If the number of parking spaces required in Schedule 1165.04 is substantially larger than the number anticipated by the applicant and the applicant provides sufficient evidence that supports the reduced parking needs, a development plan may be approved with an allowance for the construction of a lesser number of parking spaces provided that:
(a) The total number of spaces initially constructed shall not be less than 70 percent of the spaces required by Schedule 1165.04.
(b) Suitable area(s) are reserved for the construction of the balance of the total number of spaces otherwise required by Schedule 1165.04. Such suitable areas shall be illustrated on the development plan in locations and with landscaping in full compliance with this Zoning Code.
(c) The Planning Commission, upon reevaluation of the project's parking needs, may at any time direct that some or all of the parking spaces identified in subsection (b) be constructed.
(d) When additional parking is determined necessary, it shall be provided according to the approved development plan.