One identification sign may be attached to and shall be parallel with, but not painted on, the front wall of a principal building, which sign shall be limited to identifying the name of the building or principal occupant and/or the street number of the building. The maximum height of such sign shall not exceed three feet when measured vertically from its lowest point to its highest point, except as otherwise provided elsewhere herein. The maximum width of such sign shall not exceed 80% of the width of the front wall of the building or 20 feet, whichever is less. In no event shall the sign area exceed 15% of the area of the building wall on which it is attached. A street number sign may be separate from the principal identification sign, subject to the provisions of Subsection 5 of Subsection 20-24.2i.

In the alternative to, but not in addition to, the identification sign permitted by Subsection a above, and under the same message content restrictions as set forth in said subsection, one free-standing identification sign may be permitted in the rear half of the front yard setback required for the principal building providing that the maximum width of such sign shall not exceed 10% of the width of the building in front of which the sign shall be placed or 10 feet, whichever is less, and that the maximum height shall not exceed 1/2 the sign width permitted herein, and that the lower edge of such sign shall not be more than two feet above the ground surface.

No sign shall be placed in the required side or rear yards, nor on the side or rear of any building.

One directory sign may be placed in the lobby, subject to the provisions of Subsection 20-24.4.

One temporary sign advertising a prospective sale or rental on the premises may be permitted, subject to the provisions of Subsection 20-24.4.