Subletting Clause
in Your Lease
What it actually means, what Washington law says, what's specific to Seattle - and exactly what to do. In plain English.
Quick Summary - What You Need to Know
- None of the 98 section titles in RCW 59.18 names subletting, subleasing or assignment.
- Your written lease decides whether you need consent and whether a refusal must be reasonable.
- No section we read in Washington or Seattle law sets a deadline to answer a sublet request.
- Seattle lets you add immediate family plus one non-family roommate, with written notice within 30 days.
- That roommate ordinance covers adding people to your tenancy, not true subletting.
Understanding the Subletting Clause
This page is for Seattle renters who want to sublet, or who are about to sign a lease with a subletting clause. In Washington, that clause is the paragraph to read before you promise anyone your room.
Check whether consent is required, whether a refusal must be reasonable, what a sublet costs, and whether the landlord must answer by a set date. Seattle's roommate rules help when you add people to your home, but they do not cover handing your unit to a subtenant.
What renters assume
Washington has a subletting law that makes a landlord answer quickly and approve a qualified replacement.
What is actually true
Our record of Washington law finds no sublet statute and no reply deadline. Whether your landlord must be reasonable about a refusal depends on your written lease.
Seattle sits at the quiet end of this chart. A New York City tenant gets an answer in 30 days, Chicago bars any extra sublet fee, and Texas bans subletting without consent outright, while Washington says nothing either way.
Sublet Clause Example - What the Wording Looks Like in Seattle, WA
The sample clause below is real lease language - a court quoted it word for word, and then ruled on it. What the judge decided is at the bottom of this block.
Find the equivalent paragraph in your own lease and read the two side by side. The wording will differ; the moving parts rarely do.
Occupancy of Premises — Tenant shall not assign nor underlet any part or the whole of the premises, nor shall permit the premises to be occupied for a period longer than a temporary visit by anyone except the individuals specifically named in the first paragraph of this tenancy, their spouses, and any children born to them hereafter, without first obtaining on each occasion the assent in writing of Landlord.
Quoted from the published opinion in Slavin v. Rent Control Board of Brookline, 406 Mass. 458, 548 N.E.2d 1226 (1990). Judicial opinions are not subject to copyright; the lease language is reproduced in limited part for commentary under 17 U.S.C. § 107.
What the 4 highlighted phrases mean
“Occupancy of Premises”
The heading is the right one for Seattle, because the city's rule is about occupancy rather than subletting. RCW ch. 59.18 contains no provision granting, restricting or timing a residential sublet, so whether you may hand the unit to a subtenant depends entirely on the written rental agreement. What the city regulates is the other thing this heading covers: who may join the household you already have.
See the example
“for a period longer than a temporary visit”
Seattle puts numbers where this clause puts a vague phrase. A tenant who adds a household member must notify the landlord in writing within 30 days. And a non-family roommate who is told to join the lease has 30 days to do so, or must vacate within 45 days - a defined way in and a defined way out, instead of an argument about how long a visit is.
See the example
“their spouses”
Seattle reaches further than the word spouses does. Immediate family members may be screened but cannot be denied occupancy, and one non-family roommate may also be added, and may be screened. So the named list plus spouses is not the closed set this wording suggests - though the protection runs to added occupants, not to a subtenant taking the unit over.
See the example
“the assent in writing of Landlord”
In Seattle the writing that matters most may be yours rather than the landlord's. Adding a household member calls for a written notice from the tenant within 30 days - a notice, not a request - which is a different act from asking for the assent this clause demands. For a true sublet you are back on the lease, because no Washington or Seattle rule gives a landlord a set number of days to answer a sublet request.
See the example
The landlord did not have to be reasonable, and the tenant lost. The Supreme Judicial Court read this clause and refused to add anything to it: a residential lease requiring the landlord's written assent before an assignment, an underletting or an additional occupant carries no implied duty to act reasonably. Absent express lease language - or a statute - saying consent will not be unreasonably withheld, the landlord may refuse arbitrarily, so a blanket refusal to accept any replacement occupant did not excuse the tenant's breach. The annulment of the rent board's decision was affirmed and the certificate of eviction ordered to issue. The court knew it was declining a trend: it found no demonstrable trend involving residential leases, reasoned that in a rent-controlled town a landlord has little economic incentive to withhold consent, warned that the opposite rule would generate a plethora of litigation, and handed the question to the Legislature - noting in a footnote that four states had already legislated, New York's Real Property Law § 226-b among them. Two limits belong with the holding. The disposition was not a clean sweep: the court reversed the Appellate Division's award of double costs and attorneys' fees even as it affirmed the annulment. And the closing footnote says the court makes no suggestion about the rule it might adopt in other contexts - this is a rule about residential leases and nothing wider.
