Cannabis & Marijuana Rental Rules in Washington 2026
Landlord ban authority, possession and home-grow limits, medical patient housing rules, and federal Section 8 restrictions in Washington.
Washington was one of the first states to legalize recreational cannabis, but legalization did not strip landlords of control over their buildings. Adults 21 and older may possess and consume cannabis under Initiative 502, yet a property owner keeps the authority to prohibit smoking and cultivation on the leased premises. The catch is drafting: a generic "no illegal activity" clause is now weak, because recreational cannabis is legal under state law. To hold up, your lease has to name cannabis directly.
Three questions decide almost every dispute: can you ban it, what forms of use does that ban cover, and does a medical authorization change the answer? Below is how Washington law and the overriding federal baseline resolve each one.
Washington Cannabis Legal Status
Washington is classified as Adult-Use Recreational Legal (effective 2012). The governing statute is RCW § 69.50 (Initiative 502, 2012).
Landlord Authority in Washington
Home cultivation only for medical patients. RCW § 59.18.130(9): landlord may prohibit smoking and vaping. Medical patients protected under RCW § 69.51A.
Washington's cannabis status, in short
Recreational cannabis has been legal in Washington since Initiative 502 passed in 2012. Adults 21 and older may possess up to one ounce of usable flower, 16 ounces of cannabis-infused edibles, seven grams of concentrate, or 72 ounces of liquid product. Medical cannabis is governed separately by Chapter 69.51A RCW.
Two limits matter for rental property. First, consuming cannabis, or even opening the package, in a public place or in view of the general public is a class 3 civil infraction under RCW 69.50.445, with a base fine of $27 before assessments. Second, and unusually for a legal-cannabis state, Washington does not allow recreational home cultivation at all. Only registered medical patients may grow. That single fact resolves most "tenant is growing plants" questions before the lease is even opened.
Can you ban cannabis smoking in the lease?
Yes. A landlord may adopt and enforce a smoke-free or cannabis-free policy for a building, and a clause prohibiting smoking on the premises covers smoked cannabis the same way it covers tobacco. Legalization gave adults the right to consume cannabis; it did not give tenants a right to consume it on someone else's property against the terms of a lease.
The drafting point is critical. Now that recreational use is legal under state law, a generic "no illegal drugs" or "no illegal activity" clause no longer reliably reaches cannabis. Name it. Spell out that cannabis smoking and vaping are prohibited on the premises, and, if that is your intent, that cannabis cultivation is prohibited as well. A clause that says "smoking" without naming cannabis invites the argument that only tobacco was meant.
What a smoking ban does and doesn't cover
A smoking prohibition reaches combustion. It does not automatically reach the other ways cannabis is consumed, edibles, tinctures, capsules, and liquid or vaporized products may fall outside a clause that only says "no smoking." A tenant who eats a cannabis gummy in a smoke-free unit has not violated a smoking ban.
If you want a comprehensive prohibition, say so: distinguish smoked and vaped use (which you can ban for nuisance, odor, and secondhand-smoke reasons) from possession and non-smoked consumption (which you may or may not choose to restrict). Odor complaints, smoke migration between units, and damage from smoke are the enforceable, provable grounds, tie your policy to those. A well-drafted clause typically bans smoking and vaping of any substance, then separately addresses cultivation.
Cultivation: recreational is barred, medical is limited
Because Washington bars recreational home growing outright, any adult-use grow on your property is illegal under state law and gives you clear grounds to act. The nuance is medical. Under RCW 69.51A.210, a qualifying patient or designated provider may grow up to six plants in their domicile and possess up to eight ounces of usable cannabis from those plants. A health care professional may authorize up to 15 plants when medically necessary, but no more than 15 plants may be grown in any single housing unit even if multiple patients live there.
State law permitting a medical patient to grow does not obligate you to allow it in your rental. A no-cultivation lease term is enforceable against tenants, and moisture, mold, electrical load, and odor from an indoor grow are legitimate property concerns to cite. The key is a lease clause that explicitly prohibits cultivation, not an assumption that "no illegal activity" covers it, since medical cultivation is state-legal.
Medical cannabis and the Section 8 / federal conflict
Washington landlords are not required to allow medical cannabis use or cultivation as a reasonable accommodation. Guidance from the Washington State Department of Health and the Washington State Human Rights Commission reflects that a landlord who prohibits cannabis need not carve out an exception for medical users. The reasoning runs to federal law: cannabis is still a Schedule I substance under the federal Controlled Substances Act, and the federal Fair Housing Act does not protect people who currently use illegal drugs. Chapter 69.51A also states plainly, in RCW 69.51A.060(4), that nothing in it requires accommodation of on-site medical use in various settings.
The conflict is sharpest in federally assisted housing. Public housing and Section 8 (Housing Choice Voucher) properties operate under HUD rules that treat cannabis as illegal regardless of state legalization. HUD requires public housing authorities to deny admission to current cannabis users and permits eviction for use on the premises. If you accept vouchers or manage federally subsidized units, a cannabis-tolerant policy is not an option, the federal prohibition controls. Medical authorization does not change that outcome.
