Prosser City Zoning Code

In no instance shall a Recreational Vehicle, boat, trailer, modular structure, portable structure, or commercial truck in excess of one-ton gross vehicle weight be stored such that any portion of the vehicle encroaches upon a sight-distance area; nor shall a recreational vehicle, boat, trailer, modular structure, portable structure, or commercial truck in excess of one-ton gross vehicle weight be stored on or overhang a public right-of-way.

A Recreational Vehicle, boat, trailer, modular structure, portable structure, or commercial truck in excess of one-ton gross vehicle weight may be parked or stored in the rear yard; provided, that it be placed so as not to obstruct the sight distance in alleyways and not in the alley right-of-way.

A Recreational Vehicle, boat, trailer, modular structure, portable structure, or commercial truck in excess of one-ton gross vehicle weight may be parked or stored in a front yard setback; provided that no Recreational Vehicle, boat, trailer, modular structure, portable structure, or commercial truck in excess of one-ton gross vehicle weight shall be located closer than 20 feet from the improved right-of-way or the front face of the principal dwelling, whichever extends nearest the right-of-way.

Needing care, supervision or monitoring to perform activities of daily living or instrumental activities of daily living; or

Needing supports to ameliorate or compensate for the effects of the functional disability so as to lead as independent a life as possible; or

Having a physical or mental impairment which substantially limits one or more of such person's major life activities; or

Having a record of having such an impairment. Such term does not include current, illegal or active addiction to a controlled substance.

"Adult family home" means the regular family abode of a person or persons who are providing personal care, room and board to more than one, but not more than four adults who are not related by blood or marriage to the person or persons providing the services except, that a maximum of six adults may be permitted if the Washington State Department of Social and Health Services determines that the home and the provider are capable of meeting standards and qualifications proved by law (RCW 70.128.010).

"Residential care facility" means a facility, licensed by the state, that cares for at least five, but not more than fifteen people with functional disabilities, that has not been licensed as an adult family home pursuant to RCW 70.128.185.

"Supported living arrangements" means a living unit owned or rented by one or more persons with functional disabilities who receive assistance with activities of daily living, instrumental activities of daily living, or medical care from an individual or agency licensed or reimbursed by a public agency to provide such assistance.

The unit must not have been previously occupied or no more than one year old.

The width of the installed unit must not be less than twenty feet. Such width does not include any accessory structure, including any garage.

The roof must be constructed or appear to be constructed of composition or wood shake or shingle, coated metal, or similar roof of not less than three to twelve pitch.

The minimum width of the eaves of the roof must be eight inches.

The exterior siding must be similar in appearance to siding materials commonly used on conventional site-built residences (i.e., wood clad siding or other hardwood siding material of equal or better grade standard and appearance).

Title elimination must occur within one year of installation.

The residential unit and its placement must conform with all other applicable regulations of the city, including zoning regulations not in direct conflict with this section. Nothing in this section expands the permitted uses or additional uses in A, R, or I districts.

If one-half-inch sheet rock has not been installed on the interior of all exterior walls, there must be no less than twenty feet between the unit and any other residential structure, and ten feet between the unit and any accessory structure or fence.

The manufactured home must be pit set on a permanent foundation with runners and tie downs in accordance with the installation instructions of the manufacturer of the unit.

The unit must be skirted with material which is similar in appearance to concrete and be provided with required crawl spaces and have nonclosable vents, unless a radon vent is installed.

Permit fees will be in accordance with the adopted fee schedule for manufactured homes.

Any addition or accessory structure must conform with city building codes and the uniform building code standards, as applicable.

The wheels and tongue of the unit must be removed.

No more than two units may be located on each block front, and must not be abutting parcels, unless the owner, prior to the placement of the unit, obtains a conditional use permit from the Prosser board of adjustment. Any conditional use permit granted by the board of adjustment must include a provision that the owner will fully comply with all of the other requirements of this section. Each unit must be located on a separate parcel.

The value of the unit, lot and improvements must not be at less than eighty percent of the average assessed value, as determined by the records of the Benton County assessor, of the land and improvements of other properties in the applicable block front.

The block front must be at least fifty percent developed with site-built dwellings which are habitable.

No recreational vehicle shall be occupied overnight for commercial purposes anywhere in the city. Exceptions to the rule may be allowed as listed below:

No recreational vehicle shall be used as a permanent place of abode, or dwelling, for indefinite periods of time; provided, however, one or two RV sites, as indicated on the binding site plan, may be occupied by park employees for a limited period of time not to exceed six continuous months. Occupancy in a park for more than fourteen consecutive days will be conclusively deemed to be a permanent occupancy. Any action toward removal of wheels of a recreational vehicle, except for temporary purposes of repair; or placement of the unit on a foundation, is prohibited.

