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Start here

Homes for sale by state
Home buying tips
Before you start looking
The buying timeline

Afford it

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Mortgage calculator
How much can I afford?
Get pre-approved

Make the deal

Writing a winning offer
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Find a buyer's agent

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3 beds New construction With a pool

Luxury Homes in O'Fallon, MO

3 listings

Luxury Homes in O'Fallon, MO

Luxury Homes in O'Fallon, MO

3 Listings

Luxury Homes in O'Fallon, MO

3 Listings

91Active
$1,399,000

Your local team in O Fallon

TO

Thomas O'Leary

Realty.com

Lic. #2020001504

LS

Lynne Schlereth

Preferred Rate

NMLS #2378688

5 bd · 4 ba · 5,850 sqft

3150 Dyer Road, O'Fallon, MO

Wioleta Wagrodzki · Elevate Realty, LLC

$2,895,000

5 bd · 6 ba · 7,657 sqft

1252 Pinehurst Club Court, O'Fallon, MO

Madison Hayes · Berkshire Hathaway HomeServices Select Properties

$1,195,000

5 bd · 4 ba · 4,366 sqft

504 Greengage Timber Drive, O'Fallon, MO

Teddy Johnlikes · Coldwell Banker Realty - Gundaker

Explore O Fallon homes

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L. Custen Realty, Inc. d/b/a Realty.com/L. Custen Realty CT, LLC d/b/a Realty.com (Tom O’Leary-Broker)(CT properties only), 8323 Southwest Freeway, Suite 900, Houston, Texas 77074

The information provided by this website is for the personal, non-commercial use of consumers and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Listing data is derived from various Multiple Listing Services; each source MLS and its required disclaimer are shown with the listings on the applicable page. Realty.com is an independently owned and operated brokerage.

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Your local team in O Fallon

TO

Thomas O'Leary

Realty.com

Lic. #2020001504

LS

Lynne Schlereth

Preferred Rate

NMLS #2378688

Listing data & MLS disclosures

MARIS MLS: Based on information submitted to the MLS GRID as of 2026-09-17 20:12:59 UTC. All data is obtained from various sources and may not have been verified by broker or MLS GRID. Supplied Open House Information is subject to change without notice. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information.

O'Fallon, MO community profile

Population: 96,497
Median income: $101,965
Housing units: 36,476
People per sq. mi.: 3,112.8
Area: 31 sq. mi.

Source: HJN community data

O'Fallon housing market

August 2026 · This period is still settling

Homes that sold · County records, as of Aug 25, 2026

Median sale price: $355,015$274,720–$454,500 typical range
Price per sq. ft.: $162
Sales: 81
Paid in cash: 0.0%

Homes on the market · MLS, as of Aug 31, 2026

Median list price: $416,000
Homes for sale: 186

Median days on market

13 days

Price trend · Assessor repeat sales, as of Aug 31, 2026

Year-over-year: -4.0%

Housing stock — every home in the area, not only the ones selling or listed · Assessor records, as of Jul 29, 2026

Median home size: 2,053 sq. ft.