The new 2015 International Residential Code eliminates the requirement for one room to be at least 120 sq ft – http://sustainablebuildingcodes.blogspot.com/2014/10/tiny-houses-120-square-foot-requirement.html
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While all states have adopted the IRC, there is great diversity in the specific versions. It will take some time before the 2015 is in effect for most states, but it’s still a terrific step forward for the tiny house movement![/fusion_builder_column][/fusion_builder_row][/fusion_builder_container]