We are investigating if group certification approach may be suitable for a project that include within the same LEED boundary the following buildings:
- n1 Existing Building (Energy House) that was and will remain only for a mechanical and electrical technical spaces (no FTE and not occupabile spaces).
- n1 New Office Building
- n1 New Conference Building

During the construction activities of the new buildings it is also planned the dismounting and supply and installation of newest mechanical systems and electrical system located inside the existing building.

May the Existing Building be excluded from the LEED group certification, whilst remaining within the LEED boudary?

thanks in advance