42-31. Residential District Four (R4)

  1. Purpose. The purpose of Residential District Four (R4) is to foster orderly growth where the principal use of land is low density residential. The intent of this district is to allow for limited residential development consistent with the recommendations of the Comprehensive Plan. This general use district is typically meant to be utilized outside areas designated as Utility Service Area (USA) in the Comprehensive Plan. It is recognized that this district is to be used in areas less suitable for dense or moderately dense development and is only zoned at the request of the property owner or appointed agent.
  2. Density and Dimensional Requirements. Each use allowed in this district shall, at a minimum, conform to the following dimensional requirements (in the case of a nonresidential use the residential density dimensional requirements shall not apply). In some cases a specific use may be required to meet the Supplemental Requirements as set forth in §42-62 (Supplemental Requirements).
    Table 2.5. R4 Density and Dimensional Requirements
    (1) Residential Density (units/acre) 0.20 (1 unit/5.0 acres)
    (4) Yard Setbacks (feet) Front or ROW Local 15
    Collector 20
    Thoroughfare 35
    Boulevard 50
    Expressway 60
    Freeway 90
    Side 15
    Rear 15
    (5) Maximum Height (feet) 40
    1. Residential density shall be calculated utilizing the entire acreage of a tract of land. Under this scenario, residential density shall be determined based on the following formula:

      Lot size x allowable units per acre = permitted dwelling units
      The following example assumes a 5 acre tract with an allowable density of 0.20 units/acre:
      5 acres x 0.20 units per acre = 1 permitted dwelling units

      The maximum residential density for portions of the tract with a slope of 60 percent or greater (where such slope areas of the tract account for ten (10) percent or more of the tract) shall be one- half (½) the eligible density. Residential density shall be applied:

      1. On a lot existing at the time of the initial adoption of this Chapter, where there is not adequate area to comply with the applicable standard residential density requirement;
      2. To single-family residential uses; and
      3. To two family attached dwelling.
    2. Accessory structures may be located in the side, rear or front yards and may be setback a minimum of five (5) feet from the side or rear property lines and ten (10) feet from the front or Right of Way (ROW).
    3. Conditional Rezoning Requirement. Developments proposing to have ten (10) or
      more multifamily dwellings shall apply as a conditional rezoning . Subdivisions proposing to cluster the dwelling units on fifty percent (50%) or less of the total project area used to calculate the allowed density, must apply as a conditional rezoning.
    4. Special Use Permit Requirements. Any use that requires a special use permit has a maximum impervious surface not to exceed 80% and a maximum floor area limit not to exceed 80,000 square feet (excluding machining and assembly operations, manufacturing and production operations and landscaping materials sales and storage).