The building creator allows you to create buildings from spline based floor plans. Draw your spline - make sure its closed and run through the script. If you have any suggestions or errors please send them to me. This is still in its very early stages but I hope to keep adding to the script and enhancing the capabilities on a regular basis.
Watch a Video Tutorial
Just run the installer and the script will be placed in your scripts folder. I suggest looking at the video tutorial on the site.