There is hereby created, pursuant to a settlement of litigation, an Affordable Housing Zone (AHOZ) permitting townhouses and apartment dwellings in the L-I Zone. The AHOZ affects a 12.3-acre portion of Block 3-B, Lots 19 and 21 as depicted on the zoning map (the "Site"). The purpose of this zone is to permit one hundred forty-eight (148) garden apartment units or one hundred twenty (120) townhouse units provided that a substantial percentage of these units are designated for and affordable for low and moderate income households. Substantial percentage is defined as: twenty (20%) percent of the total housing units constructed if the low and moderate income units are for sale; or fifteen (15%) percent if the low and moderate income units are rentals.