1.   Permitted Principal Uses.

      A.   Any use or structure permitted and as regulated in Section 165.11(1), except as hereinafter modified.

      B.   Three- to six-family dwellings. Separate, joint or divided ownership of each single-family dwelling unit of a multiple-family dwelling unit, subject to and conditioned upon compliance with the following requirements:

         (1)   The lot, parcel of real estate, or structure being divided into three or more parcels allowing separate, common or joint ownership thereof must originally meet all of the requirements for uses permitted in an R-3 District.

         (2)   A multiple-family dwelling must be in existence, or will be constructed thereon, consisting of three or more laterally and/or vertically attached single-family dwelling units with each unit having a separate access and a utility service.

         (3)   The division of the lot, parcel and/or structure into three or more single-family dwelling units shall be in such a manner as to easily define and describe each of said single-family dwelling unit, as well as any land and/or structure areas which are owned or used separately, in common or jointly among the various unit owners.

         (4)   Prior to division as above provided, there shall be recorded in the Washington County Recorder’s Office, restrictive and protective covenants providing that the owners thereof are jointly and severally liable and responsible for the maintenance and repair of all joint or common aspects, including, but not limited to, utilities, water, sanitary sewer, storm sewer, easements, driveways, land, and structural components to the point of division.

         (5)   The multiple-family dwelling shall in all respects, other than the division thereof, be considered as any other multiple-family dwelling and meet all requirements pertaining thereto.

         (6)   Nothing herein shall be construed to allow the separate other use of one or more of the resulting parcels of land and/or structures in the event the multiple-family dwelling unit is partially or totally damaged or destroyed.

   2.   When Authorized by Board of Adjustment.

      A.   Any use regulated in Section 165.07, except as hereinafter modified.

      B.   Child day care facilities, day nurseries, or nursery schools, provided that any play lot used in connection therewith be suitably fenced and screened in accordance with requirements of the Board.

      C.   Tourist homes; motels or motor hotels on lots abutting on State or federal highways, subject to the applicable provisions of Section 165.23.

      D.   The following on lots abutting on State or federal highways: office of civic, religious or charitable organizations and financial or insurance institutions conducting their activities primarily by mail and not handling merchandise or rendering services on the premises; offices devoted to real estate, insurance, management, and similar enterprises when conducting their activities primarily by mail or telephone and not displaying or handling merchandise on the premises; professional offices of architects, engineers, and lawyers.

   3.   Permitted Accessory Uses.

      A.   R-2 Residence District accessory uses.

      B.   Signs as regulated by Section 165.21.

   4.   Height Regulations. No principal structure shall exceed three stories or 35 feet in height, and no accessory structure shall exceed one story or 15 feet in height, except as provided in Section 165.24.

   5.   Lot Area, Frontage, and Yard Requirements. The following minimum requirements shall be observed, subject to the additional requirements, exceptions and modifications in Section 165.24. Each one-family residence shall be located on a lot containing at least 6,000 square feet. Each two-, three-, four-, five- or six-family structure shall be located on a lot having an area of 4,000 square feet for each family to be housed in the structure.