Seattle landlord-tenant laws add a thick layer of city rules on top of the Washington Residential Landlord-Tenant Act, and the gaps between the two are where most expensive mistakes happen. The Seattle Municipal Code requires 180 days’ written notice before any rent increase, caps late fees at $10 per month, limits move-in costs to one month’s rent, forces landlords to pay relocation money in several displacement scenarios, and bars evictions unless the landlord can prove one of 16 approved reasons. Everything below walks through those rules in the order they tend to come up, from signing a lease to ending one.
Rent Increases and Late Fees
A Seattle landlord must give at least 180 days’ written notice before raising the rent. That is three times the 60 days Washington state law requires on its own, and it gives a tenant roughly six months to budget or plan a move. No increase is allowed during the first year of a month-to-month tenancy, and verbal notice does not count.1Seattle Department of Construction & Inspections. Rental Agreement Regulation
Late fees are capped at $10 per month, no matter what the rent is. A $3,000 unit and a $1,200 unit share the same ceiling, and any higher late fee written into a lease is unenforceable.1Seattle Department of Construction & Inspections. Rental Agreement Regulation
Security Deposits and Move-in Costs
Seattle caps the combined total of the security deposit and any non-refundable move-in fees at one month’s rent. If the landlord charges the maximum, the tenant has the right to pay in installments. A lease of six months or longer can be spread over six equal monthly payments, and shorter leases get a proportional schedule.1Seattle Department of Construction & Inspections. Rental Agreement Regulation
Before collecting a deposit, the landlord has to give the tenant a written move-in checklist describing the condition of walls, flooring, furniture, and appliances. Both sides sign and date it, and the tenant gets a copy. This one is Washington state law under RCW 59.18.260, not just a city rule, and the penalty is harsh: a landlord who takes a deposit without providing the checklist is liable to the tenant for the full deposit amount plus attorney’s fees.2Washington State Legislature. RCW 59.18.260
Getting the Deposit Back
After move-out, the landlord has 30 days to either return the full deposit or send a written, itemized statement of every deduction with any balance owed. Miss the 30 days and the landlord forfeits any right to keep part of the deposit. A court can award up to double the deposit if the failure was intentional, and the tenant also recovers attorney’s fees and court costs.3Washington State Legislature. RCW 59.18.280
Repair Timelines
State law sets specific deadlines for a landlord to begin repairs after receiving written notice from the tenant. The clock starts when the landlord gets the notice, and a busy schedule or a hard-to-find contractor does not extend it. These timelines apply to every Seattle rental.
- 24 hours for loss of heat, hot or cold water, electricity, or any condition that poses an immediate danger to life.
- 72 hours for failure of a major appliance like a refrigerator or stove, or a major plumbing fixture like a toilet or shower.
- 10 days for other non-emergency repairs such as broken locks, minor leaks, or damaged walls.
Seattle’s Housing and Building Maintenance Code at SMC 22.206 adds habitability standards, including a minimum indoor temperature of 65°F in habitable rooms and hot water that reaches at least 100°F within about two minutes of turning on the tap. The Seattle Department of Construction and Inspections enforces these standards, and landlords also have to keep their property registered under the Rental Registration and Inspection Ordinance at SMC 22.214.
Just Cause Eviction
Seattle’s Just Cause Eviction Ordinance at SMC 22.205 bars a landlord from ending a tenancy without proving one of 16 specific reasons. It covers month-to-month renters, tenants on verbal agreements, and tenants whose written leases are expiring. Even at the natural end of a lease term, the landlord has to cite one of the approved grounds to decline renewal.4Seattle Department of Construction & Inspections. Just Cause Eviction Ordinance That is the sharpest break from how evictions work in many other cities, where a landlord can simply let a lease run out.
The most commonly used grounds are:
- Nonpayment of rent after the landlord serves a pay-or-vacate notice using the form state law requires.
- Lease violations after the landlord serves a comply-or-vacate notice.
- Owner move-in, where the owner or an immediate family member intends to occupy the unit as their primary residence, with 90 days’ written notice.
- Sale of a single-family home, with 90 days’ written notice before the sale.
- Demolition, substantial rehabilitation, or change of use, but only after the landlord completes the city’s Tenant Relocation Assistance licensing process.
- Criminal activity, waste, or nuisance that threatens health or safety.4Seattle Department of Construction & Inspections. Just Cause Eviction Ordinance
The burden sits entirely on the landlord. A tenant does not have to prove they did nothing wrong, and a landlord who cannot prove just cause in court loses the case. Landlords also have to be current on their RRIO registration to proceed; falling behind on that separate requirement can derail the whole process.
