Town of Johnston
Town of Johnston Zoning Ordinance
§ 340-25

Authorized departures from yard regulations

The following departures from the yard regulations otherwise applicable are hereby authorized:

  • A. Adjoining projecting buildings. Where a lot on one or both sides, having a main building which project beyond the established front yard line and has been so maintained since this chapter became effective, the front yard requirement on such lot may be the averages of said existing buildings or building. In no case shall this front yard requirement be less than 15 feet.
  • B. Projections of ornamental features. Projections of cornices, window sills, and other ornamental features may extend up to one foot into a required yard area from the structure.
  • C. Accessory structures. A permitted accessory structure may be placed in a rear yard area, but may be placed no closer than five feet to a lot line. No accessory structure so placed within a rear yard shall exceed 15 feet in height. Any structure which exceeds the height limitation will require a variance from the Zoning Board. No accessory structure shall exceed 150 square feet.
  • D. Fences and walls. Fences and walls not exceeding 10 feet may be placed in any yard area in an "I" district. In any other district, fences and walls may be constructed in side and rear yards up to six feet in height. In front yards the maximum height of walls and fences shall be four feet subject to the vision requirement in § 340-19 of this article.
  • E. Carports. A carport, where attached to the principal building, may be erected over a driveway in a side yard provided such structure is not over 24 feet in length and it is entirely open on three sides, except for necessary supporting columns and customary architectural features.
  • F. Three-sided lot. In the event that a lot contains only three sides, the width of the lot shall be considered to be the distance between side lot lines, measured along an arc at the required front yard depth.
  • G. Irregular lot. In the event the front yard of a lot abuts a curve, a cul-de-sac or a junction of two streets that form an interior angle approximating 90º, the width of the lot shall be considered to be the distance between the two side lot lines, measured at the required front yard depth.
  • H. In any Residential or Planned Development District, for those lots fronting entirely on cul-de-sac turnarounds, street frontage may be reduced to not less than 75% of the required frontage for the zone in which the property is located, but not less than 60 feet for any such lot. Frontage shall be measured along the chord to the street line as drawn between the two side lot lines. Lot width shall be maintained in accordance with the dimensional regulations of this chapter. Lot width shall be measured between the two side lot lines at the required front yard depth.

    [Amended 11-10-2003 by Ord. No. 2003-15]

  • I. Corner lot. On a corner lot, both yards fronting on intersecting streets shall have the depth required in a front yard for the applicable district.
  • J. Waiver of side yards. For the purpose of side yard regulations, the following dwellings with common party walls shall be considered as one building occupying one lot:
    • (1) Duplex dwellings.
    • (2) Row or town houses.