There are 236 townhouses in Co-op City, each of which has 3 floors and two apartments, a one-bedroom and a three-bedroom. The one-bedroom, which is on the ground level, has a small yard. The three-bedroom, which is a duplex on the second and third floors, has a terrace on the second floor.
This link contains floor plans for both apartments.
Riverbay provides reasonable accommodations to persons with disabilities as required by the Fair Housing Act.