It is unlawful for any person to erect a house or building within the limits of the city without numbering such house or building with the number designated by the public works director, or for the occupant of any house or building, or for the owner or agent of any unoccupied habitable house or building, to fail for a longer period than ten (10) days after notice from the public works director so to do, to number such a house or building with the number designated by the public works director. (Prior code § 41-6-6)