In any home, existing or to-be-built, there are areas that are NOT living areas.  [Examples of these are garages, entries, porches, lanais, pools, elevators, etc.].  Each of these has a cost to construct but NONE of them are counted as "built areas" when calculating the "...

EFFICIENT GEOMETRY AND ITS DIRECT EFFECT ON THE COST OF CONSTRUCTION Most people either immediately or eventually ask the question “how much do you charge per square foot”?  Best guess, this their attempt to rationalize construction costs in a manner that sort of reflects the way real ...