I wonder what licence or ownership the building owner has over the architectural drawings & blue prints. I imagine it wouldn’t be in an architects interest to

I wonder what licence or ownership the building owner has over the architectural drawings & blue prints. I imagine it wouldn’t be in an architects interest to have the plans sold multiple times. Tho on the flip side, it’s unlikely the plans would be used without changes, minor or major, which are likely best made by the original architectural firm. Which could become a source of additional business.