11-8-2: ACCESSORY USES:
   A.   Permitted: An "accessory use", as defined in section 11-1-3 of this title and as regulated herein, is permitted in any district where the principal use to which it is accessory is permitted.
   B.   Height Limit Exceptions: If allowed by conditional use permit, the building height limits provided in the zone regulations may be exceeded by towers, flagpoles, gables, spire, cupolas, water tanks and like structures, including mechanical appurtenances, except that in no case shall the excepted structure cover at any point above the height limit an area greater than fifteen percent (15%) of the area of the lot.
   C.   Restrictions On Tower And Gable Structures: No tower, gable, spire or similar structure shall be used for sleeping or eating quarters, nor for any commercial purposes other than such as is incidental to the main use.
   D.   Permitted Uses In Any Yards: The following shall be permitted in any yard:
      1.   Cornices, canopies, eaves or other architectural projections that do not increase the volume of space enclosed by the building and do not project into any required yard more than two feet (2'); provided, that an unroofed stair and landing, together with a railing, may project not more than three feet (3') into the minimum setback requirement.
      2.   Chimney, not more than eight feet (8') in width projecting no more than twenty four inches (24") into the minimum setbacks.
      3.   Access driveways providing reasonable access to required private or public areas, including garages. Driveways that extend through the setback in other than a perpendicular manner may be approved if due to physical limitations of the site or for aesthetic or safety purposes. The planning director may approve such unusual driveways upon a determination that the following are true:
         a.   The driveway is clearly for access to a garage or parking area; and
         b.   The proposed driveway does not have a negative impact on adjacent properties; and
         c.   The driveway is required because of physical limitations of the site; or
         d.   The driveway is required to enhance the aesthetics of the site such as preserving existing trees; or
         e.   The driveway is required for safety reasons, such as avoiding backing into a busy street or a street with limited motorist visibility.
Driveways that are not approved by the zoning administrator/building director require a variance from the planning and zoning commission.
      4.   Flagpoles shall conform to the height limit allowed within the zone unless approved in accordance with the provisions of subsection B of this section.
      5.   Accessory structures under one hundred twenty (120) square feet in area and under seven feet (7') in height are permitted in any yard area, except in front of the main building.
   E.   Permitted Uses In Rear Yards: The following shall be permitted in rear yards:
      1.   Unroofed balcony in rear yard; provided, that no such balcony shall project more than four feet (4') into such yard.
      2.   "Backyard composting", as defined in section 11-1-3 of this title. (2003 Code § 11-09-02)