Is my landlord allowed to rent out the basement if it doesn't have a separate entrance?

Most cities require basement apartments to have their own exit for safety, especially for bedrooms. Contact your city’s building department for specifics.

What should I do if I find mold or leaks in my basement apartment?

Notify your landlord in writing as soon as possible. If there’s no response, contact your local code enforcement or housing department for inspection.

Can my landlord raise the rent with little notice in a basement unit?

No. In Washington, a landlord must give you at least 60 days’ written notice before increasing rent, no matter the unit type.

Who do I contact if my landlord is threatening eviction without notice?

Always get any notice in writing. If you receive a summons, respond quickly in your local court. For help, contact the Washington Attorney General’s Office or free legal aid.

Am I covered by the Landlord-Tenant Act as a basement apartment renter?

Yes. The Residential Landlord-Tenant Act applies to all standard rentals, including basement apartments.

Washington Basement Apartment Renting: Legal Guide & Tenant Rights

Special Housing Types & Situations Washington published June 21, 2025

Thinking about renting a basement apartment in Washington State or already living in one? Basement units offer unique benefits like extra privacy and affordability, but there are special laws and codes that apply. Whether you’re dealing with health and safety, maintenance, eviction, or lease changes, understanding your rights as a basement apartment tenant is essential. This guide breaks down Washington's key laws, explains official forms, and gives you practical steps to protect your tenancy.

What Makes a Basement Apartment Legal in Washington?

For a basement unit to be legally rented in Washington, it must comply with state and local housing codes. These codes set minimum standards for health, safety, ventilation, and access:

Private entrance: Basements often require a separate or clearly identified entry/exit for fire safety.
Windows and egress: Each sleeping room in the basement must have an emergency escape window or door. Check local building codes for exact size requirements, such as in Seattle Building Code.
Basement permits: Converting a basement into a rental often requires permits and inspections from local authorities.
Utilities and safety devices: The unit needs working smoke alarms, carbon monoxide detectors, heating, and proper plumbing and electrical systems.

If you have concerns about your basement’s safety or legality, contact your city’s code enforcement office or your local housing department.

Your Rights and Responsibilities as a Basement Apartment Renter

Washington’s statewide Residential Landlord-Tenant Act protects all renters, including those in basement apartments. The law covers issues like rent increases, privacy, repairs, entry notice, and eviction.

Right to Safe Housing: Your landlord must keep the basement unit safe, livable, and compliant with health codes.
Repair Requests: If something’s broken or unsafe, you have the right to request repairs in writing. See the section below on forms for how to do this.
Notice for Rent Increase or Entry: Your landlord generally must give at least 60 days' written notice before raising rent ^[1]. For non-emergency entry, a minimum of 2 days’ notice is required.
Eviction Protection: Evictions must follow specific legal steps, including giving you proper notice. "Self-help" evictions—like changing locks—are illegal.

Living in a basement apartment doesn’t reduce your rights. You are entitled to the same protections as renters in any other type of housing.

Common Issues for Basement Renters

Moisture or Mold: Washington’s climate means basement units can be prone to these issues. Report water leaks or mold to your landlord promptly.
Insufficient Heat or Light: Minimum heating and lighting standards must be met.
Access to Utilities: You cannot be charged separately for utilities unless specified in your lease and installation supports it.

Washington’s Required Forms for Basement Tenants

14-Day Notice to Comply or Vacate (Form): Used by landlords if a tenant violates the lease (for example, keeping an unauthorized pet). Renters can use this form to understand why a landlord may seek eviction.
See Official Form
Tenant Maintenance Request (Sample Letter): Not an official government form, but always submit repair requests in writing and keep a copy.
Example: Sample repair request letters from the Washington Attorney General’s Office.
Notice of Rent Increase: Landlords must provide this form at least 60 days before the higher rent takes effect.
Official notice templates
Summons and Complaint (Unlawful Detainer): Used if a landlord files an eviction lawsuit. If you receive these, you must respond promptly in the court named on the forms.
Find court eviction forms

Each form plays a key role in protecting your rights or responding to landlord action. Always read forms carefully and seek help if unsure.

Tenant Protections and How to Enforce Your Rights

If you feel your basement unit is unsafe, not up to code, or you face retaliation for making complaints, you can take direct action. The main body handling tenant disputes in Washington is the local District or Superior Court in your county.

Basic Steps to Resolve Basement Apartment Issues

Submit a written request to your landlord (e.g., repair, mold removal).
Document all communication and take photos if needed.
If the landlord does not respond, contact your city's housing or code enforcement office.
For serious violations, you may have the right to withhold rent or repair and deduct—but always check current law and follow proper procedure.
If a threat of illegal eviction occurs, do not move out immediately. Seek assistance and, if served, respond to court documents on time.

Keep copies of all documents, photos, and written communication with your landlord. These will help you if your case goes to court or you need to make a formal complaint.

FAQ: Basement Apartment Rental Laws in Washington

Is my landlord allowed to rent out the basement if it doesn't have a separate entrance?
Most cities require basement apartments to have their own exit for safety, especially for bedrooms. Contact your city’s building department for specifics.
What should I do if I find mold or leaks in my basement apartment?
Notify your landlord in writing as soon as possible. If there’s no response, contact your local code enforcement or housing department for inspection.
Can my landlord raise the rent with little notice in a basement unit?
No. In Washington, a landlord must give you at least 60 days’ written notice before increasing rent, no matter the unit type.
Who do I contact if my landlord is threatening eviction without notice?
Always get any notice in writing. If you receive a summons, respond quickly in your local court. For help, contact the Washington Attorney General’s Office or free legal aid (see below).
Am I covered by the Landlord-Tenant Act as a basement apartment renter?
Yes. The Residential Landlord-Tenant Act applies to all standard rentals, including basement apartments.

Key Takeaways for Washington Basement Apartment Renters

All regular tenant protections under Washington law apply to basement apartment renters.
Your landlord must provide a safe, legal, and code-compliant living space—report concerns promptly.
Always use written requests and official forms; know how to contact local authorities.

Understanding these basics helps you stay safe and assert your rights, no matter your situation.

Need Help? Resources for Renters

Washington Attorney General: Landlord-Tenant Resources – Comprehensive guides and sample forms
Washington LawHelp – Free legal information and support for renters
Washington State Courts – Find your local court for legal filings or responses
City of Seattle: Renting in Seattle – Local requirements and tenant protections (for Seattle residents)
Contact your local city or county code enforcement office for specific safety/code complaints