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Over 30 years ago, the Dettmer family began its journey to become one of the best-known names in the St. Louis area home building industry. Our commitment to "going above and beyond" is the cornerstone of our business. If you are looking for a new home in the St. Louis area, there is - or will soon be - a Dettmer Homes community to fulfill your family's dreams. Currently we are building new communities located in the exciting, growing cities of Shiloh, O'Fallon, & Smithton in St. Clair County Illinois, ideally located near Scott Air Force Base. Our focus is on building energy efficient new homes that cost less to live in than other new and existing homes. Our homes have been proven to save over $100/month on utility bills!