Build over Drupal, the most flexible and powerfull CMS ever. RealEstate is based on an Installation Profile. Once you install it, you'll have an exact site like this.
Home Variant 2

Property Map Explorer and Map Home Variant
RealEstate easilly showcases all your properties on a Google Map once you locate them, allowing your visitors to explore the entire area geographically.

Property's Agent Contact Form and Info
Each Property supports the linkage with an Agent, allowing your business to expand to any one interest on posting a House on your site, even owners.