Medical Patient Housing Rules in Washington
Under RCW § 69.50 (Initiative 502, 2012), a landlord may not refuse to rent to or evict a registered medical patient solely because of their medical-use status. However, three significant carve-outs apply:
- Federal subsidy override. Anti-discrimination protection does NOT apply to federally subsidized housing, Section 8, public housing, project-based assistance, or any program receiving federal funds. HUD PIH 2014-21 controls.
- Smoking ban still permissible. Most state medical-patient protections still allow landlords to prohibit smoking on the premises. Patients must use edibles, tinctures, or vaporizers in non-smoking settings.
- On-premises consumption limits. Some statutes restrict the protection to off-premises use only, leaving on-premises consumption subject to the lease.
Section 8 / HCV in Washington, The Federal Trap
The practical impact: a tenant holding a Housing Choice Voucher who tests positive for cannabis or self-discloses use during recertification can lose their voucher in Washington, regardless of any state cannabis legalization or medical card status. This is the single most common point of confusion for tenants in adult-use states.
Cannabis Rental Compliance in Major Washington Cities
City-level landlord risk profiles often track cannabis-related lease enforcement. View the eviction-risk and tenant-law profile for the largest Washington rental markets:
Sources & Methodology
- Federal: 21 U.S.C. § 812 (Controlled Substances Act, Schedule I); HUD Public Housing Occupancy Notice PIH 2014-21 (re-issued PIH 2017-13); Sessions Memorandum (Jan 4, 2018).
- Washington cannabis statute: RCW § 69.50 (Initiative 502, 2012).
- Landlord ban authority: Home cultivation only for medical patients. RCW § 59.18.130(9): landlord may prohibit smoking and vaping. Medical patients protected under RCW § 69.51A.
- Medical patient housing protection: Coded "Yes" for Washington based on the cited statute.
Related Guides for Washington Landlords
This guide reflects Washington statutes as of 2026, including Initiative 502, Chapter 69.51A RCW (Medical Cannabis), RCW 69.51A.060, RCW 69.51A.210, and RCW 69.50.445, together with guidance from the Washington State Liquor and Cannabis Board, the Washington State Department of Health, the Washington State Human Rights Commission, and HUD rules for federally assisted housing. Cannabis law sits at a state-federal fault line and enforcement guidance evolves; confirm current statute text and consult a Washington landlord-tenant attorney before drafting or enforcing a cannabis clause in a specific lease.
Frequently Asked Questions
Can a Washington landlord ban cannabis even though it's legal?
Yes. Recreational legalization under Initiative 502 gave adults 21+ the right to use cannabis, but not on someone else's property against the lease. A landlord may adopt and enforce a smoke-free or cannabis-free policy. Name cannabis expressly in the lease, a generic 'no illegal activity' clause is weak now that state law makes recreational use legal.
Does a no-smoking clause cover edibles?
Usually not. A smoking prohibition reaches combustion, smoked and vaped cannabis. Edibles, tinctures, capsules, and liquid products can fall outside a clause that only says 'no smoking.' If you want to restrict non-smoked use too, the lease must address it separately.
Can a tenant grow cannabis in a Washington rental?
Recreational home cultivation is illegal in Washington entirely, there is no adult-use grow allowance. Only registered medical patients may grow: up to six plants (and eight ounces of usable cannabis) under RCW 69.51A.210, or up to 15 if a health care professional authorizes it, capped at 15 plants per housing unit. State law permitting a medical grow does not require you to allow it; an explicit no-cultivation lease clause is enforceable.
Do I have to accommodate a tenant's medical cannabis card?
No. Washington landlords are not required to allow medical cannabis use or cultivation as a reasonable accommodation. Guidance from the Department of Health and the Human Rights Commission reflects this, and RCW 69.51A.060(4) confirms the chapter does not compel on-site accommodation. Federal law, cannabis is still Schedule I, and the Fair Housing Act doesn't protect current illegal-drug users, backs the landlord's position.
What about Section 8 and public housing?
Federal rules control. HUD treats cannabis as illegal regardless of Washington law: public housing authorities must deny admission to current cannabis users and may evict for use on the premises. If you accept vouchers or manage federally subsidized units, you cannot adopt a cannabis-tolerant policy, and a medical card does not create an exception.
Where can a tenant legally consume cannabis, then?
Consuming cannabis or opening a package in a public place or in view of the general public is a class 3 civil infraction under RCW 69.50.445 (base fine $27 before assessments). Combined with an enforceable no-smoking lease clause and no public-consumption right, a tenant's lawful options are narrow, which is exactly why your lease terms carry so much weight.
Federal authority: 21 U.S.C. § 812; HUD PIH 2014-21. State authority: RCW § 69.50 (Initiative 502, 2012). Last updated October 24, 2026. For informational purposes only, not legal advice. Cannabis law is rapidly evolving and federal/state conflict creates significant compliance risk; consult a licensed Washington attorney before making a lease, screening, or eviction decision involving cannabis.