For developments or enlargements located on qualifying transit improvement sites, the City Planning Commission may grant a floor area bonus, by authorization, pursuant to Section 66-511 (Additional floor area for mass transit station improvements by authorization), or by special permit, pursuant to Section 66-512 (Additional floor area for mass transit station improvements by special permit). All such floor area bonuses shall comply with the conditions, findings and additional requirements set forth in Section 66-513 (Additional rules and limitations, conditions, findings and requirements).