My colleague and I have been trying with this for a while now and we’re not even close.
Any ideas ?
Hello, without knowing what you’ve done, I would first suggest the Room.Boundaries node from Clockwork to do this
Areas. Not rooms.
And I don’t have much to share. Start with selecting the lines - and then you hit a wall.
Here: http://screencast.com/t/FM1t2IH9oJ1
This node handles areas too…
Hello @byousif!
You only need three nodes for this:

That did it!! Thank you so much 
I can’t see the image in the link (blocked by security as it’s flash I think). Can you elaborate? I am trying to convert detail lines into area boundary lines . . .
That node does not work. It generates model lines that are NOT the same as Area Boundary lines.
Hi @byousif
Could you share screenshot of your complete graph with all the previews on? It will help others to see why it doesn’t work.
@byousif Connect your inputs like shown below. It should work for you:




