Portable Structures. No temporary structure, garage, building shed, carport, gazebo, shipping container, tent, and/or air-supported structure shall be erected or maintained in the areas within the front or side yard setback requirements. One shed, with no foundation, that can be removed or detached within a reasonable amount of time to allow access by the Fire Department, with a maximum size to meet the minimum exempt level from the Building Department, shall be allowed within the back yard setback requirements. Except in the NFR zone, utility sheds and garages will have a five-foot setback from the property line on the inside side yard and the rear yard.