Gorgeous 4000+sq ft home sits on flat 3-acre lot, w/mature trees offers privacy & tranquility in desirable Summit Estate subdivision. Main floor provides ample space for entertaining boasts hardwoods, vaulted shiplap ceiling, stone fireplace, bookshelves & floor to ceiling windows. Updated kitchen’s equipped w/ss appliances, custom cabinets, planning desk, quartz counters & huge island perfect for casual dining. Main floor includes Master Suite w/WIC & updated Bath w/gorgeous tile shower & dual vanity. 2 addt’l Beds, Laundry & full Bath complete main floor. Private stairs to HUGE 4th Bed w/expansive WIC. Lower level offers a Rec space, full Bath, Sleeping area & a few surprises. The 5-car garage (fits 6 tandem) w/private basement access. New roof 2020, geothermal HVAC 2017, radon mitigation 2020. Enjoy your front porch, playing yard games or strolling through the woods on this stunning O’Fallon property.
Closed
Price Unknown
1544 Mammoth Dr, O'Fallon, MO 63366
4beds
4,800sqft
Single Family Residence
Built in 2000
3 Acres Lot
$922,700 Zestimate®
$--/sqft
$4,079 Estimated rent
What's special
Zillow last checked: 7 hours ago
Listing updated: April 28, 2025 at 05:27pm
Listing Provided by:
Deborah Willard 636-497-6392,
Berkshire Hathaway HomeServices Select Properties,
Brandon M Willard 636-697-3775,
Berkshire Hathaway HomeServices Select Properties
Bought with:
Linda&Kelly K Boehmer, 1999031994
Berkshire Hathaway HomeServices Select Properties
Source: MARIS,MLS#: 23025717
Originating MLS: St. Charles County Association of REALTORS

Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 4
- Bathrooms: 4
- Full bathrooms: 3
- 1/2 bathrooms: 1
- Main level bathrooms: 3
- Main level bedrooms: 3
Heating
- Natural Gas, Forced Air
Cooling
- Ceiling Fan(s), Central Air, Electric
Appliances
- Included: Gas Water Heater
Features
- Separate Dining, Entrance Foyer, Bookcases, High Ceilings, Open Floorplan, Special Millwork, Vaulted Ceiling(s), Walk-In Closet(s), Double Vanity, Breakfast Room, Kitchen Island, Custom Cabinetry, Eat-in Kitchen, Granite Counters, Pantry, Solid Surface Countertop(s)
- Basement: Partially Finished
- Has fireplace: No
Interior area
- Total structure area: 4,800
- Total interior livable area: 4,800 sqft
- Finished area above ground: 3,366
- Finished area below ground: 1,434
Property
Features
- Has private pool: Yes
- Pool features: Private, Indoor
Lot
- Size: 3 Acres
Details
- Parcel number: 200437743000058.0000000
Construction
Type & style
- Home type: SingleFamily
- Property subtype: Single Family Residence
Condition
- Year built: 2000
Utilities & green energy
- Sewer: Septic Tank
- Water: Well
Community & neighborhood
Location
- Region: Ofallon
- Subdivision: Summit Estate
Services availability
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Estimated market value
$922,700
Get a cash offer in 3 minutes
Find out how much your home could sell for in as little as 3 minutes with a no-obligation cash offer.
Estimated market value
$922,700