How this state's law treats this clause
One court, one lease, one state. That answer is not automatically yours, and your lease may be worded to land differently. Use this to know what to look for and what to ask - your state's tenant hotline or a local tenant attorney can answer it for your document.
Washington Law on Subletting Clause
- RCW ch. 59.18 contains no provision granting, restricting, or timing a residential sublet.
- Whether a Washington tenant may sublet, and whether the landlord must be reasonable, depends entirely on the written rental agreement.
- Seattle's ordinance covers adding occupants to an existing tenancy rather than true subletting, and bars raising housing costs for added household members absent a lease term allowing it.
- No Washington or Seattle rule gives a landlord a set number of days to answer a sublet request.
Verify the current text in your state's landlord-tenant statutes.
Copy and send: Before anyone moves in, once you have read your lease's subletting clause
Ask to sublet
Fill in the brackets and keep a copy of what you send.
Washington's Residential Landlord-Tenant Act is RCW ch. 59.18. Here is what we found on subletting:
- No sublet section. None of the act's 98 section titles names subletting, subleasing or assignment. No section we read in the chapter grants, restricts or times a residential sublet.
- The lease decides. Whether you may sublet, and whether your landlord must be reasonable about it, depends on your written rental agreement.
- No reply clock. No section we read gives a landlord a set number of days to answer a sublet request.
That makes the wording you sign the part to negotiate. Ask for changes to a sole-discretion clause, a full sublet ban or an open-ended fee before you sign, not after.
State rules change, so check the current text of RCW 59.18 before you rely on this page.
What's Specific to Seattle
How Washington compares
Landlord's deadline to answer a written sublet request, state by state
30 daysNo figureGuide coming soonYou are here
See all 25 cities as a chart
Figures are the state rule, or the stronger city ordinance where one exists. Verify the current law for your own situation before relying on it.
Seattle adds a related right. Its roommate ordinance lets you add immediate family members, who may be screened but cannot be denied occupancy, plus one non-family roommate, who may be screened.
You must notify the landlord in writing within 30 days. If that roommate is told to join the lease, they have 30 days to do so or must move out within 45 days.
The ordinance covers adding occupants to your tenancy rather than true subletting. Check the city's current rules before you rely on it.
No section we read sets a reply deadline. A written answer by a stated date is a term to ask for.
Whether a refusal must be reasonable depends on your written lease. Ask for this promise before you sign.
Raise it before you sign. No section we read in Washington law creates a right to sublet that would get around a ban.
No section we read caps a sublet fee. Ask for a fixed dollar amount written into the lease.
Red Flags to Watch Out For
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Consent at the landlord's sole discretion
No section we read says a refusal must be reasonable. With this wording, your lease alone sets the standard, so ask to change it before you sign.
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A request with no reply date
The clause requires written approval but never says when you will hear back. Your replacement may find another place while you wait.
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Moving someone in without written consent
If your lease requires consent, moving a subtenant in without it breaches the lease you signed. Hold the keys until consent is in writing.
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Extra charges for added household members
Seattle bars raising your housing costs for added household members unless a lease term allows it. Ask to see that term before you pay.
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A roommate clause treated as a sublet ban
Language that lumps added roommates in with subtenants. Seattle's roommate ordinance covers adding occupants to your tenancy, which is a separate question from subletting.
Your Rights as a Seattle Tenant
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Whatever your lease promises
Whether you may sublet, and whether a refusal must be reasonable, depends on your written rental agreement. Get any promise into the lease itself.
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Immediate family in your home
Seattle's roommate ordinance lets you add immediate family members. They may be screened, but they cannot be denied occupancy.
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One non-family roommate
You may also add one non-family roommate, who may be screened. Notify the landlord in writing within 30 days.
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Time to join the lease
A non-family roommate told to join the lease has 30 days to do so, or must move out within 45 days.
What To Do - Step by Step
Read your sublet clause
Check whether consent is required, whether subletting is banned, what it costs and whether a reply date appears.
Decide: sublet or roommate
Adding someone to your household falls under Seattle's roommate ordinance. Handing the unit to a subtenant falls under your lease.
Ask in writing
Email the property manager with the subtenant's name, the dates and the rent. Email gives you a dated copy.
Set your own follow-up date
No section we read requires an answer by any date. Put a date in your first message and follow up in the same thread.
Wait for consent in writing
No move-in on a verbal yes. Ask for the consent, the term dates and any fee in one email.
Get help early
Contact the Tenants Union of Washington State or the city's Renting in Seattle helpline the day a denial or notice lands.
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Frequently Asked Questions
Subletting rules near Washington
The same clause in the nearest states we cover.
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