Cosmopolis · Washington
Cosmopolis, WA Landlord Laws 2026
Every housing law that applies to Cosmopolis landlords — security deposits, eviction rules, rent increases, and more. Updated for 2026.
Based on Washington state law.
Cosmopolis Rental Market in 2026
$1,216
median 2BR rent
1,666
population
$2,432
max security deposit
Cosmopolis landlords must comply with Washington state landlord-tenant laws. At a median 2-bedroom rent of $1,216/month, understanding deposit caps, notice periods, and eviction rules can save you thousands in penalties.
Local Housing Market Data
The HUD Fair Market Rent for a 2-bedroom in Cosmopolis is $1,216/month, which affects Section 8 voucher amounts and affordable housing calculations.
Key Takeaways for Cosmopolis Landlords
- Security deposit: Capped at 2 month(s) of rent ($2,432 at median rent). Must return within 21 days or face penalties up to $2,432.
Washington Laws That Apply in Cosmopolis
HB 1217 — Rent Stabilization Act
Wash. Rev. Code §59.18.170 et seq. (as amended)
Statewide rent cap (7% + CPI) and just cause eviction protections. Signed May 2025. New construction exempt for 12 years.
Washington Residential Landlord-Tenant Act
Wash. Rev. Code §59.18.010 et seq.
Comprehensive landlord-tenant law covering security deposits, habitability, eviction, and tenant rights.
Cosmopolis Landlord Law Topics
Click any topic below for detailed Cosmopolis-specific rules, deadlines, penalties, and free compliance tools.
Security Deposit Laws
Cosmopolis-specific rules and penalties →
Eviction Process & Notice Requirements
Cosmopolis-specific rules and penalties →
Rent Increase Laws
Cosmopolis-specific rules and penalties →
Landlord Entry & Access Rules
Cosmopolis-specific rules and penalties →
Maintenance & Habitability Standards
Cosmopolis-specific rules and penalties →
Late Fee Limits
Cosmopolis-specific rules and penalties →
Lease Termination & Renewal
Cosmopolis-specific rules and penalties →
Fair Housing Protections
Cosmopolis-specific rules and penalties →
Tenant Screening Rules
Cosmopolis-specific rules and penalties →
Required Landlord Disclosures
Cosmopolis-specific rules and penalties →
Rent Control
Cosmopolis-specific rules and penalties →
Property Registration Requirements
Cosmopolis-specific rules and penalties →
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Don’t Risk Penalties
At Cosmopolis’s median rent of $1,216/month, a single deposit violation could cost you $2,432+. A wrongful eviction can cost thousands more in court fees, relocation payments, and damages. Know the rules before they cost you.
Don’t risk it. Let LeaseBase track Cosmopolis compliance for you.
Deposit deadlines, eviction notice periods, rent cap calculations — monitored automatically.
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Nearby Cities — Landlord Laws
Own properties in multiple cities? Laws may differ. Check the rules for nearby areas:
Pop. 17,014
Same state laws apply — check for local ordinances
Hoquiam, WAPop. 8,789
Same state laws apply — check for local ordinances
Montesano, WAPop. 4,179
Same state laws apply — check for local ordinances
Westport, WAPop. 2,286
Same state laws apply — check for local ordinances
Ocean Shores, WAPop. 7,549
Same state laws apply — check for local ordinances
Check your Cosmopolis property’s compliance
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Reviewed by Rachid Abadli
Founder & CEO, LeaseBase · Sacramento landlord · Self-managing since 2019
LeaseBase is a property management platform — not a law firm. Consult an attorney for legal advice specific to your situation.
