Building of paper combine

Would you please tell us what is mean by building of paper?

I think, what he means is planning of a building on paper with all trades combine from foundations, structural, MEP/E&M or building services works, curtain wall / facade or building envelop, fit-out or architectural interior finishes to T&C. I think that is quite a long discussion, however, what you need to know is how each of these trades relates to each other, how they interface and what you need to look at when planning a building in terms of  access, logistics, water tightness, temporary passenger and material hoist, tower cranes, permanent lifts, etc.  Right now, I do not have the luxury of time to go further.

Regards,

Daniel