To qualify for the National Register of Historic Places and the Indiana Register of Historic Sites and Structures, a property should be at least 50 years old and retain historic integrity or look similar to its original appearance. The property must also demonstrate significance at the local, state, or national level in at least one of the following:
- Events - Properties associated with events that were important to our history.
- Persons - Properties associated with the lives of persons significant in our history.
- Architecture/Design - Properties with architectural or engineering importance. They may be the work of a master or possess high artistic value. Groupings of properties may share a common heritage, such as a historic district.
- Information – Properties that have yielded, or may yield in the future, important information about our prehistory or history.
Email the Indiana DNR Division of Historic Preservation & Archaeology at dhpa@dnr.IN.gov for guidance regarding the determination of eligibility process.
More information about the National and State registers is available on the DHPA website.