I am starting to fill out the paperwork for a new LEED ID+C project for which my LEED Project Boundary will be the full floor of an office building. My client owns the floor, as this is a condo office building. They will not occupy the full floor themselves initially, and will lease to a subtenant for a ~5 year lease approximately 1/4 of the floorplate, and then plan to take over that subtenant space for themselves after the subtenant's lease is up.

We would like to consider the LEED Project Boundary to be the full floor, so that when they take over the full floor, there won't be any concern or question about them needing to take down their plaque or otherwise cease considering their office space as LEED Certified.

When I complete occupancy calculations, I assume I should include estimates for FTE and visitors for that (as yet unidentified) subtenant? And in all other respects assume in all calculations that I'm looking at the full floor for all items? Or will there be any problems with the fact that the space is going to be divided for two tenants, despite the fact that ownership is of the full floor?

And on plf form 2--when it asks "Number of separate, complete interior spaces attempting certification as part of
this LEED Application", do I say 2, or 1?

Just trying to anticipate any problems before they happen, especially since some of these plf forms will affect so many calculations.