Homes for sale under $800k in O'Fallon, MO

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NEW CONSTRUCTION

ABOUT THIS HOME
Homes for sale under $800k in O'Fallon, MO
Great Location! Welcome to The Streets of Caledonia by Lombardo Homes. The Mercer is a ranch home featuring 3 bedrooms, 2 bathrooms, and more than 1,500 sq. ft. of living space. Interior features include a split bedroom layout to allow for privacy, large open kitchen with a center island and walk-in pantry. Lombardo Homes gives you the opportunity to customize this floor plan to fit all your wants and needs! This is the * Base Price * for the MERCER floor plan. Come customize your dream home and discover the Lombardo Homes difference. Your options are unlimited! The Streets of Caledonia provides homeowners with a wealth of amenities, including a beautifully decorated clubhouse with a full

$416,000

3 beds2 baths1,539 sq ft

0 Tbb Mercer @caledonia, O Fallon, MO 63368

Community pool • Split bedroom layout • Large open kitchen

READY TO BUILD

ABOUT THIS HOME
Homes for sale under $800k in O'Fallon, MO
The Stansbury is a ranch home with 2 bedrooms, 2 bathrooms, and more than 1,900 sq. ft. of living space. Interior features include a study off the foyer, spacious kitchen with a center island and walk-in pantry opening to the nook and great room, family entry, and a two-car garage. The primary suite with a full bath and a separated walk-in closet is on the opposite side of the secondary bedroom, providing a level of privacy. A covered patio is off the nook. Looking for a new home in the greater St. Louis area? Contact our sales team to learn more about the Stansbury! We can't wait to meet with you and discuss building your dream home with Lombardo Homes!

$415,000

2 beds2 baths1,936 sq ft

The Stansbury Plan, Wentzville, MO 63385

Study off the foyer • Spacious kitchen • Covered patio

Listing provided by Zillow

ABOUT THIS HOME
Homes for sale under $800k in O'Fallon, MO
Stunning, Move-In Ready Home with Over 2,800 Sq Ft of Finished Living Space! Beautifully updated from top to bottom over the last 10 years, this home offers the perfect blend of modern style and everyday comfort. The open main-floor layout boasts 1,773 sq ft, highlighted by a vaulted great room with a cozy gas fireplace with stone accents and gorgeous wood-plank ceramic tile flooring throughout the living areas. The updated kitchen is a true showstopper—featuring 42" cabinetry, granite countertops, a center island, a chef-worthy gas range, and stainless steel appliances. French doors from the breakfast room open to a fully fenced backyard backing to serene natural views. Relax in

$415,000

3 beds3 baths2,800 sq ft

209 Autumn Rose Ct, O Fallon, MO 63368

0.28 acre lot • 2 garage spots • Built 1998

READY TO BUILD

ABOUT THIS HOME
Homes for sale under $800k in O'Fallon, MO
The Harper by Fischer Homes offers a thoughtfully designed layout with features that enhance both style and functionality. The first floor includes an open-concept kitchen, dining, and family room, creating a seamless flow for everyday living and entertaining. The oversized garage provides additional storage, with options for a 4x16 garage expansion or a covered porch to enhance outdoor living. An optional electric fireplace adds warmth and charm to the family room. Upstairs, the home includes three bedrooms, a loft, and a convenient second-floor laundry. The owners suite features a private bath and walk-in closet, with customizable options such as a 5-foot shower or an additional window fo

$414,900

3 beds2.5 baths1,408 sq ft

Harper Plan, Ofallon, MO 63368

Open kitchen • Versatile loft • 2 garage spots

Listing provided by Zillow

READY TO BUILD

ABOUT THIS HOME
Homes for sale under $800k in O'Fallon, MO
The Carlton is a ranch home with 2 bedrooms, 2 bathrooms, and more than 1,700 sq. ft. of living space. Interior features include a spacious great room that opens to the kitchen and nook, family entry with walk-in closet and laundry entry, study near the foyer, primary suite with a private full bath and walk-in closet, and two-car garage. A secondary bedroom is opposite the primary suite doe maximum privacy. Looking for a new home in the greater St. Louis area? Contact our sales team to learn more about the Carlton! We can't wait to meet with you and discuss building your dream home with Lombardo Homes!

