Washington State allows cannabis use on private property for adults 21+, but public consumption remains illegal. If a neighbor’s smoke drifts onto your property, local landlords can enforce no-smoking policies in rental agreements. For privately owned yards, resolving disputes may require mediation or legal action under “private nuisance” claims. Clark County Public Health offers guidance for renters facing secondhand smoke issues.

The legality hinges on property type. Renters can involve landlords if smoke violates building policies, while homeowners must navigate state law balancing private rights. Mediation is encouraged before escalating to courts, where proving harm from smoke exposure is challenging.

In shared communities like HOAs, boards may mediate or enforce rules. Non-smoking area residents can request policy changes from landlords. Legal action remains a last resort due to evidentiary hurdles, but property damage or health impacts could strengthen a case.

Washington’s cannabis regulations prioritize private use but lack clear guidelines on secondhand smoke disputes. Experts stress documenting incidents and exploring community resources before involving law enforcement or attorneys.