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Building footprint is the horizontal area of a building as measured at grade and bounded by the <br />exterior walls. Building footprint includes attached garages and enclosed porches but does not <br />include roof overhangs, awnings, unenclosed steps, decks, or patios. Detached accessory structures <br />are not included in the footprint of the principal building. <br />D. District Size <br />The minimum size, in acres, of a base or overlay zoning district, including streets, rights-of-way, and <br />open space areas, but excluding unbuildable lands. <br />E. Floor Area <br />The sum of the gross horizontal areas of the floors of a building measured from the exterior faces of <br />the exterior walls or from the centerline of walls separating two buildings, and excluding the <br />following: <br />a. Attic areas with a headroom of less than seven feet; <br />b. Unenclosed stairs or fire escapes; <br />c. Elevator structures; <br />d. Cooling towers; <br />e. Areas devoted to machinery and equipment for air conditioning, ventilation, heating, and other <br />similar building service needs; <br />f. Structured parking; and <br />g. Basement space not used for retailing activities, the production or processing of goods, or for <br />business or professional offices. <br /> <br />SECTION 4. Section 918.060.F of the Little Canada Zoning Ordinance is amended to read as follows: <br />F. Height <br />1. Building Height <br />The vertical distance from the natural grade measured either at the curb level or at a point 10 <br />feet away from the front center of the structure or building, whichever is closer, to the top of <br />the highest point of the roof on a flat or shed roof, the deck line on a mansard roof, and to the <br />mean height between eaves and ridge for gable, hip and gambrel roofs. <br />2. Building Story <br />a. The space between the surface of any floor and the surface of the next floor above it; or if <br />there is no floor above it, the space between the floor surface and the top of the ceiling <br />joists or roof rafters above it. Typically, story height in a residenti al structure is nine feet <br />per story, and story height in a non -residential structure is twelve feet per story. <br /> <br />b. If the finished floor level directly above a basement or cellar or unused under -floor space <br />is more than six (6) feet above the grade as defined herein for more than fifty (50) percent <br />of the total perimeter or is more than twelve (12) feet above grade as defined herein at any <br />point, such basement, cellar, or unused under -floor space shall be considered as a story. <br />3. Fence and Wall Height <br />Fence and wall heights are to be measured from the adjoining average grade. In the case of <br />grade separation such as the division of properties by a retaining wall, the height shall be <br />determined on the basis of measurement from the average point between th e highest and <br />lowest grade. <br />4. Garage Side Wall Height. The height of a garage side wall is measured from the top of the <br />concrete slab to the top of the top plate. <br />5. Grade <br />Grade means the level of the finished ground surface immediately adjacent to the exterior <br />walls of a building.