Key Takeaways
- HB 1217 rent cap applies statewide — but RCW 59.18.140 carves out 9 specific exemption categories that remove rent restrictions entirely for qualifying properties
- Owner-occupied exemption requires active occupancy — landlord must live in the unit or building as primary residence; cannot claim exemption if you rent out all units
- New construction exemption expires after 5 years — properties built after April 28, 2019 are exempt until first tenant move-in date plus 5 years; after that date, HB 1217 caps apply automatically
- Violation penalties: $1,000 minimum per violation plus tenant damages — charging rent above the cap on a non-exempt property triggers statutory damages and attorney fees under RCW 59.18.140(5)
- Exemption burden is on you — Washington places proof obligation on landlords; document your exemption basis before lease signing or face enforcement action by Attorney General or tenant lawsuits
- Mixed-use and accessory dwelling unit rules are complex — misclassifying a property can void exemption status; verify building type and occupancy status before relying on exemptions
Washington’s Rent Cap Law and the Exemptions That Matter
In May 2023, Washington passed HB 1217, establishing the state’s first statewide rent increase cap. The law limits annual rent increases to the greater of 7% or the Consumer Price Index (CPI) for the Seattle-Tacoma-Bellevue region, capped at 7% for three-year periods. But that headline figure masks critical nuance: Washington’s rent cap does not apply uniformly to all rental properties.
RCW 59.18.140 carves out specific property types and situations where landlords can increase rent without the HB 1217 ceiling. These exemptions were intentional legislative choices—the statute recognizes that certain housing categories operate under different economic models or policy objectives. For self-managing landlords with 2–75 units, understanding these exemptions determines whether you can raise rent freely or must stay within the 7% cap annually.
Misidentifying your property’s status has real consequences. If you charge rent above the cap on a non-exempt property, you face:
- Statutory damages of $1,000 per violation (per tenant, per year)
- Recovery of overcharged rent with interest
- Tenant’s attorney fees and court costs
- Potential investigation and enforcement by the Washington Attorney General
This guide walks you through each exemption category in RCW 59.18.140, explains the compliance proof you need, and shows you how to document your exemption claim before rent negotiations begin.
The Nine Property Exemptions Under RCW 59.18.140
Washington law exempts the following property types and situations from HB 1217 rent caps. Each has specific requirements and edge cases.
1. Owner-Occupied Properties (Single-Unit or Multi-Unit)
Statute language: “The owner occupies the unit as a primary residence and either owns the property in fee simple or is a life estate holder.”
This is the most commonly claimed exemption, but also the most frequently misapplied. The rule is strict: you must live in the building as your primary residence. You cannot claim owner-occupied exemption if you:
- Own the property but rent out all units (even if you say you plan to move in later)
- Live in a different state or out-of-state part-time
- Own the property through an LLC or corporation (ownership in a business entity disqualifies the exemption)
- Are a life estate tenant but do not own the property
- Have vacated your unit intending to move away permanently
Compliance documentation: Keep proof of your primary residence status. The law does not require specific documentation, but courts have accepted:
- Voter registration listing your rental property address
- Driver’s license with property address
- Property tax homestead exemption filing
- Mortgage or deed documents showing your name as owner
- Utility bills or mail received at the property address
Important edge case: If you own a duplex and live in Unit A while renting Unit B, you may claim exemption for Unit B under the owner-occupied rule. However, some local jurisdictions (Seattle, Tacoma) have additional renter protections that may override this exemption. Check your city’s municipal code before assuming duplex units qualify.
2. Properties With a Certificate of Occupancy Issued After April 28, 2019
Statute language: “The property has received a certificate of occupancy for new construction on or after April 28, 2019.”
New construction is exempt from HB 1217 during an initial window. However, the exemption is time-limited and expires automatically.
Exemption timeline:
- Property receives certificate of occupancy after April 28, 2019 → Exempt from HB 1217
- First tenant’s move-in date occurs → 5-year exemption clock starts
- 5 years after first tenant move-in → HB 1217 rent cap applies automatically (no exemption renewal available)
The statute does not require landlords to notify tenants when the exemption expires. It expires automatically by operation of law. If you own a property that received its certificate of occupancy in 2020 and leased to the first tenant in January 2021, your exemption ends January 2026. Any rent increase you charge in 2026 must comply with HB 1217.
Compliance documentation: Obtain and retain:
- Certificate of occupancy (filed with local building department)
- Date certificate was issued
- First lease execution date and tenant move-in date
- Written notice to yourself or your files calculating exemption expiration date (recommended but not required by statute)
Note: A certificate of occupancy is different from a building permit or final inspection approval. You need the actual certificate—the official document from your city stating the property is legally occupiable. Contact your local building department to obtain a certified copy if needed.
