You might be asking yourself if there is a fourth Revit. No. It would be nice if there was a "Revit Civil," but there isn't such a thing. So, we are left to our own devices when it comes to adding a site to our model. This is fine, because in many cases Revit is well equipped to take on the challenge. Unfortunately, also in many cases Revit is dependent on AutoCAD or MicroStation to provide a real-case scenario for a site that can be imported (similar to importing a plan or a detail). Fortunately, Revit provides tools to add a topographic surface to an imported CAD site.
Adding a site within Revit
Splitting the surface
Adding site components
Adding building pads to displace earth
Adding a property ...