OFF MARKET

Last listed at $440,000, closed on may 2025

$445,684

•

2,471

sq ft

123 Keystone Ridge Dr, O Fallon, MO 63366

About this home

This Immaculate ranch home (backing to woods) is move in ready! Approx 2400 Square feet of Living Space! Main level boasts a Vaulted Ceiling Great Room (with electric fireplace) drawing you into the open floor plan that flows into the Breakfast Room - Kitchen Combo Area with LVP Flooring throughout. Kitchen features excellent cabinet & counter space, tiled backsplash, stainless steel appliances, pantry, Breakfast Bar & more! Main Floor Laundry Room a bonus. Primary Bedroom suite with Full Bath (double vanity, separate tub & Shower) along with Two Additional Bedrooms and 2nd Full Bath round out the main level. BONUS Finished Living Space in the Walk-out Lower that provides a Large Family Room (with Wet-Bar for entertaining) a 4th Bedroom and 3rd Full Bath and still has storage space! Fenced Yard - with Upper Level Deck and Lower Level Patio areas looking out into the wooded tree line. In-ground sprinkler system for easy lawn care. Come take a closer look.

Single-familyProperty Type

2018Year Built

10,280 sq ftLot Size

$180Est. Price/Sq.Ft.

2 car garageParking

Listed by George Black • Meyer Real Estate

Listed by Michael Harbour • Meyer Real Estate

Bought with Christina Swyers • EXP Realty, LLC

Redfin checked: a few seconds ago

•Source:MARIS as Distributed by MLS Grid #25022990

Redfin Estimate

$445,684

$5,684 over list price of $440K

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 7.9% higher than the average sale price ($413K) 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 APR 20, 2026
$380,000
B
4 beds3 baths2,281 sq ft
209 Flint Brook Dr, O Fallon, MO 63366
SOLD SEP 18, 2026
$440,000
C
4 beds2.5 baths2,947 sq ft
609 Sunny Pass Dr, Wentzville, MO 63385
SOLD JUL 29, 2026
$339,000
D
4 beds3.5 baths2,120 sq ft
3 Flying Fox Way, Wentzville, MO 63385
SOLD AUG 21, 2026
$500,000
E
3 beds2.5 baths2,012 sq ft
345 Mystic Brook Dr, O Fallon, MO 63366
SOLD DEC 8, 2025
$395,000
F
4 beds3 baths2,308 sq ft
490 Pleasant Breeze Dr, Wentzville, MO 63385

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Earn from this home

Sell

$418,017

Est. take-home

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Rent

$2,740/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

100.8%

0.8% MoM

Median sale price

$360K

$21K MoM

Avg. days on market

12d

2 days MoM

Recently sold homes

179

5 MoM

New listings for sale

NEW 7 HRS AGO
$439,900
4 beds3.5 baths2,764 sq ft
1597 Indian Springs Dr, O Fallon, MO 63366
NEW 19 HRS AGO
$325,000
2 beds2 baths1,446 sq ft
10 Thoreau Ct, O Fallon, MO 63366
$129,900
1 bed1 bath562 sq ft
304 W Pitman St, O Fallon, MO 63366
COMING SOON
$400,000
3 beds2.5 baths2,410 sq ft
1353 Apple Valley Dr, O Fallon, MO 63366
$350,000
3 beds2 baths1,800 sq ft
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
1615 Wainscott Ct, O Fallon, MO 63366
3D WALKTHROUGH
$499,000
4 beds3.5 baths3,480 sq ft
759 Obrecht Ln, O Fallon, MO 63366
$650,000
4 beds3.5 baths5,286 sq ft
3116 Brook Hollow Dr, O Fallon, MO 63366
See all

