Sign permits. All signs, except temporary freestanding signs, security signs, temporary real estate signs, temporary signs announcing the opening of a project, political and construction signs, signs announcing a public or quasi-public event, and historic and conservation signs, shall be deemed permanent signs. No permanent sign shall be erected, enlarged or altered without a permit from the Department. The act of changing only the copy of a sign shall not be considered an alteration. Applications for permits shall be submitted to the Department on forms obtainable from the Department. Each application shall be accompanied by drawings and written material showing the area, appearance and message of the sign, the method of illumination, the exact location and height of the proposed sign with regard to property lines, setbacks and structures, the method of support, attachment of such sign to the building if pertinent, and any required landscaping.