@Nawrot: you obviously have not understood the 4 level concept of this design. please look at the deviant art link if you don’ get it from those pics here.
The NCIS office…as far as i remember is a pain floor with one level above it for the mission/tactical room. Then their basement is …a traditional basement.
So that has nothing to do with the design of mine.
Regarding the heat in the summer: yes there is a climate control system in it, you can see its pipes above the creative area in the backoffice levels ceiling.