I have a critical issue about the LEED v4 boundary, i have attached several images for your reference.

To discuss with the developer, we are going to certify the 1 2 3 4 as a whole building, 1 is reception center, 2 is audiovisual studio, 3 is showroom, 4 is office, they are connected by Open corridor.

The red line indicated is the proposed LEED boundary, we are going to get LEED platinum certification for the 1,2,3,4 builidng togethter as one certification, my question is that can we certify 1,2,3,4 as a whole building and get one certification? if not, how to get one certificaiton? could you give some comments?
Looking forwards to your reply.

Thank you very much!
Best regards.