§ 152.037 R-15 RESIDENTIAL DISTRICT.
   (A)   The R-15 Residential District is established as a district in which the principal use of the land is for low density residential and agricultural purposes and to provide and protect low density residential areas for those desiring that type of environment. These districts are intended to ensure that residential development having access to public water supplies and dependent upon septic tanks for sewage disposal will occur at a sufficiently low density to provide a healthful environment.
   (B)   Within the R-15 Residential District, the following uses shall only be permitted:
      (1)   Principal uses.
         (a)   All uses permitted in the R-20 Residential District;
         (b)   Multi-family dwellings;
         (c)   Condominiums; and
         (d)   Individual mobile homes, as defined in § 152.005, and subject to the provisions of § 152.097.
      (2)   Special uses. The following uses shall be permitted subject to a Board of Adjustment review and approval: all special uses permitted in the R-20 Residential District.
      (3)   Accessory uses. Same as set forth under the R-20 Residential District, § 152.036.
      (4)   Dimensional requirements. Within an R-20 District as shown on the zoning map, the following dimensional requirements shall be complied with:
         (a)   Minimum mean lot width: 100 feet;
         (b)   Minimum required front building setback line: 25 feet from edge of ROW;
         (c)   Minimum required side yards for the principal building shall be at least 15 feet from property line or edge of ROW;
         (d)   Minimum required rear yard shall be 20% of the mean lot depth, provided that such yard need not exceed 30 feet;
         (e)   Height of buildings shall not exceed 35 feet unless the depth of the front and total width of the side yards required herein shall be increased by one foot for each two feet, or fraction thereof, of building height in excess of 35 feet; and
         (f)   For purposes of computing the size of lots in an R-15 District, the lot area may include public road rights-of-way and private road easements; provided, said rights-of-way and easements shall not exceed 30 feet in overall width for purposes of lot area computation.
      (5)   Minimum lot sizes and maximum lot coverage.
         (a)   Lots recorded prior to October 1,1993, to be used for single-family purposes or where the development does not require a Sedimentation/Erosion Control Plan under state law:
            1.   Minimum required lot area for each dwelling unit: 15,000 square feet; and
            2.   Maximum permissible lot coverage by principal and accessory buildings shall not exceed 50% of the lot area.
         (b)   Lots recorded after October 1, 1993, to be used for single-family purposes where the development does not require a Sedimentation/Erosion Control Plan under state law:
            1.   Option 1.
               A.   Minimum required lot area for each dwelling unit: 14,520 square feet (one- third acre), or 21,780 square feet (one-half acre) if the lot abuts a curb and gutter street system or if the lot is located in the WS-4 Critical Area; and
               B.   Maximum permissible lot coverage by principal and accessory buildings shall not exceed 50% of the total lot area.
            2.   Option 2.
               A.   Minimum required lot area for the first dwelling unit: 15,000 square feet;
               B.   Minimum required lot area for each additional unit: 5,000 square feet; and
               C.   Maximum permissible impervious coverage as defined in this chapter shall not exceed 36% of the total lot area, or 24% of the total lot area if the lot abuts a curb and gutter street system or if the lot is located in the WS-4 Critical Area.
         (c)   Lots to be used for multi-family where the development does not require a Sedimentation/Erosion Control Plan under state law:
            1.   Minimum required lot area for the first dwelling unit: 15,000 square feet;
            2.   Minimum required lot area for each additional unit: 5,000 square feet: and
            3.   Maximum permissible lot coverage by principal and accessory buildings shall not exceed 50% of the total lot area.
         (d)   Lots to be used for multi-family where the development requires a Sedimentation/Erosion Control Plan under state law:
            1.   Option 1.
               A.   Minimum required lot area for each dwelling unit: 14,520 square feet (one- third acre); or 21,780 square feet (one-half acre) if the lot abuts a curb and gutter street system or if the lot is located in the WS-4 critical area; and
               B.   Maximum permissible lot coverage by principal and accessory buildings shall not exceed 50 % of the lot area.
            2.   Option 2.
               A.   Minimum required lot area for the first dwelling unit: 15,000 square feet;
               B.   Minimum required lot area for each additional unit: 5,000 square feet; and
               C.   Maximum permissible impervious coverage as defined in this chapter shall not exceed 36 % of the total lot area, or 24 % of the total lot area if the lot abuts a curb and gutter street system or if the lot is located within the WS-4 critical area.
(Ord. passed 4-5-2010; Ord. passed 5-3-2021; Ord. passed 10-4-2021)