Except as noted in § B70-7.01, parking facilities shall be on the same lot with the use used to compute the requirements for the number of off-street parking spaces, except that in Professional, Business and Industrial zones, the required off-street parking facilities may be provided on a different lot, provided that (a) the nearest boundary of the paved portion of the parking facility is within 500 feet of the building lot on which the building use is being served, (b) that the right to use such off-site parking, whether the right is exclusive or shared, is secured to the primary site by long-term agreement, and (c) off-site parking is located on the same side of the street as the principal use and is connected by sidewalks or equivalent pedestrian access.