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In granting conditional use permits for mobile home parks, the following regulations shall apply, except when more restrictive conditions are imposed by the hearing examiner:

(1) Minimum site size shall be five acres and density shall be a minimum of four dwelling units per net acre pursuant to SCC 30.23.020 and a maximum of eight dwelling units per gross acre;

(2) Evidence of water and sewer facilities. The developer shall present evidence to indicate the following:

(a) That the proposed development will have an adequate public water supply meeting applicable state and local requirements;

(b) That the proposed mobile home park will be served by a fire protection system meeting the requirements of the Snohomish County fire marshal; and

(c) That the proposed mobile home park will be immediately served by a sanitary sewer system and that connection to such sewers is feasible. Alternate devices or methods may be used if they have received prior approval from the state Department of Social and Health Services and the Snohomish Health District in accordance with the procedure established in WAC 246-272-04001;

(3) Flood hazard. Mobile home park sites shall not be approved if the site is located within a designated 100-year floodplain;

(4) Circulation system.

(a) All interior mobile home park roads shall be private roads.

(b) All interior mobile home park roads shall be constructed within a tract or easement which shall extend at least two feet beyond the paved surface but which shall, in no case, be less than 30 feet in width.

(c) Park roads shall have widths and surfacing as follows:

(i) park roads shall have a minimum paved width of 20 feet. One-way roads shall have a minimum 12-foot travel lane and an eight-foot parking lane. Two-way roads shall have a minimum of two 10-foot travel lanes and may have eight-foot parking lane(s); and

(ii) park roads shall have surfacing depths as proposed by a licensed engineer and approved by the department.

(d) Cul-de-sac turnarounds shall have a minimum pavement width of 40 feet and a minimum diameter of 80 feet, exclusive of any parking lanes or areas;

(5) Bulk requirements.

(a) Setbacks. All mobile homes, together with their additions and appurtenant structures, accessory structures, and other structures on the site (excluding fences), shall observe the following setbacks (excluding any hitch or towing fixture):

(i) park roads - 15 feet from centerline of tract or easement, but in no case less than five feet from the paved surfaced edge.

(ii) exterior site boundary, not abutting an off-site public or private right-of-way - 15 feet from property line.

(iii) exterior site boundary, abutting an off-site public right-of-way or private road less than 60 feet in width - 50 feet from centerline of right-of-way.

(iv) exterior site boundary, abutting an off-site public right-of-way or private road 60 feet or more in width - one-half right-of-way plus 20 feet measured from centerline.

(b) Structure separations. A minimum 10-foot separation shall be maintained between all mobile homes, including their habitable additions. One-hour fire resistant structures may abut the unit they serve and shall maintain a minimum three-foot separation from adjacent mobile homes. Structures that are not fire resistant shall maintain a minimum six-foot separation from all other structures and mobile homes, except that carports may abut the unit they serve;

(6) Parking requirements.

(a) Two off-street parking spaces, located adjacent to each respective mobile home pad, shall be provided for each unit and shall be surfaced.

(b) Off-street guest parking shall be provided at the ratio of one parking space for each four mobile home pads and shall be distributed for convenient access to all pads and may be provided by a parking land and/or separate parking areas. Clubhouse and community building parking facilities may account for up to 50 percent of this requirement.

(c) All off-street parking spaces shall meet the minimum dimension requirements of chapter 30.26 SCC;

(7) Storage facilities.

(a) Outside storage of household items and equipment shall not be permitted within the mobile home park. It shall be the responsibility of the park management to ensure compliance with this requirement.

(b) A bulk storage and parking area for boats, campers, travel trailers, etc., shall be provided within the mobile home park. A minimum of 300 square feet of space, exclusive of driveways, shall be provided for every 10 mobile home pads. Bulk storage and parking areas shall be separated from all other parking facilities and shall be provided with some means of security. The requirements of this subsection may be waived by the hearing examiner when the mobile home park developer/owner agrees to prohibit the storage of such items within the park.

(8) Tree retention and landscaping. Mobile home parks shall meet the applicable tree retention, screening and landscaping requirements of chapter 30.25 SCC.

(9) Open space. All mobile home parks shall include a minimum of 20 percent of the site area for common open space. Open space acreage may include community recreational areas and facilities such as playgrounds, swimming pools, hobby and craft shops. Planting strips specified in EDDS and other landscaping required by chapter 30.25 SCC may account for no more than 50 percent of the required open space. The following areas shall not be included as open space:

(a) Surfaced widths of park roads;

(b) Bulk storage, guest parking areas; and

(c) Minimum ground area for each pad, calculated as follows:

(i) Single wide - 3,200 square feet;

(ii) Double wide - 4,300 square feet; and

(iii) Triple wide - 5,400 square feet.

(10) Lighting. Adequate lighting shall be provided to illuminate streets, driveways, and walkways for the safe movement of pedestrians and vehicles.

(11) Utilities. All water, sewer, electrical, and communication service lines shall be underground. (Added by Amended Ord. 02-064, Dec. 9, 2002, Eff date Feb. 1, 2003; Amended by Amended Ord. 08-101, Jan. 21, 2009, Eff date Apr. 21, 2009).