[Greenbuilding] minimum house size if one follows building codes

[Alan Abrams]

    interesting question.  writing from home, with IRC not at hand, i'd say you
   could build your code compliant microhome substantially smaller.   The only
   explicit minimum i recall (except for landings and other language concerning
   stairs-which i assume don't come into play here) is 70 sf for a bedroom
   (with no dimension <7').  A full bath, with 30"x30" shower could be as small
   as  20sf.   I  don't recall any language that says a bedroom has to be
   separated from another living area--but even if it were so, an alcove with a
   King minikitchen module might be as small as the bedroom.  add about 30sf
   for walls and you're at +/-200sf.

   take  a more agressive interpretation and put the minikitchen in a bay
   attached to the bedroom, and you could easily come up with a hyper-efficient
   120 sf.

   but would you really build it?

   Alan Abrams AIBD
   Abrams Design Build LLC
   202-726-5894 o
   202-291-0626 f
   www.abramsdesignbuild.com
   On Sun Jun 10 1:54 , "Reuben Deumling" <9watts at gmail.com> sent:
   
     Is it true that the sum of all requirements, clearances, etc. in the
     prevailing US building codes preclude building, say, a 250 square foot
     house? Assuming the codes work this way, has anyone tried to total up
     what the minimum permissible size might be?
     Thanks.
     Reuben Deumling
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