Location of Off-street Parking Spaces
(a) Enclosure of spaces
All off-street parking spaces shall be located within facilities that, except for entrances and exits, are entirely below the level of any street or publicly accessible open area upon which such facility or portion thereof fronts, or shall be located, at every level above-grade, behind commercial, community facility or residential floor area so that no portion of such parking facility is visible from adjoining streets or publicly accessible open areas. Such floor area shall have a minimum depth of 30 feet.
(b) Rooftop landscaping
Any roof area of a parking garage not otherwise covered by a building and larger than 400 square feet shall be landscaped. Up to five percent of such roof area may be used for mechanical equipment, provided that such mechanical equipment is screened from view by a fence which is at least 75 percent opaque or by at least three feet of dense planting. Up to 25 percent of such roof area may be accessible solely from an adjacent dwelling unit and the remaining roof area shall be accessible for the recreational use of the occupants of the building in which it is located. Hard surfaced areas shall not cover more than 50 percent of such roof area. Schools shall be exempt from the provisions of this paragraph (b).