510 Quarterhorse Trail 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.