Seattle’s rental laws layer city ordinances on top of Washington state’s Residential Landlord-Tenant Act, giving renters in the city some of the strongest protections in the country. Landlords must register every unit, follow strict screening rules, cap move-in costs at one month’s rent, give 180 days’ notice before raising rent, and cite one of 16 approved reasons to end a tenancy. Tenants get seasonal eviction defenses, installment plans for deposits, and relocation payments when they are displaced through no fault of their own.
Every Rental Unit Must Be Registered
Under Seattle Municipal Code Chapter 22.214, every residential rental unit in the city must be registered with the Seattle Department of Construction and Inspections through the Rental Registration and Inspection Ordinance.1Seattle Department of Construction and Inspections. Rental Registration and Inspection Code Single-family houses, ADUs, and large apartment buildings all fall under the rule. Registrations expire every two years.
Registration matters for one reason above all others: a landlord who is out of compliance with RRIO cannot use the Just Cause Eviction Ordinance to end a tenancy.2Seattle Department of Construction and Inspections. Just Cause Eviction Ordinance An unregistered landlord effectively has no legal way to remove a tenant. Registered properties are also selected for a health-and-safety inspection at least once every five to ten years, and inspectors verify heat, ventilation, electrical, structural, and fire-safety standards.3Seattle Department of Construction and Inspections. Rental Registration and Inspection Ordinance – Owners and Managers Tenants must receive at least two days’ written notice before an inspector enters.4Seattle Department of Construction and Inspections. Rental Registration and Inspection Ordinance – Renters
Screening Rules Landlords Must Follow
Seattle limits what landlords can consider when picking tenants. The Fair Chance Housing Ordinance in SMC 14.09 generally bars landlords from taking adverse action based on arrest records, conviction records, or criminal history.5City of Seattle. Fair Chance Housing Ordinance FAQ Running a background check is still allowed; using the results to deny housing is not, with narrow exceptions. Sex offender registry information can be considered if the landlord shows a legitimate business reason tied to safety or property, and federally assisted housing may follow federal screening mandates that override the local rule. Owner-occupied single-family homes and ADUs where the owner lives on site are exempt.
The Open Housing Ordinance under SMC 14.08 also prohibits source-of-income discrimination. A landlord cannot reject an applicant because they plan to pay rent with Section 8 vouchers, Social Security, or other lawful income.6City of Seattle. Source of Income Protection
The same chapter created a “First-in-Time” rule requiring landlords to process applications in the order received and offer the unit to the first qualified applicant.7City of Seattle. First in Time A King County Superior Court judge ruled the requirement violates the state constitution, finding that selecting a tenant is a fundamental attribute of property ownership. The city’s website still describes First-in-Time as current policy, so its enforcement status is uncertain. Anyone relying on the rule should check with the Seattle Office for Civil Rights first.
Move-In Costs and Security Deposits
Seattle caps up-front charges. Under SMC 7.24, the security deposit and any non-refundable move-in fees combined cannot exceed one month’s rent.8City of Seattle. Move-In Charges Last month’s rent is separate and does not count toward the cap.
Tenants also have a right to pay these costs over time. For leases of six months or longer, a tenant can choose to pay the deposit, move-in fees, and last month’s rent in six equal monthly installments starting at the beginning of the tenancy. For shorter leases between 60 days and six months, last month’s rent can be split into up to four equal installments.9Seattle City Council. Council Bill 118756 These rights exist regardless of what the lease says.
Getting the Deposit Back
After move-out, the landlord has 30 days to return the full deposit or send a written statement explaining any deductions, with the documentation state law requires.10City of Seattle. Deposit Returns Two things trigger an automatic full refund: the landlord and tenant never signed a move-in checklist, or the landlord misses the 30-day deadline. A landlord who skips the checklist at move-in loses the ability to deduct anything for damages later.
Rent Increases and Late Fees
Seattle requires at least 180 days’ written notice before any increase in rent or other recurring housing cost.11City of Seattle. Housing Cost Increases That six-month lead is among the longest in the country. Rent cannot be raised during a fixed-term lease unless the lease itself allows it.
Washington state law now also caps the size of increases. Under RCW 59.18.700, landlords cannot raise rent at all during the first 12 months of a tenancy. After that, annual increases are limited to 7 percent plus the Consumer Price Index, or 10 percent, whichever is less.12Washington State Department of Commerce. HB 1217 Landlord Resource Center Certain property types are exempt, but the cap applies to most Seattle rentals.
Late fees are capped at $10 per month under SMC 7.24.034.13City of Seattle. Ordinance 126803 No other charges for late rent are allowed, including fees for serving notices required by state law, and the fee cannot compound. A lease clause setting a higher late fee is unenforceable on that point.
