Strike everything after the enacting clause and insert the following:

"NEW SECTION. Sec. 1. Tiny houses have become a trend across the nation to address the shortage of affordable housing. As tiny houses become more acceptable, the legislature finds that it is important to create space in the code for the regulation of tiny house siting. Individual cities and counties may allow tiny houses with wheels to be collected together as tiny house villages using the binding site plan method articulated in chapter 58.17 RCW.

Sec. 2. RCW 58.17.040 and 2004 c 239 s 1 are each amended to read as follows:

The provisions of this chapter shall not apply to:

(1) Cemeteries and other burial plots while used for that purpose;

(2) Divisions of land into lots or tracts each of which is one-one hundred twenty-eighth of a section of land or larger, or five acres or larger if the land is not capable of description as a fraction of a section of land, unless the governing authority of the city, town, or county in which the land is situated shall have adopted a subdivision ordinance requiring plat approval of such divisions: PROVIDED, That for purposes of computing the size of any lot under this item which borders on a street or road, the lot size shall be expanded to include that area which would be bounded by the center line of the road or street and the side lot lines of the lot running perpendicular to such center line;

(3) Divisions made by testamentary provisions, or the laws of descent;

(4) Divisions of land into lots or tracts classified for industrial or commercial use when the city, town, or county has approved a binding site plan for the use of the land in accordance with local regulations;

(5) A division for the purpose of lease when no residential structure other than mobile homes, tiny houses or tiny houses with wheels as defined in section 6 of this act, or travel trailers are permitted to be placed upon the land when the city, town, or county has approved a binding site plan for the use of the land in accordance with local regulations;

(6) A division made for the purpose of alteration by adjusting boundary lines, between platted or unplatted lots or both, which does not create any additional lot, tract, parcel, site, or division nor create any lot, tract, parcel, site, or division which contains insufficient area and dimension to meet minimum requirements for width and area for a building site;

(7) Divisions of land into lots or tracts if: (a) Such division is the result of subjecting a portion of a parcel or tract of land to either chapter 64.32 or 64.34 RCW subsequent to the recording of a binding site plan for all such land; (b) the improvements constructed or to be constructed thereon are required by the provisions of the binding site plan to be included in one or more condominiums or owned by an association or other legal entity in which the owners of units therein or their owners' associations have a membership or other legal or beneficial interest; (c) a city, town, or county has approved the binding site plan for all such land; (d) such approved binding site plan is recorded in the county or counties in which such land is located; and (e) the binding site plan contains thereon the following statement: "All development and use of the land described herein shall be in accordance with this binding site plan, as it may be amended with the approval of the city, town, or county having jurisdiction over the development of such land, and in accordance with such other governmental permits, approvals, regulations, requirements, and restrictions that may be imposed upon such land and the development and use thereof. Upon completion, the improvements on the land shall be included in one or more condominiums or owned by an association or other legal entity in which the owners of units therein or their owners' associations have a membership or other legal or beneficial interest. This binding site plan shall be binding upon all now or hereafter having any interest in the land described herein." The binding site plan may, but need not, depict or describe the boundaries of the lots or tracts resulting from subjecting a portion of the land to either chapter 64.32 or 64.34 RCW. A site plan shall be deemed to have been approved if the site plan was approved by a city, town, or county: (i) In connection with the final approval of a subdivision plat or planned unit development with respect to all of such land; or (ii) in connection with the issuance of building permits or final certificates of occupancy with respect to all of such land; or (iii) if not approved pursuant to (i) and (ii) of this subsection (7)(e), then pursuant to such other procedures as such city, town, or county may have established for the approval of a binding site plan;

(8) A division for the purpose of leasing land for facilities providing personal wireless services while used for that purpose. "Personal wireless services" means any federally licensed personal wireless service. "Facilities" means unstaffed facilities that are used for the transmission or reception, or both, of wireless communication services including, but not necessarily limited to, antenna arrays, transmission cables, equipment shelters, and support structures; and

