
111 Keystone Ridge Drive, O Fallon, MO 3 Beds \| 2 Baths \| 1984 Sq. Ft.	$428,383

Address	Redfin Estimate
105 Keystone Ridge Drive, O Fallon, MO 4 Beds \| 2.5 Baths \| 3500 Sq. Ft.	$497,692
113 Keystone Ridge Drive, O Fallon, MO 3 Beds \| 2 Baths \| 1984 Sq. Ft.	$443,048

Address	Redfin Estimate
109 Keystone Ridge Drive, O Fallon, MO 3 Beds \| 2 Baths \| 1571 Sq. Ft.	$379,376
115 Keystone Ridge Drive, O Fallon, MO 4 Beds \| 2.5 Baths \| 2964 Sq. Ft.	$460,160

Property information provided by MARIS as Distributed by MLS Grid when last listed in 2025. This data may not match . Learn more.

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