In R6 through R10 Districts, developments, with nine or more dwelling units per vertical circulation core, and enlargements, extensions or conversions that result in nine or more dwelling units per vertical circulation core, shall comply with the provisions of this Section.

In R5D Districts, developments with nine or more dwelling units per zoning lot, and enlargements, extensions or conversions that result in nine or more dwelling units per zoning lot, shall comply with the provisions of this Section. Such provisions shall also apply to any zoning lot with less than nine units where such zoning lot and any adjacent zoning lot with a total of nine or more dwelling units are developed or enlarged under common ownership or control.

The storage of refuse shall occur entirely within an enclosed area on the zoning lot and appropriate locations within the zoning lot shall be delineated for this purpose: at least one for residential uses, long-term care facilities and philanthropic or non-profit institutions with sleeping accommodations, as applicable, and at least one for other community facility and commercial uses. Residential storage and removal locations shall be provided at the rate of 2.9 cubic feet per dwelling unit.

A refuse disposal room of not less than 12 square feet with no dimension less than three feet shall be provided on each story that has entrances to dwelling units. Twelve square feet of floor space allocated to such refuse disposal room shall be excluded from the definition of floor area per story.