(9) A division of land into lots or tracts of less than three acres that is recorded in accordance with chapter 58.09 RCW and is used or to be used for the purpose of establishing a site for construction and operation of consumer-owned or investor-owned electric utility facilities. For purposes of this subsection, "electric utility facilities" means unstaffed facilities, except for the presence of security personnel, that are used for or in connection with or to facilitate the transmission, distribution, sale, or furnishing of electricity including, but not limited to, electric power substations. This subsection does not exempt a division of land from the zoning and permitting laws and regulations of cities, towns, counties, and municipal corporations. Furthermore, this subsection only applies to electric utility facilities that will be placed into service to meet the electrical needs of a utility's existing and new customers. New customers are defined as electric service locations not already in existence as of the date that electric utility facilities subject to the provisions of this subsection are planned and constructed.

Sec. 3. RCW 35.21.684 and 2009 c 79 s 1 are each amended to read as follows:

(1) A city or town may not adopt an ordinance that has the effect, directly or indirectly, of discriminating against consumers' choices in the placement or use of a home in such a manner that is not equally applicable to all homes. Homes built to 42 U.S.C. Sec. 5401-5403 standards (as amended in 2000) must be regulated for the purposes of siting in the same manner as site built homes, factory built homes, or homes built to any other state construction or local design standard. However, except as provided in subsection (2) of this section, any city or town may require that:

(a) A manufactured home be a new manufactured home;

(b) The manufactured home be set upon a permanent foundation, as specified by the manufacturer, and that the space from the bottom of the home to the ground be enclosed by concrete or an approved concrete product which can be either load bearing or decorative;

(c) The manufactured home comply with all local design standards applicable to all other homes within the neighborhood in which the manufactured home is to be located;

(d) The home is thermally equivalent to the state energy code; and

(e) The manufactured home otherwise meets all other requirements for a designated manufactured home as defined in RCW 35.63.160.

A city with a population of one hundred thirty-five thousand or more may choose to designate its building official as the person responsible for issuing all permits, including department of labor and industries permits issued under chapter 43.22 RCW in accordance with an interlocal agreement under chapter 39.34 RCW, for alterations, remodeling, or expansion of manufactured housing located within the city limits under this section.

(2) A city or town may not adopt an ordinance that has the effect, directly or indirectly, of restricting the location of manufactured/mobile homes in manufactured/mobile home communities that were legally in existence before June 12, 2008, based exclusively on the age or dimensions of the manufactured/mobile home. This does not preclude a city or town from restricting the location of a manufactured/mobile home in manufactured/mobile home communities for any other reason including, but not limited to, failure to comply with fire, safety, or other local ordinances or state laws related to manufactured/mobile homes.

(3) Except as provided under subsection (4) of this section, a city or town may not adopt an ordinance that has the effect, directly or indirectly, of preventing the entry or requiring the removal of a recreational vehicle or tiny house with wheels as defined in section 6 of this act used as a primary residence in manufactured/mobile home communities.

(4) Subsection (3) of this section does not apply to any local ordinance or state law that:

(a) Imposes fire, safety, or other regulations related to recreational vehicles;

(b) Requires utility hookups in manufactured/mobile home communities to meet state or federal building code standards for manufactured/mobile home communities; or

(i) A recreational vehicle or tiny house with wheels as defined in section 6 of this act must contain at least one internal toilet and at least one internal shower; and

(ii) If the requirement in (c)(i) of this subsection is not met, a manufactured/mobile home community must provide toilets and showers.

(5) For the purposes of this section, "manufactured/mobile home community" has the same meaning as in RCW 59.20.030.

(6) This section does not override any legally recorded covenants or deed restrictions of record.

(7) This section does not affect the authority granted under chapter 43.22 RCW.

