Conditional Use Permits. A conditional use permit is required to construct a tower, antenna support structure, communication tower, guyed tower, lattice tower, monopole tower, repeater or self-support tower in Zoning Districts "A-1," "B-2," "B-3," "R-4," "I-1," "I-2" and "PUD" and on public lands, public and private parks, golf courses and as a secondary use on facilities otherwise exempt from the Zoning Code.