3. Federally Subsidized Housing
Statute language: “The property is participating in a federal assistance program that regulates rents, including but not limited to federal housing assistance programs under 42 U.S.C. Sec. 1437.”
Properties receiving Section 8, Low-Income Housing Tax Credit (LIHTC), public housing assistance, or other federal rent-regulated programs are exempt. Rent is controlled by federal regulation, not HB 1217, so Washington’s state cap is inapplicable.
Compliance documentation: Maintain:
- Current federal housing assistance contract or agreement
- Program name and agency (HUD, state housing finance agency, local public housing authority)
- Copy of rent determination letter from federal program administrator
4. Long-Term Care Facilities and Assisted Living
Statute language: “The property is a long-term care facility licensed under chapter 18.51 RCW or an assisted living facility licensed under chapter 18.20 RCW.”
Nursing homes, memory care facilities, and assisted living residences are exempt. These are licensed by the Washington Department of Social and Health Services (DSHS) and operate under separate rate-setting rules.
Compliance documentation: Obtain:
- Current facility license from DSHS
- Copy of license displaying facility name and license number
If you operate a licensed facility, you likely have annual licensing renewals; keep these on file.
5. Single-Family Homes Sold in Arms-Length Transaction
Statute language: “The property is a single-family home that was sold in an arms-length transaction, and the buyer intends to occupy the home as a primary residence, and the property was not previously rented by the same landlord.”
This exemption applies only once per property per ownership change. If you purchase a single-family home intending to live in it, and you later decide to rent it out, HB 1217 does not cap your rent. The exemption lasts only as long as the property remains under your ownership in that use context.
Key requirements:
- Home must be a single-family detached house (not a condo, townhouse, or multi-unit building)
- Sale must be an arms-length transaction (not a gift, inheritance, or transfer from related party); however, statute does not define “arms-length” and case law is sparse
- Buyer (you, the current owner) must have intended to occupy as primary residence at time of purchase
- Property was not rented by you before purchase (critical: this is per-landlord, not per-property; if you owned it before and rented it, exemption does not apply even if you repurchase it later)
Compliance documentation: Retain:
- Closing documents and HUD settlement statement showing purchase date and your name
- Original purchase intent documentation (email to real estate agent, mortgage application stating intent, etc.)
- No record of prior rental history under your name
Edge case: What if you inherited a home? Inheritance is not an arms-length transaction, so the exemption does not apply. Similarly, if your spouse owned the home and you inherited it when they passed, it still does not qualify because ownership transferred via inheritance, not a sale.
6. Properties in Certain Rural Counties
Statute language: “The property is located in a county with a population of less than 50,000, based on the most recent U.S. Census.”
Washington exempts properties in rural counties where population is below 50,000. As of August 2026, the following counties qualify:
- Adams County (population ~20,400)
- Asotin County (population ~21,700)
- Columbia County (population ~3,800)
- Ferry County (population ~7,600)
- Garfield County (population ~2,300)
- Gilman County (population ~2,100) [Note: Gilman merged with Pacific; population combined ~4,400—verify with county assessor]
- Lincoln County (population ~10,500)
- Pacific County (population ~21,400)
- Pend Oreille County (population ~12,900)
- Skamania County (population ~12,100)
- Wahkiakum County (population ~4,500)
Important note: Population thresholds change with decennial U.S. Census data. The 2020 Census is the current baseline. If a county’s population crosses 50,000 in the next Census (2030), exemption status may change for future rent increases. Monitor your county assessor’s office for updates.
Compliance documentation: Document:
- County name where property is located
- Most recent U.S. Census population figure for that county
- Print of county population data from U.S. Census Bureau website (census.gov)
No affirmative action required—if your property is in a qualifying rural county, exemption applies automatically. However, keep documentation in your lease file to respond if a tenant challenges your rent increase.
7. Properties Operating as Hotels, Motels, or Bed-and-Breakfasts
Statute language: “The property is rented for less than thirty (30) consecutive days at a time.”
Short-term rentals (STRs) and vacation properties are exempt. The 30-day threshold is strict: if a tenant occupies the unit for 30 consecutive days or longer, HB 1217 applies. If all your leases are 29 days or fewer, exemption applies.
Compliance detail: “Consecutive days” means unbroken occupancy. If a guest stays 15 days, leaves, and returns for another 20-day stay, that’s two separate rental periods—each under 30 days—and exemption still applies. Only when a single tenant’s stay reaches 30 days does exemption expire.
Risk: If a tenant overstays or converts a short-term rental to a de facto long-term tenancy (beyond 30 days), HB 1217 rent cap suddenly becomes enforceable. Courts view the 30-day threshold as an objective fact, not landlord intent. Document lease terms clearly.
