Parking for an Accessory Home may be waived in any of the following instances:
a. The Accessory Home is located within one-half mile of public transit, including transit stations and bus stations.
b. The Accessory Home is located within an architecturally and historically significant historic district.
c. The Accessory Home is part of the existing primary residence or an existing accessory structure.
d. When on-street parking permits are required but not offered to the occupants of the ADU.
e. When there is a car share vehicle located within one block of the ADU.