One of the biggest pains in the ass with this building has just been getting the actual as-built building drawings. To this day I don't have a proper set of as-builts, but boy do I have a million different revisions of stuff!
Planning / construction spanned over 4 years with a number of substantial revisions for a variety of reasons, so there's a lot of change between a lot of these versions. It blows my mind that a true as-built plan set is not required for the Cert of Occupancy.