TRUE - Yes, Sorry folks, but heating and cooling of bathrooms IS NOT REQUIRED by the Florida Building Code.
Why, you may ask? Because bathrooms are not considered living space. Along that same line of thinking, closets and hallways are not required to be heated or cooled either.
Should those rooms be "conditioned"? That is a matter of personal preference, but I have seen some closets that are larger than my living room, and I am sure the owner spends a considerable amount of time finding the right outfit - so air conditioning would be a perceived necessity. BUT technically, air conditioning and heating are not required in bathrooms, closets and hallways.