§ 27-406.   R-4 Residential District.
   1.   Purpose. The purpose of this District is to provide reasonable standards for the orderly expansion of high density, urban residential development in areas of the Township with similar existing uses, to encourage the preservation of open spaces and the conservation of natural and groundwater resources, and to exclude uses incompatible with residential neighborhoods. Public water and sewer shall be utilized in this district.
   2.   Permitted Uses.
      A.   Single-family detached dwelling.
      B.   Single-family semi-detached dwelling.
      C.   Two-family dwelling.
      D.   Single-family attached dwelling.
      E.   Multi-family dwelling.
      F.   Mobile home parks (see § 27-644).
      G.   House of worship (see § 27-636).
      H.   Municipal buildings, facilities or uses.
      I.   Public and nonprofit parks.
      J.   Public and private schools (see § 27-648).
      K.   Roadside stand (§ 27-656).
      L.   Accessory uses customarily incidental to the above permitted uses.
      M.   Accessory family dwelling unit (see § 27-603).
      N.   Group home (§ 27-630).
      O.   No impact home based business (§ 27-645).
      P.   Personal communication transmitting and receiving facility.
      Q.   Shared residence.
      R.   Non-tower WCF that do not substantially change the dimensions of the structure to which they are attached (see § 27-1201).
   3.   Special Exceptions.
      A.   Care facilities (see § 27-612).
      B.   Half-way house (see § 27-631).
      C.   Home occupations (see § 27-632).
      D.   Age-restricted community (see § 27-605).
      E.   Public/semi-public facilities and uses (see § 27-649).
      F.   Public utility buildings and/or service structures (see § 27-650).
      G.   Residential conversions (see § 27-653).
      H.   Rooming house (see § 27-657).
      I.   Non-tower WCF that substantially change the dimensions of the structure to which they are attached (§ 27-1201).
    4.   Prohibited Uses.
      A.   Keeping or raising of livestock. This provision shall not apply to existing agricultural operations as of the date of the adoption of this ordinance.
   5.   Bulk and Area Regulations.
      A.   Residential uses.
         (1)   The following lot area, width, depth, and setback standards shall apply to residential uses based on the type of dwelling unit:
Dwelling Type
Minimu m Lot Area (sq. ft.)
Minimum Lot Width (feet)
Minimum Lot Depth (feet)
Minimum Setback (feet)
Front
Side
Rear
Dwelling Type
Minimu m Lot Area (sq. ft.)
Minimum Lot Width (feet)
Minimum Lot Depth (feet)
Minimum Setback (feet)
Front
Side
Rear
Single-family detached
7,500
60
100
35
10
30
Single-family semi-detached
3,000
20
100
35
10
30
Two-family
7,500
60
100
35
10
30
Single-family attached development*
43,560
150
150
35
20
30
Multi-family development*
43,560
150
150
50
25
50
Mobile home park
N/A
150
150
50
25
50
 
*Standards refer to the development and not individual units. For standards specific to each unit and other design criteria, see § 27-408.4.A.(5).
         (2)   Maximum height: Two and one-half stories but not to exceed 35 feet.
         (3)   Maximum lot coverage:
            (a)   Single-family detached, single-family semi-detached, two-family: 35%.
            (b)   Single-family attached and multi-family: 60%.
         (4)   Maximum density: Eight dwelling units per acre.
         (5)   Special standards for multiunit buildings:
            (a)   Single-family attached (townhouse).
               1)   Minimum lot area per dwelling unit: 2,000 sq. ft.
               2)   Minimum width per dwelling unit: 20 feet.
               3)   Maximum length of grouping: Six units with overall length of 120 feet.
               4)   Setback requirements: No more than two contiguous units may have the same front yard setback. The minimum difference of staggered, setbacks shall be two feet.
            (b)   Multi-family.
               1)   Maximum length of building: 200 feet.
            (c)   Separation between buildings. These regulations apply when more than one building occupies a common lot.
               1)   Front-to-front, rear to-rear parallel buildings shall have 40 feet between-faces of the building for one story in height, plus five feet for each additional story. If the front or rear faces are obliquely aligned, the above distances may be decreased by as much as ten feet at one end if increased by similar or greater distance at the other end.
               2)   A minimum yard space of 30 feet is required between end walls of buildings. If the buildings are at right angles to each other, the distance between the corners of the end walls of the building may be reduced to a minimum of 20 feet.
               3)   A minimum yard space of 30 feet is required between end walls and front or rear faces of buildings.
         (6)   Buffer yards: In accordance with § 27-503. C.(6).
      B.   Nonresidential Uses. The following design standards shall apply to nonresidential uses.
         (1)   Minimum lot area: two acres.
         (2)   Minimum lot width: 100 feet.
         (3)   Minimum lot depth: 100 feet.
         (4)   Minimum setback:
            (a)   Front setback: 35 feet.
            (b)   Side setback: 30 feet.
            (c)   Rear setback: 30 feet.
         (5)   Maximum height: 45 feet.
         (6)   Maximum lot coverage: 35%.
   6.   Minimum Off-Street Parking. Off-street parking shall be provided in accordance with Part 7.
   7.   Signs. Signs shall be provided in accordance with Part 8.
   8.   Supplementary Regulations. Part 5, “Supplementary Regulations,” sets forth regulations which shall apply to all districts.
   9.   Conservation-Based Design. Standards in § 27-618 shall apply.
(Ord. 2015-06, 9/28/2015; as amended by Ord. 2019-03, 10/28/2019, §§ 3, 4)