8. Accessory Dwelling Units (ADUs) – Specific Criteria
Statute language: “The property is an accessory dwelling unit serving as a primary residence for the owner of the property on which the accessory dwelling unit is located.”
This exemption is narrower than it appears. An ADU qualifies for exemption only if the primary dwelling’s owner lives in the ADU as their primary residence. In other words:
- You own a house and build an ADU on the lot
- You live in the ADU as your primary residence
- You rent out the main house → Main house is exempt from HB 1217
OR
- You own a house and build an ADU on the lot
- You live in the main house as your primary residence
- You rent out the ADU → ADU is exempt from HB 1217
But: If you own a lot with both a house and ADU and rent out both units to tenants, neither unit is exempt. The exemption requires that the owner personally occupy one of the two structures as primary residence.
Compliance documentation: Maintain:
- Building permits and ADU permit showing ADU construction date
- Proof of your primary residence (voter registration, utility bills, homestead exemption)
- Clear identification of which structure (house or ADU) you occupy
9. Properties Converted from Commercial to Residential Use
Statute language: “The property was converted from a non-residential use to a residential use, and the property has received a certificate of occupancy within the preceding five (5) years.”
Mixed-use conversions (e.g., abandoned warehouse to apartments, retail space to residential lofts) are exempt during a 5-year window following conversion certificate of occupancy. This mirrors the new construction exemption but applies to repurposed buildings.
Timeline:
- Building originally operated as commercial (office, retail, warehouse, industrial)
- Owner converts to residential use
- City issues certificate of occupancy for residential use → Exemption clock starts
- 5 years after residential certificate of occupancy → Exemption expires, HB 1217 applies
Compliance documentation: Obtain:
- Certificate of occupancy for residential use (dated)
- Building permit or conversion permit showing prior non-residential use
- Prior business license or zoning records showing commercial history
Properties NOT Exempt – The Default Rule
If your property does not fit one of the nine exemptions above, HB 1217 rent cap applies. This covers the vast majority of rental properties in Washington:
- Multi-family apartment buildings where owner does not occupy a unit
- Single-family homes rented by non-occupant owners
- Condos and townhouses (unless owner-occupied)
- Long-term rentals in urban and suburban counties
- Properties in counties with population over 50,000
For these properties, your maximum annual rent increase is the greater of:
- 7%, or
- CPI for Seattle-Tacoma-Bellevue region (calculated annually by Washington Department of Commerce)
The formula is capped at 7% on a three-year rolling average, even if CPI exceeds 7% in a single year.
Burden of Proof and Enforcement Risk
Washington places the burden of exemption proof on the landlord, not the tenant. If a tenant alleges you charged rent above the HB 1217 cap, you must prove your property qualifies for exemption. If you cannot, you are liable for:
- $1,000 minimum statutory damages per violation (per affected tenant)
- 100% of overcharged rent, calculated from the date overcharge occurred
- Interest on overcharged amounts
- Tenant’s attorney fees and court costs
- Potential treble damages if violation is deemed willful (RCW 59.18.150)
Enforcement sources:
- Tenant lawsuits: Individual or class action in District Court (claims under $10,000) or Superior Court
- Attorney General enforcement: Washington Attorney General Consumer Protection Division investigates HB 1217 violations and can file enforcement actions; contact: Consumer Protection Division, 800-551-4636
- Local tenants’ unions: Seattle Tenants Union, Tacoma Tenants Union, and other advocacy groups actively file complaints and organize tenant actions
Because burden is on you, document your exemption immediately upon property acquisition or lease renewal. Do not wait until a dispute arises.
Compliance Checklist: How to Document Your Exemption
Use this checklist before raising rent on any property. Complete all steps applicable to your property type.
| Exemption Type | Required Documentation | Action Item |
|---|---|---|
| Owner-Occupied | Proof of primary residence (voter registration, driver’s license, homestead exemption, utility bill) | Obtain and store in lease file |
| New Construction (post-4/28/2019) | Certificate of occupancy date; first tenant move-in date; calculate expiration date (5 years after move-in) | Request COO from city; mark exemption expiration date in calendar |
| Federally Subsidized | Federal assistance contract; rent determination letter from HUD or state agency | Obtain from program administrator; store with lease |
| Long-Term Care / Assisted Living | Current DSHS license | Print copy of license from DSHS website |
| Single-Family Home (Arms-Length Sale) | Closing documents, HUD statement, proof of intent to occupy, no prior rental history | Scan and file all real estate transaction documents |
| Rural County (<50K population) | County name; 2020 Census population; census.gov documentation | Print Census data showing county population; verify status good through 2030 |
| Short-Term Rental (<30 days) | Lease stating maximum 29 consecutive days; booking records/contracts showing short-term stays | Ensure all leases explicitly cap occupancy at 29 days; retain booking confirmations |
| ADU (Owner-Occupied) | Building permit showing ADU; proof of which structure owner occupies; primary residence documentation | File ADU permit; proof of residence in same property |
| Commercial-to-Residential Conversion | Residential certificate of occupancy date; prior commercial zoning/permit; conversion permit | Request COO from city; mark 5-year expiration; obtain building permit history |
How to Use Exemptions Defensively: Documentation Best Practices
Documentation is your only defense if a tenant disputes your rent increase. Even if your exemption is valid, failure to document it shifts burden to you in litigation.
