We are defining a LEED boundary for our 2009-NC project. This is an arena project on a campus with major additions at the perimeter of the arena. The arena and the new addtions define construction for the certificaiton. It is a (3) story facility. There is an existing 2-story building (separate address and building name) connected that is not included as part of the certification. The LEED boundary would be simple as we can use the disturbed area of the site excluding the existing connected building. My question is that on the third level, part of the new addition to the Arena extends over the existing building that is not part of the certification. How do we document the LEED boundary. Can we provide a floor by floor LEED boundary or explanation that excludes the existing building and then a separate LEED boundary that includes the third floor construction over that existing building?