This district is established to provide an office, services, and mixed residential district intended to provide a transition between lower density detached housing areas and more intense non-residential land usage, consistent with the City’s Comprehensive Plan.

   1.   Permitted Uses:

      A.   Permitted uses in R-3 District.

      B.   Multiple-family dwellings.

      C.   Townhouses and garden apartments.

      D.   Condominium housing of up to eight units per structure.

      E.   Religious and charitable institutions.

      F.   Private clubs and lodges, except those the principal use of which is a service customarily carried on as a business.

      G.   Funeral homes.

      H.   Accessory uses.

   2.   Conditional Uses [Performance Standards as provided in Section 165.10(3)]:

      A.   Conditional uses in R-3 District.

      B.   Hospitals and out-patient clinics and associated facilities.

      C.   Rest homes, nursing homes, and homes for the aged.

      D.   Half-way houses.

      E.   Accessory uses.

      F.   Bed and breakfast establishments.

      G.   Professional offices.

      H.   Other uses similar to and compatible with the uses enumerated above.

   3.   Special Exception Uses: As provided in Section 165.11(3).

   4.   Minimum Performance Standards For Permitted Uses:

      A.   Lot area and density: For multiple-family residence buildings of three or more units and condominiums: 3,000 square feet of lot area each of the first 10 residence units and 2,500 square feet for every residence unit in excess of 10. Single- and two-family residences: same as for the R-3 District.

      B.   Lot width: 80 feet; 100 feet for corner lots.

      C.   Height of structure: not over 45 feet or four stories.

      D.   Front yard setback: 25 feet.

      E.   Side yard setback: eight feet.

      F.   Rear yard setback: 25 feet (two feet for accessory structures)

      G.   Area of principal structure: 900 square feet.

      H.   Length and width of principal and all residential structures: 24 feet (measured at the narrowest points, excluding attached garages, porches, and breezeways).

      I.   Parking: As provided in Section 165.08.

      J.   The required front yard setback shall not be paved-over for parking or any other storage use.

      K.   Signs: As provided in the Chapter 155.

      L.   All residential structures, including mobile homes or other manufactured homes, shall be converted to real estate under the provision of Iowa law and recognized as such by the County Assessor, and shall be placed on a permanent foundation extending continuously around the perimeter of the dwelling part of the structure. Such foundation shall be installed below the frost zone, but a minimum of 48 inches below finished surface grade at the residential unit.