$874,900
3 Rainier Court
O’Fallon, MO, 63366
Welcome to your DREAM HOME, where country living meets convenience, just minutes from town. This spectacular custom-built, mostly brick ranch sits on a 3-acre lot in highly sought-after St Paul. It is nestled on a quiet cul-de-sac in the prestigious Summit Estates Subdivision. Boasting nearly 5,000 finished square feet, a 4-car oversized garage and an open floor plan, this home offers luxury, serenity, and ample space for both entertaining and daily living. —–
Step inside to discover soaring 11-foot ceilings and beautiful hardwood floors throughout much of the main level. The expansive great room, featuring a gas fireplace, opens to a massive 56’ x 14’ deck that overlooks the private backyard. Adjacent to the great room is a formal living room and dining room, ideal for hosting guests. The gourmet kitchen impresses with rich hickory cabinets, granite countertops, a double oven, pantry, stainless steel appliances, and a spacious bay-window breakfast area. (Dishwasher & Refrigerator are 1 yr old). —–
The luxurious primary suite provides a true retreat experience, complete with a gas fireplace, private sitting area, two walk-in closets, and a BRAND-NEW SPA LIKE BATHROOM featuring dual vanities, quartz counters, a soaking tub, and an oversized walk-in shower. Private deck access from the primary suite leads directly to the relaxing two-year-old hot tub or a place to sit & enjoy the birdsong & your morning coffee. A thoughtful split-bedroom design offers two additional generously sized main-level bedrooms each with their own full baths, and a bright office / den with a bay window and peaceful wooded view. —–
Downstairs, the walk-out lower level is designed for entertaining, offering a spacious family room, billiards and game area, impressive wet bar, two additional large bedrooms—including one wired for a media or theater room—another full bath, and abundant storage. Stepping out from this level, you’ll find a sprawling patio that seamlessly transitions to a fully fenced backyard, bordered by tranquil woods for unparalleled privacy. The expansive outdoor space is perfect for hosting memorable family barbecues, providing ample room for gatherings both large and small. Children and dogs alike will enjoy the freedom to play and explore. —–
Additional features include an oversized four-car side-entry garage with new doors and a second staircase to the lower level, a circle driveway with ample parking & aggregate trim, a porte-cochere covered drive through with newer stamped patio at the front entry to keep you protected from the elements, a front yard in-ground sprinkler system, newer retaining wall, attic fan, water softener, dual HVAC systems and water heaters, and a main-floor laundry room with laundry sink & additional hookups on the lower level. Included with the home are the two-year-old hot tub, one-year-old stainless-steel refrigerator, one-year-old washer and dryer, and a lower-level wine cooler. This exceptional property is truly a must-see, set up your tour today!
Step inside to discover soaring 11-foot ceilings and beautiful hardwood floors throughout much of the main level. The expansive great room, featuring a gas fireplace, opens to a massive 56’ x 14’ deck that overlooks the private backyard. Adjacent to the great room is a formal living room and dining room, ideal for hosting guests. The gourmet kitchen impresses with rich hickory cabinets, granite countertops, a double oven, pantry, stainless steel appliances, and a spacious bay-window breakfast area. (Dishwasher & Refrigerator are 1 yr old). —–
The luxurious primary suite provides a true retreat experience, complete with a gas fireplace, private sitting area, two walk-in closets, and a BRAND-NEW SPA LIKE BATHROOM featuring dual vanities, quartz counters, a soaking tub, and an oversized walk-in shower. Private deck access from the primary suite leads directly to the relaxing two-year-old hot tub or a place to sit & enjoy the birdsong & your morning coffee. A thoughtful split-bedroom design offers two additional generously sized main-level bedrooms each with their own full baths, and a bright office / den with a bay window and peaceful wooded view. —–
Downstairs, the walk-out lower level is designed for entertaining, offering a spacious family room, billiards and game area, impressive wet bar, two additional large bedrooms—including one wired for a media or theater room—another full bath, and abundant storage. Stepping out from this level, you’ll find a sprawling patio that seamlessly transitions to a fully fenced backyard, bordered by tranquil woods for unparalleled privacy. The expansive outdoor space is perfect for hosting memorable family barbecues, providing ample room for gatherings both large and small. Children and dogs alike will enjoy the freedom to play and explore. —–
Additional features include an oversized four-car side-entry garage with new doors and a second staircase to the lower level, a circle driveway with ample parking & aggregate trim, a porte-cochere covered drive through with newer stamped patio at the front entry to keep you protected from the elements, a front yard in-ground sprinkler system, newer retaining wall, attic fan, water softener, dual HVAC systems and water heaters, and a main-floor laundry room with laundry sink & additional hookups on the lower level. Included with the home are the two-year-old hot tub, one-year-old stainless-steel refrigerator, one-year-old washer and dryer, and a lower-level wine cooler. This exceptional property is truly a must-see, set up your tour today!
