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510 Quarterhorse Trail, O'Fallon, MO, 63376

Welcome to this beautifully maintained two-story home in Calumet Ranch, one of O'Fallon's most desirable neighborhoods with over 3,900 square feet of total living space! Recent updates provide peace of mind, including a new roof and gutters, brand-new carpeting throughout, fresh interior paint, new vanities in the upper-level bathrooms, a new sump pump with battery backup, new garage doors and newer dual HVAC systems and water heater. From the moment you enter, you'll be impressed by the dramatic 18-foot cathedral ceiling foyer filled with natural light which is accented by hardwood flooring. The spacious main level is designed for both everyday living and entertaining, featuring 9-foot ceilings, a formal living room, separate dining room, comfortable great room highlighted by a gas-log fireplace and bay window overlooking the flat, vinyl-fenced backyard and patio, plus a convenient main-floor laundry room and half bath. The kitchen offers 42-inch cherry cabinetry, abundant counter space, a gas cooktop, built-in oven and microwave, a large walk-in pantry and a convenient breakfast room. Upstairs, you'll find four generously sized bedrooms and three full bathrooms providing plenty of privacy and space for family and guests. The primary suite with vaulted ceiling features a large walk-in closet with custom organization, double vanity, separate Jacuzzi tub and shower and a private water closet. The additional bedrooms also include custom closet systems. The finished lower level provides even more living space and includes a convenient half bath making it ideal for a recreation room, home office, fitness area, media room or play area. Additional features include an oversized three-car garage, central vacuum system, meticulous landscaping with an irrigation system and plenty of space for outdoor enjoyment. With its thoughtful updates, functional floor plan and desirable location, this home is ready for its next owners to enjoy.

Subdivision: Calumet Ranch #2

List Price

$ 549,900

Status

Pending

Days on market

0

MLS#

26038563

Bedrooms

4

Full baths

5

Sq. Ft. Above

3,940

Sq. Ft. Below

1,138

Subdivision

Calumet Ranch #2

Municipality

O'Fallon

School District

Ft. Zumwalt R-II

County

St Charles

Property Type

Residential

Style

Traditional

Type

Residential

Additional Information

Property Tax (2025)

$4,863

Recent Nearby Sales in 63376

Last 6 closed homes in this zip.

Address Bd/Ba SqFt List Sold Closed
308 W Sunny Hill Boulevard, St Charles, MO 63376 4/3 1,140 $350,000 $350,000
100% of ask
Sep 10, 2026
423 Ancestry Drive, O'Fallon, MO 63376 4/3 1,684 $385,000 $380,000
98.7% of ask
Sep 10, 2026
15 Barrington Drive, St Peters, MO 63376 3/3 1,572 $354,900 $355,000
100% of ask
Sep 10, 2026
21 Derby Lane, St Peters, MO 63376 3/1 1,073 $144,900 $117,500
81.1% of ask
Sep 10, 2026
342 Newport Drive, St Peters, MO 63376 2/2 1,536 $350,000 $352,500
100.7% of ask
Sep 9, 2026
8 Lewis Court, St Peters, MO 63376 3/3 1,688 $395,000 $426,000
107.8% of ask
Sep 9, 2026

Price & Listing History

Listed for sale
Jun 24, 2026 at $565,000
Price reduced by $15,100 (2.7%)
From $565,000 to $549,900
Current status: Pending
As of Aug 21, 2026 · $549,900

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Room Dimensions

Room Type

Living Room

Room Dimensions

13x13

Dining Room

18x14

Great Room

22x17

Kitchen

12x12

Breakfast Room

14x11

Primary Bedroom

17x14

Bedroom 2

14x11

Bedroom 3

15x12

Bedroom 4

14x10