Section 28-105.4.5. Sign permits

A sign permit shall not be required where
  the sign is:
    1. Painted directly on the exterior wall surface of a building  or  on
  the surface of a fence;
    2. A wall sign of not more than six square feet (0.56 m{2}) in area;
    3.  Erected by employees of a city agency, including traffic and other
  similar signs;
    4. A ground sign advertising the sale or rental  of  the  premises  on
  which  it  is  erected, provided the sign does not exceed 12 square feet
  (1.1 m{2}) in area;
    5. Temporary and erected during construction work and related thereto;
  or
    6. Temporary for special decorative display use for  holidays,  public
  demonstrations,  or  the  promotion  of  civic,  welfare  or  charitable
  purposes, except that signs that utilize streets or cross streets  shall
  be subject to the requirements of the department of transportation.
    7. Temporary signs announcing the sale or rental of real property.