| TX | Cass County | Atlanta Permits Forms | website |
| MI | Cass County | Cass County (no county building department) | website |
| MI | Cass County | City of Dowagiac Building Department | website |
| TX | Cass County | Hughes Springs Building Inspections | website |
| MI | Cass County | Township of Calvin Building Department | website |
| MI | Cass County | Township of Howard Building Department | website |
| MI | Cass County | Township of Jefferson Building Department | website |
| MI | Cass County | Township of La Grange Building Department | website |
| MI | Cass County | Township of Marcellus Building Department | website |
| MI | Cass County | Township of Mason Building Department | website |
| MI | Cass County | Township of Milton Building Department | website |
| MI | Cass County | Township of Newburg Building Department | website |
| MI | Cass County | Township of Ontwa Building Department | website |
| MI | Cass County | Township of Penn Building Department | website |
| MI | Cass County | Township of Pokagon Building Department | website |
| MI | Cass County | Township of Porter Building Department | website |
| MI | Cass County | Township of Silver Creek Building Department | website |
| MI | Cass County | Township of Volinia Building Department | website |
| MI | Cass County | Township of Wayne Building Department | website |
| MI | Cass County | Village of Cassopolis Building Department | website |
| MI | Cass County | Village of Edwardsburg Building Department | website |
| MI | Cass County | Village of Marcellus Building Department | website |
| MI | Cass County | Village of Vandalia Building Department | website |