Alternate Plans and views

[bbabaa]

What's the best way to design a single house with alternate floor plans and alternate foundations, i.e mono slab, crawl, basement version and/or unfinished attic vs. finished attic space?

Layers? Any other way that's better or accepted practice?


Also, what about lot layout plans... for a sub-division.... i.e. showing the sub-division and house footprint on each lot.... CAD? Any other way or accepted practice?

Thanks...