O Fallon, MO - homes with upcoming open houses

Copyright 2026 Mid-America Regional Information Systems. All rights reserved. Listings courtesy of Mid-America Regional Information Systems as distributed by MLS GRID <Last Updated March 23, 2026. Mid-America Regional Information Systems provides content displayed here (“provided content”) on an “as is” basis and makes no representations or warranties regarding the provided content, including, but not limited to those of non-infringement, timeliness, accuracy, or completeness. Individuals and companies using information presented are responsible for verification and validation of information they utilize and present to their customers and clients. Mid-America Regional Information Systems will not be liable for any damage or loss resulting from use of the provided content or the products available through Portals, IDX, VOW, and/or Syndication. Recipients of this information shall not resell, redistribute, reproduce, modify, or otherwise copy any portion thereof without the expressed written consent of Mid-America Regional Information Systems.