1163.05 DEVELOPMENT STANDARDS.
   (a)   Minimum Lot Area.
      (1)   5,000 square feet for single-family detached dwellings;
      (2)   5,000 square feet for each unit of common wall two-family dwellings;
      (3)   7,500 square feet for other permitted uses
   (b)   Minimum Lot Width.
      (1)   Fifty (50) feet for single-family detached dwellings;
      (2)   Forty (40) feet for each unit of common wall two-family dwellings;
      (3)   Seventy (70) feet for other permitted uses.
   All lots shall have frontage on a publicly dedicated, improved street or highway.
   (c)   Minimum Front Yard Depth. Twenty (20) feet, or the average of the existing principal structures on the same side of the street and facing thereon within the same block, whichever is less.
   (d)   Minimum Side Yard Depth.
      (1)   Four (4) feet for single-family detached dwellings;
      (2)   Six (6) feet for common wall two-family dwellings, however, individual units are not required to meet side yard regulations where the common walls meet.
   (e)   Minimum Rear Yard Depth. Fifteen percent (15%) of lot depth, but not less than twenty (20) feet.
   (f)   Maximum Building Height. Thirty-five (35) feet.
   (g)   Maximum Lot Coverage. The area of all buildings and accessory structures in the R-3 District shall not exceed 50% of the area of the lot.
   (h)   Additional Requirements for New Lots Developed in the R-3 District. Presently undeveloped areas outside the older portion of the City may be developed in the R-3 District, subject to the following regulations:
      (1)   Development Plan. A Development Plan shall be required for all new residential development within the R-3 District, containing more than ten (10) dwelling units. Such Development Plan shall show the proposed layout of all streets, lots and buildings, as well as the location of all public spaces, and shall illustrate that the proposed development conforms with the purpose and intent of the R-3 District.
      (2)   Garages. All garages shall be located within the rear yard.
      (3)   Street Trees. Street trees shall be required along all new streets developed within R-3 District. The spacing of trees along streets shall be not less than thirty (30) feet on center.
      (4)   Sidewalks. Sidewalks at least (4) feet in width shall be required for both sides of all new streets within the R-3 District.
      (5)   Required Open Space. Not less than 15% of the total net developable area of the proposed development shall be dedicated to permanent open space parks, and/or public spaces. Such open space shall be granted to a homeowner's association, or may be donated to the City, if the location and physical condition of the land so donated is consistent with an adopted parks and open space plan and such donation is approved by City Council. For the purposes of this calculation, net developable area shall mean the area of the site proposed for development, minus public and/or private streets and/or alleys.