Two or more residential buildings of similar or different character may be built upon one lot or parcel of land when a site plan is submitted to and approved by the Planning Commission and when the following site development requirements have been complied with:
   (a)   Minimum Site Area. No group housing development shall be authorized with a gross site area less than two acres.
   (b)   Minimum Lot Area. No group housing development shall be established on a lot or parcel having a width less than 150 feet, provided that for group housing the average lot area per family or dwelling unit shall not be less than 2,500 square feet.
   (c)   Maximum Lot Coverage. Not more than 35% of the net area within property lines within a group housing project, including accessory buildings, shall be covered by buildings.
   (d)   Yards and Other Open Space.
      (1)   Between buildings. The minimum horizontal distance between buildings front to front, rear to rear, or front to rear) shall be 50 feet for buildings one story in height. This distance shall be increased by not less than 5 feet for every story added. The minimum distance between buildings may be decreased by as much as 10 feet toward one end if it is increased by a similar distance at the other and consistent modifications are permitted by the Planning Commission to accommodate plans which are not conventional in their outline or in their relation to other buildings.
      (2)   Between ends of buildings. The horizontal distance between ends of buildings shall be 20 feet or more for one or two-story buildings. These distances shall be increased by not less than 5 feet for every story added.
      (3)   Closed courts. No closed courts shall be permitted. However, open arcades or garden walls not over 6 feet in height shall not be deemed enclosing features.
      (4)   Yard dimensions. For buildings up to 35 feet in height, no building shall be closer than 25 feet to any street, 35 feet to any rear property line or 20 feet to an interior side property line. For each one foot of building height above 35 feet, one foot shall be added to required front, side and rear yards.
      (5)   Other dimensions. No dwelling unit in a group housing development shall be closer to a street or private access drive than 25 feet or shall be further from a street or private access drive than 150 feet.
      (6)   Usable open space. A minimum usable open space area of 100 square feet per dwelling unit shall be provided within group housing developments. Such open space shall be provided at ground level, unoccupied by principal or accessory buildings, and available to all occupants of the group housing development. Each open space area so provided shall have a minimum total area of 1,200 square feet and shall be unobstructed to the sky and shall not be devoted to service driveways or off-street parking or loading space, but shall be usable for greenery, drying yards, recreational space and other leisure activity normally carried on outdoors.
   (e)   Maximum Building Height. The maximum building height of buildings housing the principal use shall be governed by the yard and lot area requirements. Refer to Section 1294.06 for accessory building regulations. Refer to Section 1294.18 for building height limitations for nonresidential structures in residential districts.
   (f)   Signs. Signs shall be in accordance with requirements specified in Chapter 846.
   (g)   Off-Street Parking. Off-street parking spaces shall be provided as specified in Chapter 1288.
   (h)   Private Streets. Private streets or private access drives may be permitted within group housing developments, provided that the following minimum requirements are met:
      (1)   All streets, roadways or private access drives will be paved to a minimum width of 20 feet when parking is prohibited. Additional widths for streets may be required by the Planning Commission based upon the particular density and building relationship proposals of the proposed group housing development.
      (2)   No dead-end street or roadway shall serve more than 100 families as a means of vehicular access.
      (3)   Suitable turning facilities shall be provided for vehicles at the terminus of all dead-end streets or roadways. A minimum radius of 50 feet shall be required for all turnarounds, and additional width may be required by the Commission after consideration of the vehicular needs of a particular group housing development proposal.
      (4)   Satisfactory arrangements have been made with the Commission regarding the maintenance and repair of streets, roadways or access drives.
(Ord. 89. Passed 4-10-72; Ord. 2003-7. Passed 1-12-04; Ord. 2022-02. Passed 4-11-22.)