Except for mobile homes or travel trailers within regular commercial public home or travel trailer sales lots or in other than R-1 Residential District, each freestanding mobile home or travel trailer offered for sale must be clearly marked as such, shall not be occupied for either living or sleeping purposes and must be removed from the premises if not sold within one hundred twenty (120) days. Freestanding mobile homes or travel trailers located within regular commercial mobile home or travel trailer sales lots need be neither individually marked for sale nor removed within one hundred twenty (120) days if not sold. A property owner shall not store, nor permit to be stored, more than one mobile home or travel trailer on a residential lot. The property owner shall not actively offer for sale more than one mobile home in any twelve (12) month period. Such mobile home or travel trailer shall not be stored in any required front yard or side yard or public utility easement, nor shall such mobile home or travel trailer project beyond the front of any building. (Prior Code, Sec. 4-36)