§ 160.08 “R-1S” SUBURBAN DENSITY SINGLE-FAMILY DISTRICT.
   (A)   Purpose. The purpose of this district is to provide lots of a size and type that is most-typical for the city’s suburban character, for single-family detached dwellings in residential neighborhood settings, in areas that are or soon will be served by the full-range of municipal infrastructure and services that the city provides.
   (B)   Permitted principal uses. Any use permitted in the “R-1I” District.
   (C)   Accessory uses. Accessory uses that are allowed in the “R-1I” District, if clearly subordinate and customarily incidental to the principal use, may be permitted.
   (D)   Conditional uses. The following conditional uses may be allowed by the Board of Adjustment subject to § 160.63, provided such use complies with the requirements of this and all other city codes and is in accordance with the Comprehensive Plan of the city:
      (1)   Public or private elementary, junior high or middle schools, high schools and similar educational facilities, but not including boarding, rooming or residential dwelling units;
      (2)   Accessory dwelling unit, subject to § 160.37;
      (3)   Churches and other religious organizations, but not offices as a principal use;
      (4)   Nursery schools and other child care;
      (5)   Small wind energy conversion system (SWECS), subject to § 160.48;
      (6)   Public utility facilities, including transmission and distribution equipment, substations, regulator stations and buildings associated therewith, but not including facilities for maintenance or general operations or communication towers. Evidence shall be provided to show such facilities are essential to service the public; that no reasonable alternative exists; and that all negative impacts, including esthetics, have been mitigated to the extent possible;
      (7)   Communication towers with a height of 100 feet or less, on a nonresidential property such as a school or church, subject to a minimum setback of 200 feet from the boundary of any property used or expected to be used for residential purposes, and from any “A-1” or “A-2” property designated for residential use by the Comprehensive Plan; and subject to § 160.47;
      (8)   Cemeteries;
      (9)   Public or nonprofit museums and historic sites or buildings, including offices and support facilities accessory thereto; and
      (10)   Bed and Breakfast, subject to § 160.57.
   (E)   Bulk requirements. The following minimum requirements shall be observed:
      (1)   Minimum lot area: 8,750 square feet;
      (2)   Minimum lot width: 70 feet, except corner lots;
      (3)   Minimum front yard setback: 30 feet;
      (4)   Minimum side yard setbacks: 8 feet each side, except street side yards;
      (5)   Minimum rear yard setback: 30 feet; and
      (6)   Maximum building height: 35 feet, provided that no building shall exceed a bulk plane having a 14-degree altitude calculated from a horizontal plane extending through a line located 18 feet above the average elevation of the north lot line, if an existing building with a passive solar design that includes thermal storage, or an existing solar photovoltaic array that is capable of producing a minimum of 3-kW DC in direct sun, lies to the north; said existing design or device shall be previously documented for this limitation to be applicable.