This district is established to provide for both single-family residences and two-family residences. It is intended particularly to act as a transition district between lower intensity uses such as permitted in C, R-1, and R-2 Districts and high intensity districts, consistent with the City’s Comprehensive Plan. This district is intended to be provided for lands where sewer and water is or will be required.

   1.   Permitted Uses:

      A.   Permitted uses in R-2 District.

      B.   Two-family dwellings.

      C.   Accessory uses.

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

      A.   Conditional uses in R-2 District.

      B.   Governmental administrative facilities.

      C.   Museums and libraries.

      D.   Accessory uses.

      E.   Single-family zero lot line dwelling per standards under zero lot line development definition in Section 165.05.

      F.   Bed and breakfast establishments.

      G.   Funeral homes.

      H.   Condominium housing of no more than four units per structure.

      I.   Florists and photo studios.

      J.   Daycare centers.

      K.   Barber and beauty shops.

      L.   Repair shops (other than auto or implement repairs) not over 200 square feet.

      M.   Cemetery monument sales.

      N.   Quilt shops.

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

   4.   Minimum Performance Standards For Permitted Uses:

      A.   Lot area and density: Single-family residences - 7,000 square feet; two family residences - 12,000 square feet.

      B.   Condominium density as per lot area and density requirements of the R-4 District.

      C.   Lot width: 60 feet; 80 feet for corner lot.

      D.   Height of structure: not over 35 feet.

      E.   Front yard setback: 25 feet.

      F.   Side yard setback: eight feet (four feet for lots less than 60 feet in width)

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

      H.   No more than 40 percent of a lot may be occupied by all principal and accessory buildings.

      I.   Area of principal structure: 900 square feet.

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

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

      L.   Parking: As provided in Section 165.08.

      M.   Signs: As provided in Chapter 155.

      N.   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 the finished surface grade at the residential unit.