November 13, 2020 00:48 Updated Follow Contact the Division of Historic Preservation and Archaeology (317-232-1646), Indiana Department of Natural Resources. Related articles Is my property eligible for the National Register of Historic Places? I want to do something to my historic home or structure. Do I need approval from the DHPA? How long will it take for me to receive my title? What criteria must I meet to qualify for your (IHCDA) programs? How are property taxes determined and calculated?