Load scenes frome a seperate project

I am looking for a way, at runtime, to be able to load a scene from one project into another project. Basically I want to break the project into multple seperate .unity3d files so I update on pieces of the project as needed and save time uploaded.

Is it possible to be in a scene from a project, then to load a scene or a completely different .unity3d file into or on top of the scene that is currently running?

 

To my knowledge there is no way to do this but i could be wrong

 

This can be done on a Unity Web Project, using Javascript as an intermediary.