(a) For the purpose of applying and enforcing the provisions of this Building Code, “farm,” “farms,” and “farm lands” are hereby defined to be land in excess of three acres in area devoted to agricultural purposes.
(b) The provisions of this Building Code, insofar as the same fix fees for permits or inspections, shall not apply to any agricultural buildings or structures, except dwellings or buildings used as such, located or hereafter erected on a farm, farms or farm lands, but before beginning the construction, remodeling or alteration of such buildings or structures, the owner, contractor or builder thereof shall first make application to the Building Inspector for the permit therefor, but no drawings or plans and no fee for a permit or inspection shall be required, except for drawings or buildings used as such, located or hereafter erected on such lands.