NY A02128

Amends the definition of "floor area" in the Multiple Dwelling Law to impose multipliers based on floor-to-structural-ceiling height: areas with height greater than 12 feet but not exceeding 24 feet are counted twice; 24-36 feet counted three times; 36-48 feet counted four times; and exceeding 48 feet counted five times.

Provides exception for ground floor areas where height up to 20 feet is counted only once regardless of total ceiling height.

Requires mechanical equipment space to be counted as floor area only to the extent it exceeds 5 percent of the gross horizontal areas of all floors.

Includes open areas located under dwellings (when viewed from above) in floor area calculations, applying the same height-based multipliers as interior spaces.

Clarifies that open terraces, exterior balconies, porches, and uncovered steps beyond the exterior walls of the dwelling are excluded from floor area.