One sign, not exceeding fifty square feet per face, on the site of a building under construction and only while under a valid building permit, which may bear the names of the future occupants, architect, engineers or contractors engaged in the construction, and located not closer to any lot line than one-half the required building setback distance from that lotline, is permitted in addition to the signs permitted in Sections 1284.03 through 1284.06.
(Ord.79-0-14. Passed 7-24-79.)