(A) Purpose. The purpose of this district is to provide smaller lots for single-family detached dwelling units, and lots for single-family attached dwelling units and low-density multi-family dwelling unit developments, in locations that are on or near arterial streets and retail commercial areas, in neighborhood settings that are or will be served by a full-range of public services.
(B) Permitted principal uses. Only those uses listed below shall be permitted, in accordance with all of the provisions of this district:
(1) Any use permitted in the “R-1S” District;
(2) Single-family attached dwelling units;
(3) Multi-family dwelling units; and
(4) Any use permitted in the “R-1S” District, multi-family residential, and accessory uses incidental to and on the same zoning lot as the principal use.
(C) Accessory uses. Accessory uses that are allowed in the “R-1S” 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) Nursery Schools and other child care;
(3) Churches and other religious organizations;
(4) Extended care, intermediate care or rehabilitation or residential care nursing facilities, but not including care of or homes for the emotionally disturbed, mentally ill, retarded, persons with social or personal problems, delinquents or offenders, or persons with past or present drug or alcohol dependence;
(5) Small wind energy conversion system (SWECS), subject to § 160.48;
(6) Cemeteries;
(7) Public or nonprofit museums and historic sites or buildings, including offices and support facilities accessory thereto;
(8) 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;
(9) 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; and
(10) Bed and breakfast, subject to § 160.57.
(E) Bulk requirements. The following minimum requirements shall be observed:
(1) Minimum lot area:
(a) Single-family detached: 7,500 square feet;
(b) Single-family attached: 6,000 square feet for each dwelling unit; and
(c) Multi-family: 5,400 square feet for each dwelling unit.
(2) Minimum lot width:
(a) Single-family detached: 60 feet, except corner lots;
(b) Single-family attached: 45 feet for each dwelling unit, except corner lots; and
(c) Multi-family: 175 feet, except corner lots.
(3) Minimum front yard setback:
(a) Single-family detached: 30 feet;
(b) Single-family attached: 30 feet; and
(c) Multi-family: 50 feet.
(4) Minimum side yard setbacks:
(a) Single-family detached: 8 feet, except street side yards;
(b) Single-family attached: 12 feet on each side for each building, except street side yards; and
(c) Multi-family: 30 feet except street side yards, provided that if no windows or doors face the property line the setback along a non-street boundary line may be reduced to 15 feet.
(5) Minimum rear yard setback: 30 feet; and
(6) Maximum building height: two stories in the case of multi-family and 35 feet for single- family dwellings and nonresidential buildings, provided that no building for any use 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.
(F) Performance standards for multi-family development.
(1) Maximum building size: eight dwelling units;
(2) Each multi-family dwelling unit shall have a minimum finished floor area of 700 square feet exclusive of balconies or decks, porches and garages;
(3) Private open space shall be provided adjacent and accessible to each multi-family dwelling unit, consisting of a balcony, deck or yard. Private open space for ground-level dwelling units shall have a minimum dimension of ten feet and minimum area of 150 square feet. Balconies or decks for units located entirely above the ground floor shall have a minimum dimension of six feet and minimum area of 75 square feet;
(4) Parking shall not be located in the minimum front yard; a minimum side yard adjacent to a street; or in a side yard adjacent to property that is zoned”R-1L,” “R-1I” or “R-1S”;
(5) A minimum of four overstory trees, one understory tree and five shrubs shall be provided for each 20,000 square feet of lot area, exclusive of buffer yard plantings; and
(6) Refuse collection areas shall be enclosed by an opaque fence or masonry wall that is a minimum of six feet in height, and setback a minimum of 30 feet from any property that is zoned “R-1L,” “R-1I” or “R-1S”.