A PRD shall be used and constructed as approved by the Council. Any change in or expansion of a PRD, except as provided in this section, shall be applied for and processed in the same manner as an original application. Minor changes in plans or specifications may be allowed by the city planner at the time a building permit is issued. Minor changes are those which may affect the precise dimensions or siting of buildings, but which do not affect the basic character or arrangement of buildings or lots approved in the final development plan, nor the density of the development or the open space requirements. Such dimensional adjustments shall not vary more than twenty (20) ten (10) percent from the original. (Ord. 03-33 §43, 2003; Ord. 87-9 §1, 1987).