OFF MARKET

Last listed at $350,000, closed on sep 2020

$450,512

Est. refi paymentEst. refi $3,118/mo

•

3,210

sq ft

154 Keystone Ridge Dr, O Fallon, MO 63366

About this home

UPGRADES GALORE!! 2-story SEQUOIA home admired for its PREMIUM CORNER LOT overlooking woods and large decorative boulders. Parking is plentiful with a 3-foot wider driveway & deeper garage. Foundation upgraded to a high-density 6-sack concrete for structural integrity! Energy Efficient with 2-HVAC unit system for 2-ZONES. Luxury flooring throughout. Luxury 2-tone kitchen cabinets with upgraded 42” tall wall cabinets & Solid-Surface countertops. Many upgrades in Master Bed/Bath. Entertain on the oversized deck from the Kitchen or the concrete patio down below from the walkout basement.

Single-familyProperty Type

2018Year Built

0.27 acresLot Size

$140Est. Price/Sq.Ft.

2 car garageParking

Listed by Colleen Roettgers • BHHS Select Properties

Bought with Nathan Doerr • Alexander Realty Inc

Redfin checked: 3 minutes ago

•Source:MARIS as Distributed by MLS Grid #20051345

Redfin Estimate

$450,512

$101K over list price of $350K

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 20.6% lower than the average sale price ($567K) of 6 comparable homes.

SOLD JUN 26, 2026
$679,900
A
5 beds4 baths3,220 sq ft
408 Mossy Brook Dr, O Fallon, MO 63366
SOLD JUN 17, 2026
$685,000
B
5 beds3.5 baths3,646 sq ft
58 Blue Brook Ct, 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 DEC 22, 2025
$535,000
D
4 beds3 baths2,976 sq ft
117 Keystone Ridge Dr, O Fallon, MO 63366
SOLD JUL 7, 2026
$639,900
E
4 beds2.5 baths3,163 sq ft
51 Blue Brook Ct, O Fallon, MO 63366
SOLD AUG 13, 2026
$425,000
F
4 beds3 baths2,664 sq ft
393 Victory Height Dr, Wentzville, MO 63385

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Earn from this home

Sell

$422,568

Est. take-home

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Refinance

Est. cash available

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Rent

$2,869/mo

Redfin rental estimate

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Market trends in 63366, MO

Last updated October 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

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COMING SOON
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OPEN SUN, 1PM TO 3PM
$250,000
3 beds1 bath1,210 sq ft
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See all

Provided by Redfin

Sale history for 154 Keystone Ridge Dr

Tax history for 154 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

3.5

Stories

Lot width

—

Lot depth

—

Lot size

0.27 Acres

Year renovated

—

Sq. Ft.

3,036

Year built

2018

Style

Single Family Residential

County

St. Charles County

APN

2-0048-C585-00-0056.0000000

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Oct 26, 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 7, 2019 • Final

Residential new construction - single- multi-family / mobile home / modular

New construction

Feb 24, 2019 • Final

Temporary electric

Install a temporary electrical pole.

Electrical

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
Covered Spaces: 2
Parking Features: Attached Garage, Garage Door Opener
Garage Spaces: 2
Carport Spaces: 0
Has Attached Garage
Has Garage

Interior

Bedroom Information
# of Bedrooms: 5
# of Bedrooms Main: 0

Bathroom Information
# of Full Baths (Total): 3
# of Half Baths (Total): 1
# of Main Level Bathrooms (Total): 1
# of Main and Upper Bathrooms: 3
Main Level # of Half Bathrooms: 1

Room 1 Information
Room Type: Master Bedroom
Room Dimensions: 17x16
Room Length: 17
Room Width: 16
Room Level: Third or Upper

Room 2 Information
Room Type: Bedroom
Room Dimensions: 10x13
Room Length: 10
Room Width: 13
Room Level: Third or Upper

Room 3 Information
Room Type: Bedroom
Room Dimensions: 10x11
Room Length: 10
Room Width: 11
Room Level: Third or Upper

Room 4 Information
Room Type: Bedroom
Room Dimensions: 10x12
Room Length: 10
Room Width: 12
Room Level: Third or Upper

Room 5 Information
Room Type: Bedroom
Room Dimensions: 14x13
Room Length: 14
Room Width: 13
Room Level: First or Lower

Room 6 Information
Room Type: Living Room
Room Dimensions: 10x13
Room Length: 10
Room Width: 13
Room Level: Second or Main

Room 7 Information
Room Type: Dining Room
Room Dimensions: 10x14
Room Length: 10
Room Width: 14
Room Level: Second or Main

