In order to provide additional flexibility in the development of this district, variable lot sizes shall be permitted, provided that said uses are designed as part of an office park complex having a minimum tract size of 50 acres and adhering to the following standards, with each lot in the development being submitted as part of a comprehensive plan for the entire tract and designed for coordination with development on adjoining tracts:
(1)
The average lot size shall not be less than two acres.
(2)
The minimum lot size shall be 40,000 square feet.
(3)
No lots of less than two acres may be subdivided until a sufficient number of lots in excess of two acres has been subdivided in order to maintain the minimum average lot size of two acres, except that in any event no more than half the total number of resulting lots may be less than two acres.
(4)
The minimum lot width for parcels less than two acres shall be 300 feet.
(5)
All other yards, setback, coverage, parking, height and other provisions of this district shall be as set forth in other provisions of this chapter.