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Luxury Homes in O'Fallon, IL

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1 listing

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3 beds New construction With a pool

Luxury Homes in O'Fallon, IL

Luxury Homes in O'Fallon, IL

1 Listing

Luxury Homes in O'Fallon, IL

1 Listing

Your local brokerage

JJ

Jeffrey Jonas

Realty.com

Lic. #471.004966

Price Reduced90Active
$1,750,000
6 bd · 8 ba · 8,418 sqft
115 Cobblestone Hills Road, O'Fallon, IL
Margaret Riley · Nester Realty
Your local brokerage
Jeffrey Jonas
Realty.com
Lic. #471.004966
Call Jeffrey

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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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By feature

New construction
With a pool

Listing data & MLS disclosures

MARIS MLS: Based on information submitted to the MLS GRID as of 2026-08-14 05:30:38 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, IL community profile

Population: 31,290
Median income: $101,491
Housing units: 12,629
People per sq. mi.: 1,967.9
Area: 15.9 sq. mi.

Source: HJN community data

O'Fallon housing market

August 2026 · This period is still settling

Selling at 100.0% of asking price

Sales here are closing essentially at asking. MLS · 28 sales · as of Aug 31, 2026

Homes that sold · County records, as of Aug 31, 2026

Median sale price: $367,000$262,500–$554,000 typical range
Price per sq. ft.: $274
Sales: 35
Paid in cash: 20.0%

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

Median days on market: 33 days

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

Year-over-year: -9.7%