9-5C-3: LOT AREA AND BULK REQUIREMENTS:
   A.   Intensity And Bulk Requirements:
 
FAR
0.14
ISR
0.31
height
35 feet
 
   B.   Minimum Site Area:
      1.   Site Area: The minimum site area for O and R1 uses shall be five (5) acres. Sites shall be single or multiple lots controlled for development by a single interest. No property shall be subdivided unless the subdivision fully complies with the subdivision code (title 10 of this code) and all other applicable code provisions.
      2.   Lot Area: The average lot size shall be eighty thousand (80,000) square feet.
   C.   Floor Areas And Impervious Surface: The maximum floor area ratio (FAR) and impervious surface ratio (ISR) shall be governed by subsection A of this section.
      1.   Floor Area Ratio (FAR): The floor area ratio (FAR) is the total of all usable floor area of the buildings divided by the site area in accordance with the following formula:
         FAR = fa
            s
      Where:   FAR = floor area ratio
         fa = area of all floors of the building(s), as defined below
         s = site area, the actual area of the site, minus all flood ways, or land within the existing road right of ways.
      2.   Floor Area: For purposes of this chapter, "usable floor area" shall be defined as the sum of the gross horizontal areas of the several floors of a building or structure, measured from the interior faces of the interior walls, or from the interior line of walls separating two (2) buildings or structures, including the following:
         a.   Floor area of the basement, if it is used for other than storage.
         b.   Penthouses, other than that area used for mechanical equipment.
         c.   Attics having headroom of seven feet (7') or more.
         d.   Accessory storage areas located within working spaces, such as counters, racks or closets, or storage used in the conduct of the business or used and calculated in the gross leasable area for multi-tenant buildings.
         e.   Space devoted to the production of goods, or to business or professional offices.
The "usable floor area" shall not include:
         a.   Elevator shafts and stairwells on each floor.
         b.   Floor spaces and shafts used for mechanical, telephone and electrical equipment.
         c.   Attics having headroom of less than seven feet (7').
         d.   Areas used for storage, except as required by d above.
         e.   Space devoted to off-street parking or loading facilities.
         f.   Entrance lobbies and atrium-type areas.
         g.   Washrooms intended for general public use.
         h.   Mechanical penthouses.
         i.   Interior balconies and mezzanines.
         j.   Enclosed porches.
      3.   Impervious Surface Ratio (isr): The impervious surface ratio is the area covered by buildings, parking, drives, aisles, loading areas, patios or other paved areas, divided by the site area in accordance with the following formula:
         isr = Ab + Ap + Al + Ao
               S
      Where:   isr = impervious surface ratio.
      Ab = building area, the area covered by buildings from the maximum outside dimensions.
      Ap = parking areas, all areas used for loading or access to those areas.
      Al = loading areas, all areas used for loading or access to those areas.
      Ao = other areas, all other paved areas, including patios, walks, entryways, etc.
      S = site area, the actual area of the site, minus all areas of floodways, or the existing road right-of-ways.