Definitions. For purposes of this section only, the following definitions shall apply:
FLOOR AREA RATIO (FAR)
The gross floor area of buildings or structures on a lot divided by the gross total lot area.
GROSS ACREAGE
The total land area of tax lots(s), including water bodies.
GROSS FLOOR AREA
The sum of the gross horizontal areas of all enclosed floors of a building, including cellars, basements, mezzanines, penthouses, corridors, and lobbies from the exterior face of the exterior walls or from the center line of a common wall separating two buildings, but excluding any space with floor-to-ceiling height of less than six feet six inches. This does not include balconies, terraces or roofs. In determining the gross floor area, any floor space that is constructed or intended to be used solely for parking motor vehicles, for loading or unloading of motor vehicles, or for refuse storage chambers, refuse storage and material recovery chambers, material recovery chambers, refuse storage and material recovery rooms, refuse chutes, other types of facilities provided for the separation of refuse, or for access facilities for telecommunications and broadcasting services, or occupied solely by machinery or equipment for any lift, air-conditioning or heating system or any similar service, shall be excluded from the gross floor area of a building.
IMPERVIOUS SURFACE
A surface that has a coefficient of runoff of 0.75 or greater. No more than 50% of graveled areas shall be permitted to be applied as a pervious surface.
LOT COVERAGE
The portion of a lot that is covered by impervious surface. A green roof on any building or garage structure that provides adequate vegetation and passive recreation use for the occupants may be counted as pervious coverage at 75% (i.e., 100 square feet of a "green" roof would count as 75 square feet of pervious ground surface).
NET ACREAGE
The total land area of a tax lot, excluding water bodies.
PERVIOUS COVERAGE
The percentage of a lot covered by pervious surface(s).
PERVIOUS SURFACE
Any surface that does not meet the definition of an impervious surface.