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Kennewick City Zoning Code

CHAPTER 18

27 - ACCESSORY BUILDINGS, STRUCTURES, AND USES

18.27.010: - Generally.

In any R district, recreation shelters, storage shelters, covered patios, private garages, carports, and similar structures are permitted as accessory structures and must be in conformance with applicable provisions of Chapter 18.12.

(Ord. 5180 Sec. 1, 2007)

18.27.020: - Detached Accessory Building—Conformance Required.

Any accessory building, which is detached or only connected by a breezeway, must comply with this Chapter. An accessory building, which is an integral part of or has a common wall with the main structure, must comply with all provisions of this Title applicable to the main structure.

(Ord. 5180 Sec. 1, 2007)

18.27.030: - Accessory Building—Setback—Dimensions.

Accessory buildings must comply with applicable setbacks. Except in C, I, PF, UMU, and OS districts, detached accessory buildings may not be over 20 feet high. In all R and HMU districts, no accessory building may be closer than ten feet from any building on the same lot unless the accessory structure is constructed in accord with the International Building Code, in which case the separation can be reduced to four feet. In addition, no accessory structure may be within a radius of ten feet from the vertical centerline of a window in a dwelling on the same or an adjacent lot. It may not be within five feet of a side or rear property line but it may abut a rear property line adjacent to an alley, canal right-of-way or railroad right-of-way.

(Ord. 5744 Sec. 1, 2018;Ord. 5715 Sec. 1, 10-17-2017; Ord. 5180 Sec. 1, 2007)

18.27.040: - Fence Standards.

(1)

All fences must conform to the provisions of Title 15 and Chapters 18.12, 18.75 and 18.78.

(2)

All fences in excess of 36 inches in height must be constructed with steel posts or with pressure-treated wood posts. Wooden posts must be set in gravel and compacted by earth. Steel posts must be set in concrete. Fences must be adequate to withstand a minimum windload of 80 miles per hour.

(3)

All fences in residential zones except Residential, Suburban shall be constructed of material commonly used in residential fence construction, such as chain link, wood slat, masonry walls, ornamental iron, wood pickets, and similar material. Fences of synthetic materials that have the functional equivalence of natural or traditional material may be substituted. The Planning Director may adopt rules and regulations to implement this subsection.

(4)

Fences in Residential Suburban districts shall comply with provisions of this section. Fences for the containment of animals or the protection of crops, made from wood, barbwire, and electric wire are permitted. The Planning Director may adopt rules and regulations to implement this subsection.

(5)

Nothing in this section is intended to prohibit or restrict fences appropriate for a permitted use within any district, such as fences for protecting swimming pools, confining animals, protecting agricultural crops and the like.

(Ord. 5180 Sec. 1, 2007)

18.27.050: - Fences, Hedges, Walls—Height Requirements.

(1)

Fences, hedges, walls and the like in "R" districts may not be higher than 30 inches above the top of curb grade within a sight triangle as specified in 18.27.060, 36 inches above the top of curb grade in a required front yard or six feet above grade on other parts of the site. Chain link fences over six feet high are permitted around basketball courts, tennis courts, and similar activities if all setbacks are met.

(2)

Fences, sloping yards, retaining walls, or terraces may be constructed with a combined total elevation no greater than that of the adjacent foundation or existing grade of the lot line, whichever is higher. Walls, fences, and hedges may be added to this height if they do not exceed the height limits of this section as measured from the established finish grade.

(3)

If a retaining wall is 60 inches or more above the adjacent grade and is located along a lot line, a guardrail or fence not less than 36 inches high must be placed along the top of the wall.

(Ord. 5407 Sec. 10, 2012: Ord. 5180 Sec. 1, 2007)

18.27.060: - View Obstruction Prohibited.

(1)

Whenever streets intersect, walls, fences, sign faces, foliage, rocks, mounds, parked vehicles, boats, campers, or similar view obstructions must be in accord with the setback and height requirements of Chapter 13.12.

(2)

In any R district where a driveway intersects a street right-of-way, there shall be no wall, fence, sign face, foliage, rock, mound, parked vehicle, boat, camper, or similar view obstruction between 30 inches and 84 inches above the top of curb grade within two triangular areas on both sides of said driveway, each of which has legs measured ten feet from and perpendicular to the street right-of-way from the intersection points of the drive and street right-of-way on both sides of said driveways.

(3)

In any district, other than R districts, where a driveway intersects a street right-of-way, there shall be no wall, fence, sign face, foliage, rock, mound, parked vehicle, boat, camper, or similar view obstruction higher than 30 inches or lower than 84 inches above curb grade within two triangular areas on both sides of said driveway. The two triangular areas have a common leg, which extends 15 feet along the centerline of the drive beginning at and perpendicular to the curb line. The left triangle, when facing the street, has a second leg, which extends 140 feet along the street curb line from the centerline of the drive. The triangle to the right has a comparable leg, which extends 75 feet from the centerline of the drive.

(Ord. 5407 Sec. 11, 2012; Ord. 5180 Sec. 1, 2007)

18.27.070: - Dwelling Groups.

Each building in a dwelling group must be separated by at least ten feet. Buildings over 30 feet high must be separated by at least one foot for each three feet of building height. The UMU district is exempt from the provisions in this section.

(Ord. 5715 Sec. 2, 2017; Ord. 5180 Sec. 1, 2007)