Room 8 Information
Room Type: Kitchen
Room Dimensions: 12x15
Room Length: 12
Room Width: 15
Room Level: Second or Main

Room 9 Information
Room Type: Breakfast Room
Room Dimensions: 11x12
Room Length: 11
Room Width: 12
Room Level: Second or Main

Room 10 Information
Room Type: Family Room
Room Dimensions: 20x15
Room Length: 20
Room Width: 15
Room Level: Second or Main

Room 11 Information
Room Type: Bonus Room
Room Dimensions: 15x7
Room Length: 15
Room Width: 7
Room Level: First or Lower

Basement Information
Has Basement
Basement Features: Concrete, Bathroom in LL, Egress Window(s), Full, Partially Finished, Concrete, Sump Pump, Walk-Out Access

Other Rooms Information
# of Rooms: 11

Fireplace Information
Fireplace Features: None

Heating & Cooling
Has Heating
Heating Information: Forced Air, Zoned
Cooling Information: Ceiling Fan(s), Electric, Dual, Zoned

Interior Features
Interior Features: High Ceilings, Open Floorplan, Carpets, Window Treatments, Walk-in Closet(s)
Window Features: Panel Door(s), Sliding Glass Doors
Appliances: Dishwasher, Disposal, Microwave, Electric Oven, Refrigerator, Stainless Steel Appliance(s)

Exterior

Building Information
Construction Materials: Vinyl Siding

Property Information
Ownership Type: Private
Property Type: Residential
Property Sub Type: Residential
Above Grade Finished Area: 2,780
Above Grade Finished Area Source: Public Records
Below Grade Finished Area: 430
Below Grade Finished Area Source: Owner
Model: Suquoia

Lot Information
Lot Features: Backs to Comm. Grnd, Backs to Trees/Woods, Corner Lot, Sidewalks, Streetlights
Lot Size Acres: 0.272
Lot Size Dimensions: 11866
Lot Size Source: County Records

Financial

Tax Information
Tax Annual Amount: $4,177
Tax Year: 2019

Utilities

Utility Information
Water Source: Public
Sewer: Public Sewer

Location

HOA Information
Association Fee: $320

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: From I-70 heading West – Turn Right onto Lake St Louis Blvd (exit 214) – Turn Left onto Keystone Ridge Dr – House is on the Left (corner lot).

Public facts

Beds: 4
Baths: 3.5
Sq. Ft.: 3,036
Stories: 2.0
Lot Size: 0.27 acres
Style: Single Family Residential
Year Built: 2018
Year Renovated: —
County: St. Charles County
APN: 2-0048-C585-00-0056.0000000

Home facts updated by county records on Oct 26, 2026

Other

Listing Date Information
Expected Active Date: Wednesday, July 22, 2020

Home Information
Living Area: 3210
Builder Name: McBride
Levels: Two

Around this home

Schools

Flint Hill Elementary

Public K-5 • Assigned • 4.2mi

7/10

Ft. Zumwalt North Middle School

Public 6-8 • Assigned • 4.6mi

8/10

Ft. Zumwalt North High School

Public 9-12 • Assigned • 6.1mi

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

$428,000 – $519,000

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Home values near 154 Keystone Ridge Dr

Data from public records.

Address	Redfin Estimate
141 Keystone Ridge Drive, O Fallon, MO 4 Beds \| 2.5 Baths \| 3094 Sq. Ft.	$469,025
147 Keystone Ridge Drive, O Fallon, MO 4 Beds \| 2 Baths \| 1840 Sq. Ft.	$399,258

Address	Redfin Estimate
143 Keystone Ridge Drive, O Fallon, MO 4 Beds \| 2.5 Baths \| 2538 Sq. Ft.	$423,030
149 Keystone Ridge Drive, O Fallon, MO 3 Beds \| 2 Baths \| 1609 Sq. Ft.	$375,288

Address	Redfin Estimate
145 Keystone Ridge Drive, O Fallon, MO 3 Beds \| 2 Baths \| 2002 Sq. Ft.	$420,237
151 Keystone Ridge Drive, O Fallon, MO 4 Beds \| 2.5 Baths \| 2674 Sq. Ft.	$468,588

Property information provided by MARIS as Distributed by MLS Grid when last listed in 2020. This data may not match . Learn more.

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GreatSchools Ratings provided by GreatSchools.org.

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About this home

Redfin Estimate

Earn from this home

Market trends in 63366, MO

Sale history for 154 Keystone Ridge Dr

Tax history for 154 Keystone Ridge Dr

Public record

Property details

Around this home

Schools

Lifestyle

Climate risks

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 63366

Home values near 154 Keystone Ridge Dr

More real estate resources