The required number of parking stalls for specialized senior housing is one per dwelling unit. This may be reduced to one stall per one and one-half dwelling units if justification for the reduction can be provided based on the number and types of services and activities to be provided on-site or other factors which affect parking demand. (Ord. 1815 § 1, 2000; Ord. 1685, 1997; Ord. 1629 § 1, 1996).