Drupal Real Estate is a case study of Drupal and it's powerful contributed module base. This is a fully featured real estate app created by MatthewM.org and Bittennails.com. All of the features/function you see (and don't see in the backend) are 99% completed using Drupal contributed modules. If you have questions about our Drupal Real Estate project use the contact form to reach us. Thanks for looking around.