1162.16 NURSING AND CONVALESCENT HOMES, FOSTER CARE GROUP HOMES, ASSISTED LIVING FACILITIES AND SENIOR HOUSING.
   (a)   Minimum Size. Sites must have a minimum lot area of two acres, and all dwelling rooms shall have a minimum of 450 square feet per room.
   (b)   Separation Requirements. No foster care group home shall be located closer than 1,500 feet to any other state-licensed residential facility, measured from the nearest wall of each such structure. The Commission may permit a smaller separation between such facilities upon determining that such action will not result in an excessive concentration of such facilities in a single neighborhood, or in the City overall.
 
   (c)   Access. All access shall be from an arterial or collector street. Walkways shall be provided from the main building entrances to any sidewalks along the adjacent public streets. A sidewalk shall be placed along the entire road frontage of the facility per City standards.
   (d)   Allowable Density Modification. The allowable density of the underlying zoning district may be increased by no more than 50 percent for all nursing care units licensed by the State, or 25 percent for non-licensed nursing care and supportive care units.
 
   (e)   Accessory Uses. Accessory retail, restaurant, food service, office and service uses may be permitted within the principal residential building. No exterior signs of any type are permitted for these accessory uses.