A delayed utility hookup changes the entire job. The boilers still need commissioning, the temporary heat still has to run, and the owner still expects the schedule to hold. When that happens, natural gas sizing stops being a paperwork exercise and becomes a project...
Projects usually don't stall because the building isn't ready. They stall because one utility connection isn't. The slab is poured. Equipment is scheduled. Inspectors are lined up. Then the gas meter set date moves, and suddenly the occupancy target,...