$413,000

2 beds2 baths1,746 sq ft

The Carlton Plan, Sylizj Dardenne Prairie, MO 63368

2 garage spots • Listed 11 days

Listing provided by Zillow

Property at 627 W Falls Ct, O Fallon, MO 63368, 4 beds, 3.5 baths

$409,900

4 beds3.5 baths3,136 sq ft

627 W Falls Ct, O Fallon, MO 63368

Property at Cumberland Plan, O'fallon, MO 63366, 3 beds, 2 baths

$406,900

3 beds2 baths2,439 sq ft

Cumberland Plan, O'fallon, MO 63366

Listing provided by Zillow

Property at The Berkshire Plan, Wentzville, MO 63385, 3 beds, 2 baths

$405,000

3 beds2 baths1,808 sq ft

The Berkshire Plan, Wentzville, MO 63385

Listing provided by Zillow

Property at 243 Greenshire Ln, Dardenne Prairie, MO 63368, 3 beds, 3.5 baths

$399,900

3 beds3.5 baths2,558 sq ft

243 Greenshire Ln, Dardenne Prairie, MO 63368

Property at 1148 Duxbury Ln, O Fallon, MO 63366, 4 beds, 3 baths

$399,900

4 beds3 baths1,634 sq ft

1148 Duxbury Ln, O Fallon, MO 63366

Property at DaVinci Plan, O'fallon, MO 63366, 3 beds, 2 baths

$399,900

3 beds2 baths1,730 sq ft

DaVinci Plan, O'fallon, MO 63366

Listing provided by Zillow

Property at The Columbia Plan, Ofallon, MO 63366, 2 beds, 2 baths

$399,850

2 beds2 baths1,583 sq ft

The Columbia Plan, Ofallon, MO 63366

Listing provided by Zillow

Property at 1 Tbb Mcknight @ Vdp, Dardenne Prairie, MO 63368, 2 beds, 2 baths

$398,990

2 beds2 baths1,600 sq ft

1 Tbb Mcknight @ Vdp, Dardenne Prairie, MO 63368

Property at 1 Tbb Warson @ Vdp, Dardenne Prairie, MO 63368, 2 beds, 2 baths

$398,990

2 beds2 baths1,600 sq ft

1 Tbb Warson @ Vdp, Dardenne Prairie, MO 63368

Property at 1 Tbb Clayton @ Vdp, Dardenne Prairie, MO 63368, 2 beds, 2 baths

$398,990

2 beds2 baths1,600 sq ft

1 Tbb Clayton @ Vdp, Dardenne Prairie, MO 63368

Property at Hickory Plan, O'fallon, MO 63366, 3 beds, 2.5 baths

$397,900

3 beds2.5 baths2,394 sq ft

Hickory Plan, O'fallon, MO 63366

Listing provided by Zillow

Property at Ash Plan, O'fallon, MO 63366, 3 beds, 3.5 baths

$396,900

3 beds3.5 baths2,456 sq ft

Ash Plan, O'fallon, MO 63366

Listing provided by Zillow

Property at 579 Misty Mountain Dr, O Fallon, MO 63368, 3 beds, 3 baths

$396,500

3 beds3 baths3,111 sq ft

579 Misty Mountain Dr, O Fallon, MO 63368

Property at The Glenwyck Plan, Wentzville, MO 63385, 2 beds, 2 baths

$394,000

2 beds2 baths1,626 sq ft

The Glenwyck Plan, Wentzville, MO 63385

Listing provided by Zillow

Property at Yosemite Plan, O'fallon, MO 63366, 3 beds, 2.5 baths

$392,900

3 beds2.5 baths2,258 sq ft

Yosemite Plan, O'fallon, MO 63366

Listing provided by Zillow

Property at 0 Lot 2 Tom Ginnever Ave, O'fallon, MO 63366

$392,040

0 beds— baths— sq ft

0 Lot 2 Tom Ginnever Ave, O'fallon, MO 63366

Property at 2737 Red Cedar Parc Dr, O Fallon, MO 63368, 5 beds, 3 baths

$390,000

5 beds3 baths3,540 sq ft

2737 Red Cedar Parc Dr, O Fallon, MO 63368

Property at The Carlton Plan, Wentzville, MO 63385, 2 beds, 2 baths

$388,000

2 beds2 baths1,746 sq ft

The Carlton Plan, Wentzville, MO 63385

Listing provided by Zillow

Property at 506 Country Landing Dr, Lake Saint Louis, MO 63367, 3 beds, 2 baths

$385,000

3 beds2 baths1,559 sq ft

506 Country Landing Dr, Lake Saint Louis, MO 63367

Property at Greenbriar Plan, O'fallon, MO 63366, 3 beds, 2 baths

$382,900

3 beds2 baths1,983 sq ft

Greenbriar Plan, O'fallon, MO 63366

Listing provided by Zillow

Property at Wesley Plan, O'fallon, MO 63366, 3 beds, 2.5 baths

$379,900

3 beds2.5 baths1,842 sq ft

Wesley Plan, O'fallon, MO 63366

Listing provided by Zillow

Property at Magnolia Plan, O'fallon, MO 63366, 3 beds, 2 baths

$377,900

3 beds2 baths1,865 sq ft

Magnolia Plan, O'fallon, MO 63366

Listing provided by Zillow

Property at 307 Newbridge Way, O Fallon, MO 63368, 3 beds, 3.5 baths

$375,000

3 beds3.5 baths1,966 sq ft

307 Newbridge Way, O Fallon, MO 63368

Property at 7116 Basswood Dr, O Fallon, MO 63368, 4 beds, 2.5 baths

$375,000

