150 Marigold Drive Beautifully designed and thoughtfully upgraded, this impressive two-story home in O'Fallon offers approximately 3, 716 sq. ft. of living space across the first and second levels. The main level showcases 9-foot extended ceilings, a formal dining room, and a home office or formal living room with French door entry. The family room is highlighted by a wall of windows overlooking the wooded backyard and features built-in bookcases flanking the gas fireplace. The expansive kitchen is the heart of the home, featuring custom cabinetry, granite countertops, real hardwood floors, and a large center island with breakfast bar seating. The breakfast area provides a space for casual dining and offers access to a covered, screened-in deck. This seamlessly opens to a maintenance-free deck featuring steps down to the backyard. A butler’s pantry and a walk-in pantry add both style and functionality to the kitchen, offering additional storage and serving space—perfect for hosting gatherings. A half bath, a drop zone with open lockers, an oversized laundry room, and a 3-car garage complete the main level. Upstairs, the massive primary suite serves as a luxurious retreat, highlighted by vaulted ceilings, an oversized 11x14 walk-in closet, and a spacious private bath complete with a double vanity, corner soaking tub, and glass-surround shower. 3 generously sized guest bedrooms are also located on this level, including 2 that share a convenient Jack-and-Jill bathroom (each with own vanity and toilet). The 3rd bedroom is a junior suite with its own private bath, and all three secondary bedrooms feature walk-in closets. The second level also boasts a massive loft / family room area and a dedicated HVAC system. The lower level expands the home’s future square footage potential with a full, unfinished lookout basement all with 9ft extended ceilings. It is just waiting for your personal touch to add a 5th bedroom, full bath, and a large family room, while still leaving plenty of unfinished storage space. Additional highlights include dual HVAC for enhanced comfort and efficiency, an irrigation system, and a new roof installed in 2025. Outside, the professionally landscaped yard and paver patio—featuring a firepit with built-in seating—are perfect for outdoor entertaining or relaxing evenings. The $775/year HOA amenities include walking trails, a playground, and a community pool.