Employee housing may or may not be located on the principal heavy industrial parcel. Such housing may only be occupied by employees of a requesting business. The use is temporary, with a specified review period of no more than five years from date of approval, as conditioned by the Planning and Zoning Commission and approved by the City Commission. Consideration for further extension would be finally determined by the City Commission with recommendation for the continuation or discontinuation of the use by the Planning and Zoning Commission.