Re: How do you place walls of lot?

@jamesussery    Unfortunately, I am not aware of such a mod.  I think it would not be possible the way the game is set up currently.  The only thing I can think of is, if you have Get Together, you might be able to create clubs and use club doors for different rooms / sections of the build.  I realize that isn't what you're asking for but, based on the game design, I don't know of any other way to address it.