No person shall occupy any mobile home or house trailer on any premises in the City, except educational trailers, or temporary construction or office trailers located on construction sites. Temporary construction or office trailers may be occupied by those employed at the site, but not as dwellings, and not for periods in excess of six months. The Board of Zoning Appeals may extend the period of occupation of a temporary construction or office trailer for an additional six months, on application and for good cause shown. The temporary parking of a house trailer for a period not to exceed six months on any premises, in side or rear yards, shall be permitted. The temporary parking and the permanent parking or storage of an unoccupied trailer in an accessory private garage, or other accessory building, side or rear yard, shall be permitted, provided that no living quarters shall be maintained and no business conducted in such trailer while it is so parked or stored, and provided that no front yard shall be occupied by such trailer or mobile home. In addition, in any district, the wheels or any similar transporting devices of any trailer or similar facility shall not be removed except for repairs, nor shall any trailer or similar facility be otherwise permanently fixed to the ground in a manner that would prevent removal of the trailer, or similar facility.