Winter Eviction Defense
Between December 1 and March 1, lower-income tenants get an extra layer of protection. Households earning 80% or less of the area median income can raise the winter defense to block most evictions during those months. It does not cover every situation. Landlords can still proceed for criminal activity, waste, imminent hazard, owner move-in, sale of a single-family home, or when the city orders a unit taken offline. For nonpayment by a qualifying household, though, the defense can push the case out until March.5City of Seattle. Defenses to Eviction Landlords with fewer than four properties are exempt.
Relocation Payments Landlords Owe
This is the rule landlords most often miss. When Seattle forces a tenant to move for certain reasons, the landlord has to pay them, and the amounts are not small.
- Demolition or major renovation: low-income tenant households receive $5,354, split equally between the landlord and the city.
- Condominium conversion: the landlord pays low-income tenants relocation assistance equal to three months’ rent.
- Illegal or unpermitted unit: low-income tenants receive $2,000, and tenants who are not low-income receive two months’ rent.
- Emergency vacate order caused by the landlord: low-income tenants receive $6,353, and other tenants receive two months’ rent.6Seattle Department of Construction & Inspections. Tenant Relocation
A separate program, Economic Displacement Relocation Assistance, kicks in whenever a rent increase totals 10% or more within any 12-month period. The landlord has to attach an EDRA notice to the increase. Tenant households earning 80% or less of area median income who then choose to vacate can apply for assistance equal to three times their current monthly housing cost. The city pays the tenant up front and bills the landlord for reimbursement.7City of Seattle. Economic Displacement Relocation Assistance On a $2,500 unit, that is more than $7,500 per displaced household. Leaving the EDRA notice off a qualifying increase does not erase the obligation; it just adds liability on top of it.
Tenant Screening Rules
Seattle regulates how landlords pick tenants more heavily than almost any other city. Under the first-in-time rule at SMC 14.08.050, a landlord has to publish screening criteria before taking applications and then offer the unit to the first applicant who meets them. Skipping over a qualified applicant for a subjective preference is prohibited, and the Seattle Office of Civil Rights enforces the rule.8City of Seattle. Tenant Screening Rules (First-in-Time)
The city also bans source-of-income discrimination under SMC 14.08. A landlord cannot refuse an applicant because they plan to pay with a Housing Choice Voucher (Section 8), Social Security, veterans’ benefits, or any other lawful income source. Turning down a voucher holder because of the paperwork involved with the housing authority is itself illegal.9City of Seattle. Source of Income Protections
Federal law adds more. The Fair Credit Reporting Act requires written permission before a landlord runs a credit or background check. If the landlord denies the application, charges a bigger deposit, or sets a higher rent based on anything in that report, they have to send the applicant an adverse action notice identifying the screening company, stating that the company did not make the decision, and explaining the applicant’s right to dispute inaccuracies and request a free copy of the report within 60 days.10Federal Trade Commission. Using Consumer Reports: What Landlords Need to Know
Assistance Animals
The federal Fair Housing Act requires reasonable accommodations for tenants with disabilities, including assistance animals in no-pet buildings. The rule covers both trained service animals and emotional support animals, and the landlord cannot charge a pet deposit or pet fee for one. A denial is allowed only if the specific animal poses a direct safety threat or would cause significant property damage that no other accommodation could prevent. When the disability and the need for the animal are not obvious, the landlord can ask for supporting documentation from a healthcare provider but cannot demand diagnosis details.11U.S. Department of Housing and Urban Development (HUD). Assistance Animals
Required Disclosures at the Lease
Every residential rental in Seattle falls under SMC Chapter 7.24. The landlord has to give the tenant a copy of the city’s Renter’s Handbook at four moments: when the renter applies, when they sign the lease, annually for month-to-month tenants, and whenever the city updates the handbook.1Seattle Department of Construction & Inspections. Rental Agreement Regulation Missing a single handoff can cause enforcement problems later.
The lease itself must be in writing and name the landlord with a contact address. Washington state law voids certain lease provisions outright: anything that waives a tenant’s legal rights or remedies, requires the tenant to pay attorney’s fees not authorized by law, or creates a lien against the tenant’s property is unenforceable even after the tenant signs.
Federal lead paint rules add another step for older buildings. If the unit was built before 1978, the landlord has to give the tenant an EPA pamphlet about lead hazards, disclose any known lead paint, and hand over all available records from past inspections. Both parties sign a lead warning statement before the lease takes effect, and the landlord keeps that signed form for at least three years.12U.S. Environmental Protection Agency. Real Estate Disclosures about Potential Lead Hazards A large share of Seattle’s housing stock predates 1978, so this one catches most older rentals in the city.