self-construction or self-generation of buildings

try digimation grow plugin

Two scripts/plugins come to mind right away - "Building Generator" and "3D Architecture Animation Creator".

Building Generator will animate buildings that you generate with it - but won't animate an existing building. http://www.scriptspot.com/3ds-max/building-generator

3D Architecture Animation Creator - I haven't used it personally and it's a $100 but it looks like it'd do what you're looking for. http://www.3dbrother.com/

...

Of course this is the kind of thing that has tons of different solutions - from animated visibility / materials, to hand keyed pieces to using particle flow... The possibilities are really endless.

thank you very much for your prompt response.

Had also considered the possibility of visivilidad the material.
Proves the visivilidad and if not vere 3D Architecture Animation Creator Professional

thank you very much again and best regards