Repair Timelines
The Seattle Housing and Building Maintenance Code under SMC 22.200 sets minimum standards for structural integrity, heat, ventilation, electrical systems, fire safety, and building security.14Seattle Department of Construction and Inspections. Housing and Building Maintenance When something breaks, the deadline for the landlord to begin work depends on severity:
- Emergencies such as loss of heat, running water, or electricity: within 24 hours.
- Major issues that do not rise to emergency level, such as a broken refrigerator or significant plumbing problem: within 72 hours.
- All other repairs: within 10 days of written notice.
Written notice is what starts the clock. A verbal complaint has no enforceable timeline. Put requests in writing, date them, and keep a copy. If the landlord misses a deadline, the tenant can request a city inspection through SDCI or pursue remedies in court.
Just Cause Is Required to End a Tenancy
Under SMC 22.206.160, a landlord cannot end a tenancy without one of 16 approved reasons.15City of Seattle. Just Cause Eviction Ordinance The rule covers month-to-month tenants, tenants with verbal agreements, and tenants whose fixed-term leases are expiring. A landlord cannot simply decline to renew.
The most common just causes and their notice periods:
- Nonpayment of rent, after a 14-day notice to pay or vacate that the tenant fails to satisfy.
- Lease violations, after a 10-day notice to comply that the tenant fails to satisfy.
- Habitual late rent, meaning four or more written late-rent notices in a 12-month period.16Municipal Code. Seattle Municipal Code 22.206.170
- Owner or immediate family move-in as a primary residence, with 90 days’ notice.
- Sale of a single-family home, with at least 90 days’ written notice before vacating.
- Demolition, change of use, or substantial rehabilitation, which also requires a tenant relocation license and at least one construction permit before any tenancy can end.
- Criminal activity, waste, or nuisance, with a 3-day notice to vacate.
The notice must identify the specific just cause and the facts supporting it. If a landlord skips a required step or cites a reason that does not hold up, the eviction can be dismissed. Tenants can always challenge the validity of the stated cause in court.
Winter and School-Year Eviction Defenses
Two seasonal defenses can block no-fault evictions outright. From December 1 through March 1, households at or below 80 percent of area median income have a defense against most no-fault evictions.17City of Seattle. Defenses to Eviction From September through June, households with children in school (from daycare through high school) and tenants employed by schools have a similar defense during the academic year.
Neither defense is absolute. Evictions for criminal activity, waste, or an imminent hazard can still proceed, and owner move-in or single-family sale evictions with proper 90-day notice are exempt from the winter defense.
Relocation Assistance for Displaced Tenants
When a landlord displaces tenants for demolition, substantial rehabilitation, change of use, or removal of rent restrictions, the Tenant Relocation Assistance Ordinance under SMC 22.210 applies. The landlord must obtain a relocation license before ending any tenancy, and the licensing process takes about six months.18Seattle Department of Construction and Inspections. Tenant Relocation Assistance Ordinance
Low-income tenant households receive $5,354 in relocation assistance, split evenly between the owner and the City of Seattle. When displacement follows an emergency order caused by conditions within the landlord’s control, low-income tenants receive $6,353 and non-low-income tenants receive two months’ rent.19City of Seattle. Tenant Relocation Condominium conversions require the owner to pay low-income tenants three months’ rent. After the license is issued, the owner delivers relocation packets within 30 days, tenants have 30 days to apply, the owner pays their share within five business days, and only then can a 90-day notice of development activity go out. Violations can cost up to $1,000 per day.
Federal Rules That Also Apply
Several federal requirements sit on top of Seattle’s rules. For units built before 1978, federal law requires landlords to disclose known lead-based paint or hazards, provide the EPA pamphlet “Protect Your Family From Lead In Your Home,” share any lead inspection reports, and attach a lead warning to the lease.20Office of the Law Revision Counsel. 42 USC 4852d21US EPA. Real Estate Disclosures About Potential Lead Hazards Signed disclosures must be kept for three years. Post-1977 housing, short-term rentals of 100 days or less, and senior or disability housing where no child under six lives or is expected to live are exempt.
The Servicemembers Civil Relief Act overrides conflicting local and lease provisions. Under 50 U.S.C. 3951, a landlord cannot evict a servicemember or their dependents from a primary residence during active duty without a court order, as long as monthly rent falls below a statutory threshold that adjusts annually (originally $2,400 in 2003 dollars).22Office of the Law Revision Counsel. 50 USC 3951 If military service materially affects the ability to pay rent, the court must grant a stay of at least 90 days. Servicemembers who receive orders for a permanent change of station or deployment of 90 days or more can terminate the lease by delivering written notice with a copy of the orders; the lease ends 30 days after the next rent due date, with no early termination fee.
The CARES Act requires landlords of “covered properties,” meaning those with federally backed mortgage loans or participation in certain federal housing programs, to give tenants at least 30 days’ notice before requiring them to vacate for any reason.23Office of the Law Revision Counsel. 15 USC 9058 The requirement has no expiration date and runs alongside Seattle’s notice rules; the longer period controls.