2SHB 1443

Local governments lose authority to inspect mobile dwellings themselves, only inspecting utility hookups — potentially reducing enforcement capacity for habitability, fire, or safety issues tied to the dwelling unit itself, increasing long-term public health risks.

Cities and counties must update zoning and infrastructure assessments to comply with the mandate, which may strain limited planning and inspection resources, especially in smaller jurisdictions without dedicated urban growth area staff.

The 2028 sunset on association bans creates regulatory uncertainty: associations may delay or resist compliance until 2027–2028, and local governments may face a sudden surge in enforcement demands just before expiration.

Homes on wheels without plumbing must rely on shared facilities in the main dwelling, which may be impractical or unacceptable for long-term residents (e.g., elderly, disabled, or families), limiting actual usability of the housing option.

The bill allows local governments to exclude lots where utilities “cannot be adequately served,” but does not require them to proactively expand infrastructure — meaning many eligible lots may be excluded de facto, limiting real-world access.

Sewer connections via cleanout from an existing unit’s line may bypass modern treatment standards (e.g., no backflow prevention requirements specified), potentially risking groundwater contamination or overloading aging sewer lines in older neighborhoods.

Mandating only a 20-amp GFCI circuit may be insufficient for modern RV electrical loads (e.g., AC units, space heaters), increasing risk of overloads or fire if occupants use high-draw appliances without proper education or oversight.

The definition of “home on wheels” excludes park models, tiny homes on permanent foundations, or prefabricated structures not designed for travel — limiting the policy’s applicability to many people seeking affordable housing alternatives.

Homeowners' and property associations may incur legal and administrative costs to revise governing documents before 2028, especially if challenged by members or residents — costs likely borne by HOA boards (often volunteer homeowners), not professional management firms.

Requiring potable water connections via existing hose bibs or yard hydrants may be infeasible if those fixtures are outdated, corroded, or lack sufficient pressure — disproportionately affecting low-income neighborhoods with aging infrastructure.

The exclusion of lots where utilities “cannot be adequately served” may disproportionately affect rural-adjacent urban growth area zones where infrastructure is marginal, reducing access for lower-income residents who rely on such areas for affordability.

Shared facilities requirement may create hygiene and sanitation challenges if multiple households share limited bathroom/kitchen space, increasing risk of conflict, disease transmission, or code violations — especially in multi-generational or high-density setups.

The requirement that the lot “already has at least one housing unit” excludes vacant or subdivided lots, limiting the policy’s utility for people seeking to build a new secondary unit (e.g., ADU replacement) or for first-time homebuyers in tight markets.

Sewer connections via cleanout may not meet plumbing code standards for venting or slope, potentially leading to backups or odors — but local governments are barred from inspecting the dwelling itself, limiting enforcement of health standards.

Use of flexible potable water hoses may pose risks of bursting or contamination if not maintained, especially in freeze-prone areas — yet no maintenance or replacement schedule is mandated, leaving occupants vulnerable to failures.