No external appurtenances, such as carports, cabanas or patios, may be attached to any recreational vehicle while it is in a park. There shall be no outside storage of materials of appliances.

No space within a recreational vehicle park shall be rented for any purpose other than those expressly allowed by this section.

No person, company or corporation shall establish or modify a recreational vehicle park without first complying with the provisions of this section.

Recreational vehicle parks may be allowed as conditional uses in all zones of the city except no recreational vehicle park will be allowed in any residentially zoned area.

After development, the conditions of the soil, groundwater level, drainage and topography shall not create hazards to the property or to the health and safety of the occupants or others.

Parks must be located with direct access to a street with a minimum width of forty feet or such park must have been designed to provide for adequately safe ingress and egress to and from a public street with adequate frontage thereon to permit appropriate access to and from the park.

Minimum Site Area. The minimum size of a park is two acres.

Density. The number of recreational vehicles permitted in a park shall not exceed a density of twenty units per gross acre. During the permit review, the density may be limited further to ensure compatibility with the surrounding area.

Recreational Vehicle Site.

Access Points. Entrances and exits to the park must be designed for safe and convenient movement of traffic into and out of the park and minimize friction with free movement of traffic on adjacent streets. All traffic into and out of the park must be through such entrances and exits. No entrance or exit shall require a turn at an acute angle for vehicles moving in the direction intended, and radii of curbs and pavements at intersections must be such as to facilitate easy turning movements for vehicles with trailers attached. No material impediment to visibility shall be created or maintained which violates the city sight distance ordinance, Chapter 8.40.

Parking. At least one parking space shall be provided on each site. At least one parking space for each eight sites must be provided for visitor parking in the park.

Internal Park Roads. All internal park roads must be privately owned and maintained. Park roads must observe the following minimums:

Open Space/Recreational Facilities. A minimum of five percent of the park must be set aside and maintained as open space for the recreational use of park occupants. Such space and location must be accessible and usable by all residents of the park for passive or active recreation. Parking spaces, driveways, access streets and storage areas are not considered to be usable open space. The percentage requirements may be reduced if substantial and appropriate recreational facilities are provided, i.e., recreational buildings, basketball courts, swimming pool, etc.

Setbacks. No recreational vehicle site shall be closer than twenty-five feet from any exterior park property line abutting upon a major arterial, or residential zone, or ten feet from any other exterior park property line. Permanent structures within a park must have front and rear yards of twenty feet each, and minimum side yards of ten feet each.

Landscaping/Screening. The park must provide visual screening and landscaping as follows:

Signs. Signs and advertising devices must be in conformance with the city sign ordinance.

Utilities. At least thirty percent of all RV sites within each park must have water, sewer and electricity provided to them. At least sixty percent of all RV sites within each park must have water and electricity provided to them. All utility lines in each park must be underground and be approved by the proper agencies providing the inspections.

Storm Drainage. Storm drainage control facilities are subject to the approval of the public works director or designee.

Public Facilities. Recreational vehicle parks must provide the following public facilities in such quantity, size and location as is approved by the board of adjustment:

Other Utility Systems. If other utility systems such as natural gas, television cable, or telephone are installed in a recreational vehicle park, such installation must be in accord with state and local laws, rules and regulations.

Health Regulations. All recreational parks must comply with state and local health laws, rules and regulations.

Site Identification. All recreational vehicle sites must be well marked and numbered.

Design Standard Exceptions. The board of adjustment, after receiving recommendations of the city staff, may waive or modify any of the design standard requirements after finding that such improvements would not be detrimental to the existing or foreseeable development of the surrounding properties.

Such additional establishments and the parking areas primarily related to their operations shall not occupy more than five percent of the gross area of the park;

Such additional establishments shall present no visible evidence from any street outside the park of their commercial character which would attract customers other than occupants of the park;

The structures housing such facilities must not be located closer than fifty feet to any public street and shall not be directly accessible from any public street, but must be accessible only from a street within the park.

The owner of a recreational vehicle park will be responsible for the development and maintenance of the park in strict conformity with the site review, the conditional use permit and all applicable laws and ordinances.

A written management plan must be submitted for approval as a part of the conditional use permit process. It must include, at a minimum, proposed park rules including quiet hours, and proposed methods to enforce occupancy limitations and other requirements of this chapter. Quiet hours are defined in WAC Chapter 173.60.

Applications for a conditional use permit and site review must be in accord with Chapter 18.75.

In addition to the property owner list required by Chapter 18.75, the application must be accompanied by a twenty-four by thirty-six-inch drawing, on mylar, and twelve copies of the site plan which must show, but not be limited, to the following:

Application fees shall be collected as follows:

Board of Adjustment Hearing. In reviewing the application, the board will consider the following: