WD:
Based on your info above, clarify a few things for all reading this thread please.

Service at the structure (landlord) is 277/480 volt, 3 phase?

Said service has MOCP, and has multiple tenant feeders with meters and mains for each feeder.?

You performed the load calcs on the existing service (landlord), and your calc load for the renovation will not compromise the existing service?

You did not mention the existing feeder to the space, or the OCP on the 75KVA primary and secondary feeders. You did note that there are thoughts of the existing load being an issue.



John