New Construction Homes in O&#x27;Fallon, MO

Lynne Schlereth

Preferred Rate

NMLS #2378688

23Active

Your local team in O Fallon

Thomas O'Leary

Realty.com

Lic. #2020001504

Lynne Schlereth

Preferred Rate

NMLS #2378688

$442,900

3 bd · 2 ba · 1,734 sqft

0 Audubon @ Harvest, O'Fallon, MO

Gia Linville · Consort Realty, LLC

27Active

$399,900

3 bd · 2 ba · 1,559 sqft

0 Covington @ Harvest, O'Fallon, MO

Gia Linville · Consort Realty, LLC

33Active

$455,900

3 bd · 3 ba · 2,219 sqft

0 Ashton @ Harvest, O'Fallon, MO

Gia Linville · Consort Realty, LLC

Your local team in O Fallon

Thomas O'Leary

Realty.com

Lic. #2020001504

Lynne Schlereth

Preferred Rate

NMLS #2378688

38Active

$477,900

4 bd · 3 ba · 2,605 sqft

0 Stamford @ Harvest, O'Fallon, MO

Gia Linville · Consort Realty, LLC

Price Reduced51Active

$599,900

4 bd · 3 ba · 2,749 sqft

719 Southerland Drive, O'Fallon, MO

Alexander Hencheck · FH Realty

Price Reduced1Active

$525,000

4 bd · 3 ba · 2,334 sqft

214 Cambium Court, O'Fallon, MO

Mike Price · Lombardo Homes of St. Louis, LLC

24Active

$459,231

4 bd · 3 ba · 1,981 sqft

105 Windrow Drive, O'Fallon, MO

Pamela Chyba · ListWithFreedom.com Inc

1Active

$555,900

4 bd · 2 ba · 2,138 sqft

1 The Carter at The Grove at Riverdale, O'Fallon, MO

Kristin Gansman · STL Buy & Sell, LLC

$429,900

3 bd · 2 ba · 1,809 sqft

1585 Belleau Creek Road 1 a, O'Fallon, MO

Lynn Storey · Hero Realty, LLC

$429,900

3 bd · 2 ba · 1,809 sqft

1589 Belleau Creek Road 1 B, O'Fallon, MO

Lynn Storey · Hero Realty, LLC

$429,900

3 bd · 2 ba · 1,809 sqft

1595 Belleau Creek Road 2 a, O'Fallon, MO

Lynn Storey · Hero Realty, LLC

$429,900

3 bd · 2 ba · 1,809 sqft

1599 Belleau Creek Road 2 B, O'Fallon, MO

Lynn Storey · Hero Realty, LLC

13Active

$513,990

3 bd · 3 ba · 2,632 sqft

1 Tbb Jackson@Creekside at Sommers, O'Fallon, MO

Amanda Alejandro · Realty Shop

12Active

$480,990

4 bd · 3 ba · 2,285 sqft

1 Tbb Quincy@ Creekside At Sommers, O'Fallon, MO

Amanda Alejandro · Realty Shop

Price Reduced19Active

$369,900

3 bd · 2 ba · 1,539 sqft

540 Apple Orchard Lane, O'Fallon, MO

Pamela Chyba · ListWithFreedom.com Inc

Price Reduced22Active

$279,900

2 bd · 3 ba · 1,193 sqft

308 Fall Harvest Parkway, O'Fallon, MO

Pamela Chyba · ListWithFreedom.com Inc

Price Reduced21Active

$309,900

2 bd · 3 ba · 1,421 sqft

314 Fall Harvest Parkway, O'Fallon, MO

Pamela Chyba · ListWithFreedom.com Inc

29Active

$387,900

4 bd · 3 ba · 2,784 sqft

2 Sequoia at Harvest Estates, O'Fallon, MO

Pamela Chyba · ListWithFreedom.com Inc

32Active

$419,900

4 bd · 4 ba · 2,904 sqft

2 Pin Oak at Harvest Estates, O'Fallon, MO

Pamela Chyba · ListWithFreedom.com Inc

34Active

$403,900

4 bd · 3 ba · 2,940 sqft

2 Nottingham at Harvest Estate, O'Fallon, MO

Pamela Chyba · ListWithFreedom.com Inc

Price Reduced30Active

$449,900

4 bd · 3 ba · 2,784 sqft

223 Windmill View Drive, O'Fallon, MO

Pamela Chyba · ListWithFreedom.com Inc

Price Reduced40Active

$484,900

3 bd · 2 ba · 1,730 sqft

207 Townshead Way, O'Fallon, MO

Alexander Hencheck · FH Realty

20Active

$352,044

2 bd · 2 ba · 1,214 sqft

46 Integrity Court, O'Fallon, MO

Pamela Chyba · ListWithFreedom.com Inc

35Active

$452,990

3 bd · 2 ba · 1,612 sqft

1 Tbb Westbrook @ Creekside Sommers, O'Fallon, MO

Amanda Alejandro · Realty Shop

1…3 4 5…7

Listing data & MLS disclosures

MARIS MLS: Based on information submitted to the MLS GRID as of 2026-09-22 17:00:38 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 housing market

August 2026 · This period is still settling

Selling at 100.0% of asking price

Sales here are closing essentially at asking. MLS · 111 sales · as of Aug 31, 2026

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

Median sale price: $363,348$247,046–$435,021 typical range
Price per sq. ft.: $155
Sales: 42
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: 9 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.

Your local team in O Fallon

Thomas O'Leary

Realty.com

Lic. #2020001504

Lynne Schlereth

Preferred Rate

NMLS #2378688