Property Details
Price:
$874,900
MLS #:
MIS26035863
Status:
Active
Beds:
5
Baths:
4
Type:
Single Family
Subtype:
Single Family Residence
Subdivision:
Summit Estates
Neighborhood:
408fortzumwaltnorth
Listed Date:
Jun 7, 2026
Finished Sq Ft:
4,983
Lot Size:
130,680 sqft / 3.00 acres (approx)
Year Built:
1999
Schools
School District:
Ft. Zumwalt R-II
Elementary School:
Mount Hope Elem.
Middle School:
Ft. Zumwalt North Middle
High School:
Ft. Zumwalt North High
Interior
Above Grade Finished Area
2965
Appliances
Electric Cooktop, Dishwasher, Disposal, Dryer, Microwave, Double Oven, Refrigerator, Washer, Water Softener, Wine Refrigerator
Bathrooms
4 Full Bathrooms
Below Grade Finished Area
2018
Cooling
Attic Fan, Ceiling Fan(s), Central Air, Dual
Fireplaces Total
2
Flooring
Ceramic Tile, Hardwood
Heating
Forced Air, Natural Gas
Laundry Features
Main Level, Sink
Levels
One
Main Level Bedrooms
3
Exterior
Architectural Style
Ranch
Association Amenities
Other
Attached Garage YN
1
Construction Materials
Brick, Vinyl Siding
Exterior Features
Private Yard
Fencing
Back Yard, Privacy
Garage Spaces
4
Lot Features
Cul-De-Sac, Wooded
Parking Spots
6
Parking Total
6
Patio And Porch Features
Covered, Deck, Patio
Roof
Architectural Shingle
Financial
HOA Fee
$750
HOA Fee Frequency
Annually
HOA Includes
Snow Removal
HOA Name
Summit Estate
Tax Year
2025
Taxes
$8,813
Kahn & Busk Real Estate Partners have earned the top team spot at Coldwell Banker Premier Group for several years in a row! We are dedicated to helping our clients with all of their residential real estate needs. Whether you are a first time buyer or looking to downsize, we can help you with buying your next home and selling your current house. We have over 25 years of experience in the real estate industry in Eureka, St. Louis and surrounding areas.
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Current real estate data for Single Family in O’Fallon as of Jun 12, 2026
627
Single Family Listed
137
Avg DOM
186
Avg $ / SqFt
$479,719
Avg List Price
Community
- Address3 Rainier Court O’Fallon MO
- SubdivisionSummit Estates
- CityO’Fallon
- CountySt. Charles
- Zip Code63366
Subdivisions in O’Fallon
- 9080 Vmp Place
- Aberdeen Village C
- Aberdeen Village E
- Alpine Woods
- Amber Meadows
- Amberleigh
- Annabrook #1
- Anton Hoester Estate
- Ashford Place
- Avondale Heights #6
- Bayfield #3
- Bayfield #5
- Belleau Lake Estate #1
- Bluffs At Dames Park
- Boardwalk Gardens
- Boardwalk Meadows
- Boardwalk Meadows- Winghaven
- Bramblett Crossing Condo #3
- Brighton Pt #1
- Brook Hollow #3
- Brookside Forest #3
- Brookside Village
- Brookside Village B #2-A
- Brookside Village B #2-C
- Brownstone Village At Thornbury #1
- Canvas Cove #5
- Carriage Hills #2
- Carriage Hills #3
- Chadwyck #6
- Cherrywood Parc
- Cherrywood Parc #2
- Cherrywood Parc #4
- Cherrywood Parc #5
- Cherrywood Parc #6
- Cobblestone Crossing #1
- Cobblestone Crossing #2
- Columbia Meadows
- Columbia Meadows #1
- Copperfield #5
- Country Side Carpets At Crossings
- Courtyards At Barathaven
- Creekside At Sommers
- Crestwood Manor
- Crossing Village B
- Dogwood Meadows
- Eastbury Village At Thornbury
- Elk Ridge
- Ests At Dames Park #2
- Fieldstone Farms
- Fieldstone Farms #1
- Fieldstone Farms #2
- Fieldstone Farms #6
- Forest Park Add #2
- Forest Park North
- Forest Park Of Ofallon
- Fox Haven
- Fox Haven #2
- Fox Haven #3
- Fox Haven Add
- Glenmaro
- Glenmaro #4
- Golden Oaks #2 Ph2
- Harvest
- Harvest – Cottages
- Harvest – Heritage
- Harvest – Villas
- Harvest At Hopewell #2
- Harvest Est
- Harvest Estate
- Harvest Estates
- Harvest Estates 378
- Harvest Estates 379
- Harvest Estates 813
- Harvest Manors
- Harvest Manors 440
- Harvest Manors 441
- Harvest Manors 454D
- Harvest Manors 455
- Harvest Manors 478D
- Harvest Manors 479D
- Harvest Manors 484D
- Harvest Manors 516
- Harvest Manors 518D
- Harvest Manors 519
- Harvest Townhome
- Harvest Townhomes
- Harvest Townhomes 107
- Harvest Townhomes 110
- Harvest Townhomes 127
- Harvest Townhomes 128