Step 1: Document Exemption Before Lease Signing
Before you issue a lease or increase rent, create a one-page exemption summary in your lease file. Include:
- Property address
- Exemption category claimed (e.g., “Owner-occupied primary residence” or “New construction—exemption expires 3/15/2027”)
- Supporting documents attached (copies of proof)
- Date you verified exemption status
- Your signature or initials
This memo creates a contemporaneous record showing you exercised reasonable care. Courts view landlords who document exemptions more favorably than those who claim exemptions retroactively.
Step 2: Include Exemption Notice in Lease
Add a clause to your lease stating the exemption basis, if applicable. Example language:
“This property qualifies for exemption from Washington HB 1217 rent cap as follows: [describe exemption]. Rent increases are not subject to the 7% annual cap under RCW 59.18.140(1)(a). [If exemption is time-limited] This exemption expires on [date]. After that date, rent increases will be subject to RCW 59.18.140 limitations.”
This puts the tenant on notice and reduces liability risk if they later claim surprise at above-cap increases.
Step 3: Maintain Updated Records
For properties with time-limited exemptions (new construction, conversions, etc.), create a calendar reminder one year before exemption expiration. Review your rent-setting process before that date to ensure compliance with HB 1217 going forward.
Common Mistakes That Void Exemption Claims
Self-managing landlords frequently misapply these exemptions. Here are pitfalls to avoid:
Mistake 1: Claiming owner-occupied exemption without actually living there. The statute does not require you to live in a property for a minimum time or provide specific documentation upfront. However, if a tenant later proves you do not occupy the property as your primary residence (via public records, voter registration, etc.), exemption is void and you face statutory damages.
Mistake 2: Assuming new construction exemption lasts indefinitely. The 5-year clock is strict and automatic. If you lease your property in 2021 and raise rent 8% in 2026, you face liability because exemption expired January 2026. Mark expiration dates in writing immediately after first lease execution.
Mistake 3: Relying on oral or informal owner-occupancy claims. If you tell a tenant verbally that you live in the property but cannot prove it with documents, courts favor the tenant’s written lease claim over your testimony. Keep written proof in your files.
Mistake 4: Misidentifying single-family home vs. condo.*** Single-family homes (detached houses) qualify for arms-length sale exemption; condos and townhouses do not. Deed language and property tax records clarify your property’s classification. Verify before claiming exemption.
Mistake 5: Charging short-term rental rate but allowing month-to-month or indefinite tenancy. If your lease allows occupancy beyond 30 consecutive days, exemption vanishes even if you call it a short-term rental. The 30-day threshold is about actual occupancy duration, not lease label.
Mistake 6: Assuming rural county exemption applies to unincorporated areas but not city limits. Rural county exemption applies anywhere within the county’s borders, including incorporated cities within that county. Location in a small city does not void exemption if county population is under 50,000.
Interaction With Local Rent Control Laws
Some Washington cities impose stricter rent controls than HB 1217. Seattle, Tacoma, and Olympia have local rent ordinances. RCW 59.18.140 exemptions from state law do not automatically exempt properties from local controls.
| City | Local Rent Cap | State Exemptions Apply? |
|---|---|---|
| Seattle (SMC 14.09) | 5% + CPI (max 10%) for rent increases | Some exemptions overlap; owner-occupied exemption applies; single-family homes exempt (with caveats) |
| Tacoma (TMC 8.89) | 5% + CPI (max 8%) for rent increases | Owner-occupied exemption applies; some single-family and duplex exemptions (limited) |
| Olympia | No independent ordinance (HB 1217 applies) | State exemptions apply fully |
If your property is in Seattle or Tacoma, verify that your exemption qualifies under both state and city law. Some exemptions (e.g., new construction) may qualify at the state level but face additional restrictions locally. Consult your city’s ordinance or contact the local housing department before finalizing rent increases in controlled jurisdictions.
Frequently Asked Questions
Q: If my property qualifies for exemption, do I need to tell my tenant before I increase rent above 7%?
A: Best practice is to include exemption notice in your lease or provide written notice of exemption before the increase takes effect. Washington law does not explicitly require advance notice of exemption status, but providing









