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New Construction Homes in O'Fallon, MO — Page 2

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3 beds New construction With a pool

New Construction Homes in O'Fallon, MO

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24 of 153 Listings

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24 of 153 Listings

19Active
$295,900
2 bd · 2 ba · 1,214 sqft
2 Carolina at Post Farms Meadows, O'Fallon, MO
Pamela Chyba · ListWithFreedom.com Inc
27Active
$427,900
4 bd · 3 ba · 2,539 sqft
2 Hermitage II at Post Farms Enclave, O'Fallon, MO
Pamela Chyba · ListWithFreedom.com Inc
20Active
$310,900
3 bd · 2 ba · 1,478 sqft
2 Belmont at Post Farms Meadows, O'Fallon, MO
Pamela Chyba · ListWithFreedom.com Inc

18Active
$285,900
2 bd · 2 ba · 1,252 sqft
2 Arlington at Post Farms Meadows, O'Fallon, MO
Pamela Chyba · ListWithFreedom.com Inc
23Active
$436,900
3 bd · 2 ba · 1,989 sqft
2 Maple Expanded at Post Farms Enclave, O'Fallon, MO
Pamela Chyba · ListWithFreedom.com Inc
38Active
$464,900
4 bd · 3 ba · 2,904 sqft
2 Pin Oak at Post Farms Enclave, O'Fallon, MO
Pamela Chyba · ListWithFreedom.com Inc
34Active
$448,900
4 bd · 3 ba · 2,940 sqft
2 Nottingham at Post Farms Enclave, O'Fallon, MO
Pamela Chyba · ListWithFreedom.com Inc
24Active
$305,900
3 bd · 2 ba · 1,566 sqft
2 Burlington at Post Farms Meadows, O'Fallon, MO
Pamela Chyba · ListWithFreedom.com Inc
26Active
$432,900
4 bd · 3 ba · 2,784 sqft
2 Sequoia at Post Farms Enclave, O'Fallon, MO
Pamela Chyba · ListWithFreedom.com Inc
22Active
$413,082
3 bd · 2 ba · 1,539 sqft
102 Windrow Drive, O'Fallon, MO
Pamela Chyba · ListWithFreedom.com Inc
19Active
$638,900
3 bd · 2 ba · 2,496 sqft
1 Arlington II - E4 @ Harvest Heritage, O'Fallon, MO
Kelly Boehmer · Berkshire Hathaway HomeServices Select Properties
29Active
$722,900
4 bd · 4 ba · 3,752 sqft
1 Wyndham E3 @ Harvest Heritage, O'Fallon, MO
Kelly Boehmer · Berkshire Hathaway HomeServices Select Properties
29Active
$731,900
4 bd · 4 ba · 3,768 sqft
1 Wyndham E4 @ Harvest Heritage, O'Fallon, MO
Kelly Boehmer · Berkshire Hathaway HomeServices Select Properties
17Active
$724,900
4 bd · 3 ba · 3,720 sqft
1 Waterford Ii-E3 @Harvest Heritage, O'Fallon, MO
Kelly Boehmer · Berkshire Hathaway HomeServices Select Properties
Price Reduced11Active
$550,900
5 bd · 3 ba · 2,790 sqft
201 Townshead Way, O'Fallon, MO
Alexander Hencheck · FH Realty
13Active
$674,900
4 bd · 4 ba · 2,599 sqft
220 Kerry Downs Drive, O'Fallon, MO
Alexander Hencheck · FH Realty
10Active
$599,900
3 bd · 3 ba · 2,483 sqft
131 Cardow Drive, O'Fallon, MO
Alexander Hencheck · FH Realty
22Active
$417,352
3 bd · 3 ba · 1,728 sqft
542 Apple Orchard Lane, O'Fallon, MO
Pamela Chyba · ListWithFreedom.com Inc
14Active
$493,791
4 bd · 3 ba · 1,860 sqft
535 Wheatfield Circle, O'Fallon, MO
Kelly Boehmer · Berkshire Hathaway HomeServices Select Properties
16Active
$571,602
3 bd · 3 ba · 2,209 sqft
734 Barnwood Hill Drive, O'Fallon, MO
Kelly Boehmer · Berkshire Hathaway HomeServices Select Properties
19Active
$338,757
2 bd · 3 ba · 1,200 sqft
166 Sunset Terrace Drive, O'Fallon, MO
Pamela Chyba · ListWithFreedom.com Inc
21Active
$297,387
2 bd · 2 ba · 808 sqft
160 Sunset Terrace Drive, O'Fallon, MO
Pamela Chyba · ListWithFreedom.com Inc
20Active
$330,288
2 bd · 3 ba · 1,200 sqft
162 Sunset Terrace Drive, O'Fallon, MO
Pamela Chyba · ListWithFreedom.com Inc
Price Reduced56Active
$819,500
4 bd · 4 ba · 3,720 sqft
3 Warchol Court, O'Fallon, MO
Ryan Grimm · Berkshire Hathaway HomeServices Select Properties

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Listing data & MLS disclosures

MARIS MLS: Based on information submitted to the MLS GRID as of 2026-09-14 14:17:52 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 housing market

August 2026 · This period is still settling

Homes that sold · County records, as of Aug 11, 2026

Median sale price: $358,904$247,046–$435,021 typical range
Price per sq. ft.: $157
Sales: 46
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: -1.8%

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.

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

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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.