A. Purpose And Intent: The purpose of this section is to establish standards and regulations governing the location and approval of manufactured housing in the City. It is the intent of these regulations to allow a mix of housing types and living styles. However, this should occur in a manner which will not adversely affect existing neighborhoods. For this reason, standards have been set that will regulate the appearance of the manufactured home, allowing only those that are acceptably similar in appearance to site built dwellings on individual lots in all residential zoning districts. The Planning and Zoning Commission and/or City Council may subject any such manufactured home and the lot on which it is placed to any or all of the same development standards to which any single-family residential dwelling on the same lot would be subject, including, but not limited to, building setback standards, side and rear yard requirements, standards for enclosures, access, and vehicle parking and architectural and aesthetic requirements. However, any architectural requirements imposed on the manufactured home itself, exclusive of any requirement for any and all additional enclosures, shall be limited to roofing and siding material. In no case may the Planning and Zoning Commission or City Council apply any development standards which will have the effect of totally precluding manufactured homes from being installed as permanent residences. (1984 Code § 4-4-1)
FOUNDATION SYSTEM: An assembly of materials constructed, not intended to be removed from its installation site, which is designed to support the structure and engineered to resist the imposition of external natural forces.
GUIDELINES FOR MANUFACTURED HOUSING INSTALLATIONS: (Self- explanatory) The current edition as written by the International Conference Of Building Officials.
MANUFACTURED HOME: A dwelling unit which is fabricated in one or more sections at a location other than the homesite by assembly line type production techniques or by other construction methods unique to an off site manufacturing process. Every section shall bear a label certifying that it is built in compliance with the federal manufactured home construction and safety standards. For mobile homes built prior to June 15, 1976, a label certifying compliance to the standard mobile home, NFPA 501, ANSI 119.1, in effect at the time of manufacture, is required. For the purpose of this guideline, a mobile home shall be considered a manufactured home. A manufactured home is designed to be towed on its own chassis or be site delivered by alternative means. The home must also meet the criteria established in subsection C of this section. (1984 Code § 4-4-2)
C. Development Standards:
1. Specified: Manufactured homes built since June 15, 1976, and manufactured homes built prior to June 15, 1976, which have been updated to standards required of manufactured homes built after that date:
a. Allowed in zones SFR and LLR.
b. Shall have a metallic, wood shake or asphalt shingle roof with a minimum slope of sixteen percent (16%) (2:12).
c. Shall have horizontal or vertical aluminum, simulated wood or wood siding.
d. Shall have a foundation fascia that is similar in appearance and durability to masonry foundation of site built dwellings, as approved by the building inspector, which surrounds the entire perimeter of the structure and completely encloses the space between the siding and the finished grade.
e. Electrical, gas, water and sewer connections shall be made permanent. Gas shutoff valves, meters and regulators shall not be located beneath the manufactured home.
f. Shall comply with all other applicable requirements of the zoning district in which the manufactured home is located (such as lot size and setback requirements).
2. Accessory Structures: Attached accessory structures, as permitted in the zoning district in which the manufactured home is to be located, shall be similar in material and integrated into the design of the structure. Accessory structures must meet international building code standards or HUD standards.
3. Permanent Foundation: All manufactured homes placed on privately owned lots which lie outside of manufactured home courts or manufactured home parks, shall comply with Idaho Code section 44-2201 et seq., and shall be placed on a permanent foundation. A permanent foundation shall comply with the following requirements:
a. I-Beam Ribbon Footings: Ribbon footings shall be poured concrete continuous footings at least twenty inches (20") wide and eight inches (8") deep; placed on firm, undisturbed soil below the prevailing frost line. Slabs shall be level and parallel to, and centered on, the main frame beams and extending to the end of the frames. Slabs shall contain three (3) no. 4 reinforcing rods evenly spaced.
b. Piers: Blocking shall have a maximum spacing of six feet (6').
c. Centerline Support: The minimum centerline support base block shall be sixteen inches by sixteen inches by four inches (16" x 16" x 4"). However, when the manufacturer's setup instructions require larger supports, then those requirements shall be met.
d. Anchoring: Weather resistant anchor ties shall be embedded in the outside ribbon footing within three feet (3') of each end and a maximum of twelve feet (12') between centers and shall be tied to the I-beam with cable or zinc coated strapping. Anchor ties shall be designed for a three thousand one hundred fifty (3,150) pound working load and withstand a fifty percent (50%) overload (4,750 pounds).
e. Crawl Space Enclosure: The crawl space beneath the home shall have a perimeter fascia enclosure adequately secured to the perimeter of the home and designed and supported to resist all forces to which it may be subject, without transmitting those forces to the building superstructure. The bottom of the enclosure shall be below the prevailing frost level. Minimum venting of the perimeter fascia enclosure shall be one minimum ninety six (96) square inch vent (net size of screen) every twenty five feet (25'), and to include one three feet (3') from each corner in both directions. No fascia shall have less than eight (8) vents. (1984 Code § 4-4-3; amd. 2014 Code)
D. Administration And Enforcement: Prior to locating the manufactured home on a lot, applications for approval of manufactured housing shall be submitted to the building inspector on the standard prescribed form. In addition to such information which is generally required for building permits and which is necessary for administrative purposes, such applications shall also include all information necessary to determine the manufactured home's conformity with subsection C of this section, including exterior siding, foundation and any other applicable information. (1984 Code § 4-4-4)
E. Criteria For Homes Placed Within City Limits:
1. Approval Stickers: All new manufactured housing, modular homes and mobile homes placed for occupancy within the city limits, whether in an established mobile home park or on any individual lot, shall have any and all approval stickers as required by the state and shall have a date of manufacture after June 15, 1976.
2. Conformity To Codes: All previously owned, used, significantly altered, moved or rebuilt homes, modular homes and mobile homes placed within the city limits shall meet all international building code requirements, all state electrical codes and all state plumbing codes.
3. Certificate Of Occupancy: No structures shall be occupied without approvals outlined in subsections E1 and E2 of this section, and without an occupancy certificate being issued by the building inspector or building official. (1984 Code § 4-4-5; amd. 2014 Code)