- Harvest Townhomes 157
- Harvest Townhomes 158
- Harvest Townhomes 33
- Harvest Townhomes 39A
- Harvest-Townhomes-Ingrade-103
- Hidden Creek
- Highgrove Place #1
- Homefield
- Homefield #3 Village Z #1
- Homefield Gardens Bldg G
- Homefield Manors #2
- Homefield Ph 3 Village W #1
- Homefield Ph3 Village Y #1
- Huntington Downs
- Hyland Green #1
- Hyland Green #3
- Hyland Green #5
- Inverness Ph 1
- Inverness Ph 3
- Kensington Place #4
- Kersting Farms
- Keystone Crossing #3
- Laura Hills
- Magnolia Village
- Magnolia Village C
- Manderly Place
- Manors At Royallsprings #10
- Manors Of Fieldstone Farms
- Meadows At Royal Oaks Add
- Monticello Manor
- Monticello Village A
- Monticello Village C
- Morgan Oaks Fka Wheatfield
- Northwood Estate 02
- Oak View Estate #1
- Oakhurst #2
- Ofallon Arcade Plaza
- Ofallon Hills
- Ofallon Terrace
- Parkside Villas
- Patriots Landing #1
- Patton Sub
- Pearl Vista
- Pebble Brook #2&3
- Penny Lane Un 12-A
- Persimmon Hill Village
- Peruque Crossing
- Peruque Crossing #1
- Post Farms Enclave
- Post Farms Enclave 113
- Post Farms Enclave 114
- Post Farms Meadows
- Post Farms Meadows 234
- Post Farms Meadows 236
- Post Farms Meadows 254
- Post Farms Meadows 289
- Post Farms Meadows 290
- Post Meadows
- Quail Ridge
- Ridgetop Plaza
- Royallsprings #1
- Shady Creek Add #1
- Sigmund Farm Estate #2
- Sommerlin
- Sommerlin #2
- Spring Hill
- Spring Hill #2
- Springhurst Terrace #1
- Springhurst Terrace #11
- Springhurst Terrace #14
- Springhurst Terrace #16
- Springhurst Terrace #18
- Springhurst Terrace #4
- Springhurst Terrace #5
- Springhurst Terrace #6
- Springhurst Terrace #7
- Springhurst Terrace #9
- St Barnabas Park #3
- Stonecastle
- Stoney Mountain Village
- Strawberry Farms
- Streets of Caledonia
- Streets Of Caledonia #4
- Streets Of Caledonia #5
- Streets Of Caledonia #6
- Suncrest Village #1
- Sunset Ridge Estate Ph2
- Sunset Ridge Estate Ph4
- Sunset Ridge Estate Ph5
- The Enclave at Brookside
- The Grove at Riverdale
- The Townes at Streets of Caledonia
- The Villages at Post Farms Manors
- Thunder Hill Village
- Timbercreek Condos At Winghaven #7 Bldg 5
- Turtle Creek
- Turtle Creek #1
- Twin Chimneys Village D Watson Parish
- Twin Chimneys Ph3 Village F Little Oak
- Twin Chimneys Village C Rock Church Amd
- Twin Chimneys Village I Thorn Hill
- Tyndale Village At Thornbury #2
- Villa Crossing #2 Resub 7
- Villas At Highgrove #1
- Villas at Keaton Woods
- Villas At Woodlawn #1 Resub 6
- Vlgs At Bainbridge Cheshire Village #1
- Vlgs At Bainbridge Hamshire Village
- Vlgs At Bainbridge Yorkshire Village
- Vlgs At Dardenne McCluer Village #1
- Vlgs At Dardenne Oakland Village
- Vlgs At Dardenne Prairie Villas #3
- Vlgs At Hutchings Farm #1
- Vlgs At Hutchings Farm #2
- Vlgs At Montrachet
- Vlgs At Montrachet #1
- Vlgs At Shady Creek #3A
- Vlgs At Springhurst #1
- Vlgs At Springhurst #2
- Vlgs At Springhurst #3
- Vlgs At Springhurst #4
- Vlgs At Springhurst #5
- Vlgs At Walden Pond #1
- Vlgs At Walden Pond #2
- Wabash Woods
- Wabash Woods #2
- Wabash Woods #3
- Wabash Woods #4
- Wake Forest
- Weatherby Landing
- Weldon Spgs Gardens & Resub
- Weldon Spgs Gardens Add
- Westbury Village At Thornbury
- Westfield Woods #2
- Westridge #2
- Westridge #3
- Westridge Add
- Westwood Ac #2
- Westwood Ac #5
- Westwood Business Park
- William C Williams Addition to the Town
- Willow Run #2C
- Wind Hill Village
- Windsong #3
- Wood Stream 01
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Property Summary
- Located in the Summit Estates subdivision, 3 Rainier Court O’Fallon MO is a Single Family for sale in O’Fallon, MO, 63366. It is listed for $874,900 and features 5 beds, 4 baths, and has approximately 4,983 square feet of living space, and was originally constructed in 1999. The current price per square foot is $176. The average price per square foot for Single Family listings in O’Fallon is $186. The average listing price for Single Family in O’Fallon is $479,719.

Copyright 2026. All rights reserved.
3 Rainier Court
O’Fallon, MO