Provided by Redfin

Sale history for 123 Keystone Ridge Dr

Date

Event

Price

Public Records

May 30, 2025

Sold

$440,000

$178/sq ft

MARIS as Distributed by MLS Grid #25022990

May 29, 2025

Sold

Apr 23, 2025

Pending

—

Apr 13, 2025

Listed

$440,000

$178/sq ft

Apr 12, 2025

Coming Soon

$440,000

$178/sq ft

Public Records

May 7, 2024

Sold

$430,000

$174/sq ft

MARIS as Distributed by MLS Grid #24016055

May 1, 2024

Sold

Mar 27, 2024

Pending

—

Mar 21, 2024

Listed

$375,000

$152/sq ft

Mar 18, 2024

Coming Soon

$375,000

$152/sq ft

+22

***CHANGE OF PLANS! SHOWINGS START AT 4PM ON THIS FRIDAY 3/22*** Open house 3/24 2-4pm! This ADORABLE 4 year old O'fallon area home is an absolute CHARMER! Located in a quiet neighborhood with instant access to hwy 70, this MOVE IN READY ranch home is a must see! Looking for increased privacy and a beautiful wooded view...this is it! Inside offers a light and bright open concept living. The main level offers vaulted ceilings, LVP floors and tons of natural light! Large living room leaves little left to desire. Open kitchen with dark cabinets, stainless steel appliances and reach in pantry! Perfect mudroom/main floor laundry room. Master suite includes walk-in closet, beautiful view and full en suite bathroom. Two additional generously sized bedrooms and a large hall bath round out the spacious man floor. Finished basement perfect for entertaining! Look at that bar! BIG 4th bedroom and full bath! Walkout basement leads you to a GIANT fenced yard with covered patio and composite deck!

MARIS as Distributed by MLS Grid #20019581

May 11, 2020

Pending

—

May 7, 2020

Price Changed

$279,999

$113/sq ft

Apr 3, 2020

Listed

$289,900

$117/sq ft

+30

HUGE PRICE REDUCTION! Why build when you can move right into this 1-year old McBride built Hickory Ranch? This spacious home features 3 bedrooms and 2 baths. The Walkout Homesite, backs to trees, providing a ton of PRIVACY. The lower level, with the 3/4 bath rough-in is awaiting your finishing touches. The home is perfect for entertaining with a large breakfast bar in the kitchen opening to the dining and great room with vaulted ceilings. The Kitchen features 42” tall cabinets and stainless steel GE appliances. The master suite features a walk-in closet and a full bath with double sinks. Upgraded Wood Laminate Flooring and carpeting, and two-panel white interior doors throughout the home. Laundry is conveniently located on the main level. Keystone Ridge is a beautiful O’Fallon community off I-70 in the Fort Zumwalt North School District, featuring lush common ground, and minutes away from Quail Ridge Park.

Public Records

Feb 24, 2020

Sold

$290,219

$117/sq ft

MARIS as Distributed by MLS Grid #19032243

Jul 1, 2019

Sold

May 30, 2019

Pending

—

May 7, 2019

Price Changed

$264,425

$107/sq ft

May 2, 2019

Listed

$259,925

$105/sq ft

Tax history for 123 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

10,280 Sq. Ft.

Year renovated

—

Sq. Ft.

2,480

Year built

2018

Style

Single Family Residential

County

St. Charles County

APN

2-0048-C585-00-0010.0000000

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

Aug 1, 2022 • Final

Building-residential alterations - decks / additions / solar / remodels / patio covers / plumbing / electrical / mechanical

Remodel

May 11, 2021 • Final

Building-accessory structures - fence / shed / barn / garage / wall / pavilion / gazebo / misc

Install a new aluminum fence.

ADU

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 Total: 2
Parking Features: Attached, Garage, Garage Door Opener
Garage Spaces: 2
Carport Spaces: 0
Has Attached Garage
Has Garage
Garage Size Description: 19 X 19

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: 20 x 14
Room Length: 20
Room Width: 14
Room Level: Main

Room 2 Information
Room Type: Kitchen
Room Dimensions: 16 x 10
Room Length: 16
Room Width: 10
Room Level: Main

Room 3 Information
Room Type: Breakfast Room
Room Dimensions: 14 x 11
Room Length: 14
Room Width: 11
Room Level: Main

Room 4 Information
Room Dimensions: 16 x 13
Room Length: 16
Room Width: 13
Room Level: Main

Room 5 Information
Room Type: Bedroom
Room Dimensions: 11 x 11
Room Length: 11
Room Width: 11
Room Level: Main

