Our client would like to certify a building that had its structural components and facade built a few years ago. The building however was never finished, there are no HVAC instalation and there are no interior finishes. Now they want to finish the building which means that there will be some internal works and instalation of HVAC systems. The envelope of the building won't be changed. Is this building eligible for LEED CS certification? Can we define the building as major renovation even though it was never used and there won't be any changes made to the building envelope?