Sec. 4. RCW 19.27.031 and 2018 c 189 s 1 are each amended to read as follows:

Except as otherwise provided in this chapter, there shall be in effect in all counties and cities the state building code which shall consist of the following codes which are hereby adopted by reference:

(1)(a) The International Building Code, published by the International Code Council, Inc.;

(b) The International Residential Code, published by the International Code Council, Inc. including Appendix Q of the 2018 International Residential Code;

(2) The International Mechanical Code, published by the International Code Council, Inc., except that the standards for liquefied petroleum gas installations shall be NFPA 58 (Storage and Handling of Liquefied Petroleum Gases) and ANSI Z223.1/NFPA 54 (National Fuel Gas Code);

(3) The International Fire Code, published by the International Code Council, Inc., including those standards of the National Fire Protection Association specifically referenced in the International Fire Code: PROVIDED, That, notwithstanding any wording in this code, participants in religious ceremonies shall not be precluded from carrying handheld candles;

(4) Portions of the International Wildland Urban Interface Code, published by the International Code Council Inc., as set forth in RCW 19.27.560;

(5) Except as provided in RCW 19.27.170, the Uniform Plumbing Code and Uniform Plumbing Code Standards, published by the International Association of Plumbing and Mechanical Officials: PROVIDED, That any provisions of such code affecting sewers or fuel gas piping are not adopted;

(6) The rules adopted by the council establishing standards for making buildings and facilities accessible to and usable by individuals with disabilities or elderly persons as provided in RCW 70.92.100 through 70.92.160; and

(7) The state's climate zones for building purposes are designated in RCW 19.27A.020(3) and may not be changed through the adoption of a model code or rule.

In case of conflict among the codes enumerated in subsections (1), (2), (3), (4), and (5) of this section, the first named code shall govern over those following.

The codes enumerated in this section shall be adopted by the council as provided in RCW 19.27.074. The council shall solicit input from first responders to ensure that firefighter safety issues are addressed during the code adoption process.

The council may issue opinions relating to the codes at the request of a local official charged with the duty to enforce the enumerated codes.

Sec. 5. RCW 43.22.450 and 2001 c 335 s 8 are each amended to read as follows:

Whenever used in RCW 43.22.450 through 43.22.490:

(1) "Department" means the Washington state department of labor and industries;

(2) "Approved" means approved by the department;

(3) "Factory built housing" means any structure, including a factory built tiny house with or without a chassis (wheels), designed primarily for human occupancy other than a manufactured or mobile home the structure or any room of which is either entirely or substantially prefabricated or assembled at a place other than a building site;

(4) "Install" means the assembly of factory built housing or factory built commercial structures at a building site;

(5) "Building site" means any tract, parcel or subdivision of land upon which factory built housing or a factory built commercial structure is installed or is to be installed;

(6) "Local enforcement agency" means any agency of the governing body of any city or county which enforces laws or ordinances governing the construction of buildings;

(7) "Commercial structure" means a structure designed or used for human habitation, or human occupancy for industrial, educational, assembly, professional or commercial purposes.

NEW SECTION. Sec. 6. A new section is added to chapter 35.21 RCW to read as follows:

(1) A city or town may adopt an ordinance to regulate the creation of tiny house communities.

(2) The owner of the land upon which the community is built shall make reasonable accommodation for utility hookups for the provision of water, power, and sewerage services and comply with all other duties in chapter 59.20 RCW.

(3) Tenants of tiny house communities are entitled to all rights and subject to all duties and penalties required under chapter 59.20 RCW.

(4) For purposes of this section:

(a) "Tiny house" and "tiny house with wheels" means a dwelling to be used as permanent housing with permanent provisions for living, sleeping, eating, cooking, and sanitation built in accordance with the 2018 International Resident Code Appendix Q.

(b) "Tiny house communities" means real property rented or held out for rent to others for the placement of tiny houses with wheels or tiny houses utilizing the binding site plan process in RCW 58.17.035."