Archives are the built-in lists of items that WordPress generates for any post type on the site. You should create your own custom archives for properties and agents. These archives appear in the breadcrumbs that most themes generate and will help your site rank well in search engines.
Designing archives is very similar to designing Views, except that for Archives, WordPress automatically decides which content to list. You can easily expand your archive pages with custom search, maps, custom pagination, and more.