Why can't the architect do it for you in CAD? AutoCAD can do 3D stuff.
Or you may need a different 3D program. You aren't going to take an architects drawing and make it 3D in Illustrator or Photoslop....
Looking for a GRaphic Designer for Online Tee Shirts Store
firstname.lastname@example.org We're looking for someone to design a bunch of funny and interesting designs to put on tees and other products pertaining to holidays, types of parties, types of events.