Visibility/Filters

Question By A Revit User
There is a grey plane that is almost like a floor on the outside fof my house. How do I get it to lower so that I don't see the grey but I do see my grass

Answer By Tom Dinmn
They grey plane is most likely a "ground plane" Ground planes are useful if you don't have a site plan and just want a material to appear in your rendering at a certain level.
To get rid of the ground plane yu have to check in two places:
Settings>Sun and Shadow Settings [un-check 'ground plane']
And:Rendering TAB>Settings>Environment [un-check 'ground plane']
Why there are two places for ground plane I haven't figured out yet.
Hopefully this will clear up your problem.