SB 5332 — Concerning mobile dwellings.

S-1114.1S-0636.1 SUBSTITUTE SENATE BILL 5332 State of Washington 69th Legislature 2025 Regular Session By Senate Housing (originally sponsored by Senators Shewmake, J.

Wilson, Bateman, Chapman, Nobles, and Valdez)Valdez READRead FIRSTfirst TIMEtime 02/03/25.01/17/25.

Referred to Committee on Housing.

(1) Any city or county planning under RCW 36.70A.040 must allow at least one mobilehome dwellingon unitwheels on each lot zoned for residential use if the following conditions are met:

and (c) The lot is not a property on which the city or county andhas the utilities have determined that thehousing additionaldevelopment demandcannot will be adequately served by sewerwater, systems;sewer, stormwater, or transportation systems.

and(2) (d) The mobilehome dwellingon unitwheels ismust notbe locatedconnected into aelectrical shorelineservice ofthrough thea statededicated asoutlet definedon ina RCWservice 90.58.030,pedestal or inon criticalthe areasprimary anddwelling, naturalwhich resourcemust landsbe designateda underminimum RCW20-amp, 36.70A.170.ground fault circuit interrupter protected, dedicated circuit.

(2) The mobile dwelling unit must be connected to electrical service through a dedicated outlet on a service pedestal or on the p.

1 SSBSB 5332 primary(3)(a) dwelling,If whicha home on wheels has internal plumbing, it must be aconnected minimumto 20-amp,potable groundwater faultand circuitsanitary interruptersewer protected,services dedicatedas circuit.follows:

(3)(a)(i) IfWater connections may be made through a mobileyard dwellinghydrant unitor hasan internalantisiphon plumbing,hose itbib mustfrom bean connectedexisting home on the lot, with connections from the vehicle to potablethe waterhose andbib sanitarymade sewerwith servicesa asflexible follows:hose rated for potable water;

(i) Water connections may be made through a yard hydrant certified for potable use or an antisiphon hose bib certified for potable use from an existing home on the lot, with connections from the vehicle to the hose bib made with a flexible hose rated for potable water;

(b) If a mobilehome dwellingon unitwheels does not have internal plumbing, the occupants must have access to potable water, toilets, and showers in an existing housing unit on the lotlot. 24 hours a day, seven days a week.

(4) Cities and counties must enforce standard inspection procedures for utility hookups to mobilehomes dwellingon units.wheels.

Cities and counties may not require inspection of the mobilehome dwellingon unitwheels itself.

Cities(5) andFor countiesthe maypurposes inspectof storagethis tankssection, and"home seweron andwheels" sanitarymeans connectionsa ofvehicular-type theunit mobileprimarily dwellingdesigned unitfor torecreational ensurecamping theyor aretravel notuse leakingthat has its own motive power or polluting.is mounted on or towed by another vehicle, including travel trailers, fifth-wheel trailers, folding camping trailers, truck campers, and motor homes.

(5) The mobile dwelling unit must be maintained so that it can be moved at any time.

(6) The mobile dwelling unit must meet the setback requirements of the underlying zone.

(7) For the purposes of this section, "mobile dwelling unit" means a vehicular-type unit primarily designed for recreational camping or travel use that has its own motive power or is mounted on or towed by another vehicle, including travel trailers, fifth-wheel trailers, folding camping trailers, truck campers, tiny houses with wheels as defined in RCW 35.21.686, and motor homes.

(1) On or after the effective date of this section, an association of apartment owners for a property located within a city subject to the requirements in section 1 of this act may not create a restriction, covenant, condition, declaration, bylaw, rule, provision of a governing document, or a master deed provision that actively or p.effectively prohibits at least one home on wheels on each lot zoned for residential use as required in section 1 of this act.

2 SSB 5332 effectively prohibits at least one mobile dwelling unit on each lot zoned for residential use as required in section 1 of this act.

(1) On or after the effective date of this section, an association for a condominium located within a city subject to the requirements in section 1 of this act may not create a restriction, covenant, condition, declaration, bylaw, rule, provision of a governing document, or a master deed provision that actively or effectivelyp. prohibits at least one mobile dwelling unit on each lot zoned for residential use as required in section 1 of this act.

2 SB 5332 effectively prohibits at least one home on wheels on each lot zoned for residential use as required in section 1 of this act.

(1) On or after the effective date of this section, a homeowners' association for property located in a city subject to the requirements in section 1 of this act may not create a restriction, covenant, condition, declaration, bylaw, rule, provision of a governing document, or a master deed provision that actively or effectively prohibits at least one mobilehome dwellingon unitwheels on each lot zoned for residential use as required in section 1 of this act.

On or after the effective date of this section, an association or a declarant for a common interest community located within a city subject to the requirements in section 1 of this act may not create a restriction, covenant, condition, declaration, bylaw, rule, provision of a governing document, or a master deed provision that actively or effectively prohibits at least one mobilehome dwellingon unitwheels on each lot zoned for residential use as required in section 1 of this act.

3 SSBSB 5332