Developments or enlargements that result in a total of at least 100,000 square feet of floor area on individual zoning lots of at least 200,000 square feet or groups of zoning lots subject to the provisions of Section 124-60 (SPECIAL PERMIT TO MODIFY USE OR BULK REGULATIONS) that are, in aggregate, at least 200,000 square feet, shall front upon streets that comply with the requirements of this Section, inclusive, unless modified by special permit pursuant to Section 124-60.