Room 6 Information
Room Type: Bedroom
Room Dimensions: 11 x 10
Room Length: 11
Room Width: 10
Room Level: Main

Room 7 Information
Room Type: Laundry
Room Dimensions: 8 x 6
Room Length: 8
Room Width: 6
Room Level: Main

Room 8 Information
Room Type: Family Room
Room Dimensions: 29 x 20
Room Length: 29
Room Width: 20
Room Level: Lower

Room 9 Information
Room Type: Bedroom
Room Dimensions: 15 x 15
Room Length: 15
Room Width: 15
Room Level: Lower

Laundry Room Information
Laundry Features: Main Level

Basement Information
Has Basement
Basement Features: Bathroom, Full, Partially Finished, Sleeping Area, Sump Pump, Walk-Out Access

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

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

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

Interior Features
Floor Plan: Primary Bed on Main,Primary Bed Suite
Interior Features: Open Floorplan, Vaulted Ceiling(s), Walk-in Closet(s), Bar, Breakfast Bar, Pantry, Double Vanity
Window Features: Window Treatments
Appliances: Gas Water Heater
Flooring: Carpet

Exterior

Building Information
Construction Materials: Vinyl Siding

Exterior Features
Patio And Porch Features: Deck, Patio, Covered
Door Features: Panel Door(s), Sliding Door(s)

Pool Information
Pool YN: 0

Property Information
Ownership Type: Private
Property Type: Residential
Property Sub Type: Single Family Residence
Above Grade Finished Area: 1,571
Above Grade Finished Area Units: Square Feet
Above Grade Finished Area Source: Assessor
Below Grade Finished Area: 900
Below Grade Finished Area Units: Square Feet
Below Grade Finished Area Source: Assessor

Lot Information
Lot Features: Adjoins Wooded Area, Level, Sprinklers In Front, Sprinklers In Rear
Lot Size Area: 0.24
Lot Size Units: Acres
Lot Size Acres: 0.236
Lot Size Dimensions: 10
Lot Size Source: Public Records
Lot Size Area Unknown YN: 0
Road Surface Type: Concrete

Financial

Tax Information
Tax Annual Amount: $4,396
Tax Year: 2024

Utilities

Utility Information
Water Source: Public
Sewer: Public Sewer
Utilities: Electricity Available

Location

Multi-Unit Information
Unit Count: 0

HOA Information
Association Fee: $400
Association Fee Frequency: Annually

School Information
Elementary School: Flint Hill 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
Directions: GPS Friendly. Guthrie Rd to Keystone Ridge Dr
Address Line: 123 Keystone Ridge DR, OFLLN MO 63366

Public facts

Beds: 3
Baths: 3.0
Sq. Ft.: 2,480
Stories: 1.0
Lot Size: 10,280 square feet
Style: Single Family Residential
Year Built: 2018
Year Renovated: —
County: St. Charles County
APN: 2-0048-C585-00-0010.0000000

Home facts updated by county records on Aug 7, 2026

Other

Listing Information
Transaction Type: Sale
Possible Buyer Fees YN: 0
Seller Consider Concession YN: 0

Home Information
Living Area: 2471
Living Area Units: Square Feet
Living Area Source: Assessor
Living Area Srch Sq Ft: 2471.00
Living Area Unknown YN: 0
Above Grade Finished Area Srch Sq Ft: 1571.00
Below Grade Finished Area Srch Sq Ft: 900.00
Levels: One

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

$424,000 – $513,000

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Home values near 123 Keystone Ridge Dr

Data from public records.

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

Address	Redfin Estimate
111 Keystone Ridge Drive, O Fallon, MO 3 Beds \| 2 Baths \| 1984 Sq. Ft.	$428,383
117 Keystone Ridge Drive, O Fallon, MO 4 Beds \| 3 Baths \| 2976 Sq. Ft.	$529,013

Address	Redfin Estimate
113 Keystone Ridge Drive, O Fallon, MO 3 Beds \| 2 Baths \| 1984 Sq. Ft.	$443,048
119 Keystone Ridge Drive, O Fallon, MO 4 Beds \| 2.5 Baths \| 2941 Sq. Ft.	$505,476

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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