Discover Illini Trails - New Construction Homes in North O'Fallon, IL Welcome to Illini Trails, one of North O'Fallon's most desirable new home communities, where affordability meets elegance. Featuring a thoughtfully designed collection of craftsman-style and traditional single-family homes, this neighborhood offers a variety of spacious ranch and two-story floor plans to fit your lifestyle. Tucked into a serene, gently rolling landscape, Illini Trails boasts scenic cul-de-sac lots, walkout homesites, and a charming community gathering space with a covered pavilion-perfect for connecting with neighbors and enjoying the outdoors. Families love Illini Trails for its top-rated location in the O'Fallon Public School District. Even better, the community is within walking distance to Fulton Junior High, making school mornings a breeze. Build your dream home from the ground up with custom design options, personalized to your style and needs. Whether you're a first-time buyer or looking to upgrade, Illini Trails combines value, beauty, and location-everything you want in a new home.