Frustration from CAD site plan to sketchup workflow

Masterful point. I think this solved the issue with getting this on to a surface, but I feel as though this may come up if I drape with the same linework in the future. Your method of just showing the site on the model may work for for a first deliverable, but I will be developing final renders eventually.

Therefore, any solution as to why this won’t form a closed surface? Using an endpoint extension, all points are closed (shown in red circles)! I may need to create a new topic to address this. Is this an autocad based issue? Why is the interior line cutting, but not the outside line?