Chapter 15.13
MANUFACTURED HOMES AND MODULAR HOMES

Sections:

15.13.010    Definitions.

15.13.020    Foundations required.

15.13.030    Permit fees.

15.13.040    Violation—Penalty.

15.13.010 Definitions.

A.    “Manufactured home” means a single-family dwelling built in accordance with the Department of Housing and Urban Development (HUD) Manufactured Home Construction and Safety Standards Act, which is a national, preemptive building code. Beginning July 1, 2005, RCW 35.63.160 added to the definitions, “new or designated manufactured home” which: (1) is comprised of at least two fully enclosed parallel sections each of not less than twelve feet wide by thirty-six feet long; and (2) was originally constructed with and now has a composition or wood shake or shingle, coated metal, or similar roof of not less than 3:12 pitch; and (3) has exterior siding similar in appearance to siding materials commonly used on conventional site-built International Residential Building Code single-family residences. “New manufactured home” means any manufactured home required to be titled under RCW Title 46, which has not been previously titled to a retail purchaser, and is not a “used mobile home” as defined in RCW 82.45.032(2).

B.    “Mobile home” means a factory-built dwelling built prior to June 15, 1976, to standards other than the HUD code, and acceptable under applicable state codes in effect at the time of construction or introduction of the home into the state. Mobile homes have not been built since introduction of the HUD Manufactured Home Construction and Safety Standards Act.

C.    “Modular home” means a building constructed according to the State Department of Labor and Industries specifications for factory-built homes.

D.    “Manufactured home, double-wide or larger” refers to factory-built, single-family structure that is comprised of more than one parallel section, each section being not less than twelve feet in width by thirty-six feet in length, which are joined together. A double-wide or larger manufactured home must meet the minimum size requirements in the zoning district where it will be placed. A double-wide manufactured home must comply with the Construction and Safety Standards Act of 1974 and with Department of Housing and Urban Development (HUD) manufactured housing standards. This constitutes a national, preemptive building code.

(Ord. 1069, 2021; Ord. 803 § 5 (part), 2006: Ord. 647 § 5 (part), 1998: Ord. 203 § 1 (part), 1976)

15.13.020 Foundations required.

All installations of manufactured homes within the city shall be in accordance with the manufacturer’s instructions, or the specifications of an engineer or architect licensed in Washington State or the American National Standard Institute’s (ANSI) A225.1 for relocated homes when the manufacturer’s installation instructions are not available. The city requires concrete ribbon, runner or full slab foundations. WAC 296-150M-600 allows local jurisdictions to impose their requirements for snow and wind loads on manufactured homes as long as all structures within their jurisdiction are required to comply with the same standard and provided, those installing the manufactured home are given options to satisfy that standard. WAC 296-150M-0610(1)(c).

A.    A manufactured home must be anchored per the manufacturer’s installation instructions or per the design of a professional engineer or architect licensed in Washington.

B.    A manufactured home must have a skirting around its entire perimeter. It must be installed per the manufacturer’s installation instructions or if the manufacturer is not specific, the skirting must be of materials suitable for ground contact. Metal fasteners must be galvanized, stainless steel or other corrosive-resistant material. Ferrous metal members in contact with the earth, other than those that are galvanized or stainless steel, must be coated with an asphaltic emulsion. Skirting must not be attached in such a manner that can cause water to be trapped between the skirting and siding or trim. The skirting must be recessed behind the siding or trim.

C.    The manufactured home site must be prepared per the manufacturer’s installation manual or per ANSI A225.1, 1994 Edition.

D.    The foundations for new or designated manufactured homes in divisions other than Divisions 5A, 7, 12, or 24A shall have foundations in accordance with Section 17.16.070.

(Ord. 803 § 5 (part), 2006: Ord. 647 § 5 (part), 1998: Ord. 203 § 1 (part), 1976)

15.13.030 Permit fees.

The building permit fee for all manufactured homes placed in Divisions 5A, 7, 12 and 24A shall be as follows: manufactured homes up to fourteen feet in width shall be assessed a permit fee of four hundred and fifteen dollars. The permit fee for a manufactured home having a width of fifteen to twenty-eight feet shall be six hundred and sixty-five dollars. Manufactured homes exceeding twenty-eight feet in width shall be assessed a permit fee of seven hundred and fifteen dollars.

New or designated manufactured homes placed in other than the above four divisions shall have permit fees determined by the same method as traditional site-built homes. (Ord. 803 § 5 (part), 2006: Ord. 647 § 5 (part), 1998: Ord. 558 § 1, 1993: Ord. 289 § 8, 1980: Ord. 203 § 1 (part), 1976)

15.13.040 Violation—Penalty.

Any person violating any provision of this chapter shall be guilty of a Class B offense as defined in Title 7 of this code. Each day the violation continues shall be a separate offense. (Ord. 803 § 5 (part), 2006)