4 beds2.5 baths2,062 sq ft

7116 Basswood Dr, O Fallon, MO 63368

Property at 2121 Mcgregor Cir, O Fallon, MO 63368, 2 beds, 2 baths

$375,000

2 beds2 baths1,750 sq ft

2121 Mcgregor Cir, O Fallon, MO 63368

Property at 471 Bellingham Ct, Saint Charles, MO 63304, 4 beds, 2.5 baths

$375,000

4 beds2.5 baths3,130 sq ft

471 Bellingham Ct, Saint Charles, MO 63304

Property at 2340 Oak Dr, O Fallon, MO 63368, 4 beds, 2.5 baths

$375,000

4 beds2.5 baths1,836 sq ft

2340 Oak Dr, O Fallon, MO 63368

Property at 7 Park City Ct, O Fallon, MO 63368, 4 beds, 2.5 baths

$374,499

4 beds2.5 baths2,318 sq ft

7 Park City Ct, O Fallon, MO 63368

Property at Holly Plan, O'fallon, MO 63366, 3 beds, 2.5 baths

$371,900

3 beds2.5 baths1,874 sq ft

Holly Plan, O'fallon, MO 63366

Listing provided by Zillow

Property at Hawthorn Plan, O'fallon, MO 63366, 3 beds, 2 baths

$369,900

3 beds2 baths1,773 sq ft

Hawthorn Plan, O'fallon, MO 63366

Listing provided by Zillow

Property at 211 Butternut Stage Dr, Saint Peters, MO 63376, 4 beds, 3 baths

$369,900

4 beds3 baths1,678 sq ft

211 Butternut Stage Dr, Saint Peters, MO 63376

Property at Blossom Plan, O'fallon, MO 63366, 3 beds, 2.5 baths

$367,900

3 beds2.5 baths2,059 sq ft

Blossom Plan, O'fallon, MO 63366

Listing provided by Zillow

Property at 7103 Curtis Dr Unit 795A, Dardenne Prairie, MO 63368, 3 beds, 3 baths

$365,000

3 beds3 baths2,716 sq ft

7103 Curtis Dr Unit 795A, Dardenne Prairie, MO 63368

Property at 34 Pheasant Ring Dr, Saint Peters, MO 63376, 3 beds, 2.5 baths

$364,787

3 beds2.5 baths1,474 sq ft

34 Pheasant Ring Dr, Saint Peters, MO 63376

Listing provided by Zillow

Property at Danville Plan, O'fallon, MO 63366, 3 beds, 2.5 baths

$362,900

3 beds2.5 baths1,740 sq ft

Danville Plan, O'fallon, MO 63366

Listing provided by Zillow

Property at Laurel III Plan, O'fallon, MO 63366, 3 beds, 2 baths

$357,352

3 beds2 baths1,419 sq ft

Laurel III Plan, O'fallon, MO 63366

Listing provided by Zillow

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Based on information submitted to the MLS GRID as of Thu Nov 27 2025. 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.

Homes for sale under $800k in O'Fallon

There are currently 411 homes for sale under $800k in O'Fallon. Some of these homes are "Hot Homes," meaning they're likely to sell quickly. Most homes for sale in O'Fallon stay on the market for 30 days and receive 4 offers. Popular neighborhoods include La Paloma, Wyndgate Village, The Villages at Bainbridge, Wing Haven, and Ofallon Hills. This map is refreshed with the newest listings in O'Fallon every 15 minutes.

In the past month, 99 homes have been sold in O'Fallon. In addition to houses in O'Fallon, there were also 12 condos, 14 townhouses, and 2 multi-family units for sale in O'Fallon last month. O'Fallon is a not walkable city in Missouri with a Walk Score of 22. O'Fallon is home to approximately 77,225 people and 29,122 jobs. Find your dream home in O'Fallon using the tools above. Use filters to narrow your search by price, square feet, beds, and baths to find homes that fit your criteria. Our top-rated real estate agents in O'Fallon are local experts and are ready to answer your questions about properties, neighborhoods, schools, and the newest listings for sale in O'Fallon. Our O'Fallon real estate stats and trends will give you more information about home buying and selling trends in O'Fallon. If you're looking to sell your home in the O'Fallon area, our listing agents can help you get the best price. Redfin is redefining real estate and the home buying process in O'Fallon with industry-leading technology, full-service agents, and lower fees that provide a better value for Redfin buyers and sellers.

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Homes for sale under $800k in O'Fallon, MO

Homes for sale under $800k in O'Fallon

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