Washington’s new statewide rent control law, House Bill 1217 (HB 1217), has officially gone into effect—and with it, a new set of rules that every landlord must now follow. If you’re managing property in Seattle, Bellevue, Redmond, or anywhere across the state, the stakes just got higher.

One misstep under HB 1217 could lead to serious penalties, including tenant-initiated lease terminations, fines of up to $7,500 per violation, and legal action from the Attorney General’s office.

In this article, we’ll walk through the most common HB 1217 landlord mistakes, help you stay compliant with WA rent control laws, and explain what landlords need to know to protect themselves and their investments.

1. Misunderstanding the Rent Increase Cap

HB 1217 limits rent increases to the lesser of:

  • 7% + Consumer Price Index (CPI) or
  • 10% total per year

That means even if inflation hits 5%, landlords can raise rent no more than 10% annually.

Mistake to avoid: Thinking the CPI amount is added on top of a flat 10%. It’s whichever is lower.

Not sure how CPI affects your rental pricing? Let us run a custom rent analysis for you.

2. Giving the Wrong Type of Notice

HB 1217 also changes notice periods for rent increases:

  • If increasing rent by 3% or more, you must give 180 days’ written notice.
  • For under 3%, you must give at least 90 days’ written notice.

And yes—this applies to both lease renewals and month-to-month tenants.

Mistake to avoid: Delivering a 60-day notice (as was previously acceptable) or using outdated templates that don’t match the new legal requirements.

Need compliant rent increase notice templates? Get in touch with our team to request updated documents.

3. Assuming Exemptions Apply Automatically

Some landlords mistakenly assume that new or small properties are automatically exempt. While HB 1217 does provide certain exemptions, they only apply if:

  • Your property was issued a certificate of occupancy within the last 12 years
  • The unit is part of qualifying affordable housing or
  • The property is owned by a nonprofit that meets exemption criteria

Mistake to avoid: Failing to verify and document your exemption status.

Unsure if your property qualifies? We’ll help you review your exemption eligibility.

4. Poor Record-Keeping and Documentation

Under HB 1217, tenants can challenge rent increases that don’t meet notice requirements, caps, or exemption criteria. That means having clear documentation is now more important than ever.

You should maintain:

  • Copies of rent increase notices with dates sent and received
  • Proof of CPI data used to calculate increases
  • Lease agreements with clear terms

Mistake to avoid: Being unprepared to show your math or missing paper trails.

Pro tip: Use digital tools like property management software to timestamp notices and maintain organized records.

5. Trying to Circumvent the Law with Lease Fees or Charges

Earlier drafts of HB 1217 included caps on fees like late charges and deposits. However, the final version removed those caps.

That said, trying to offset rent caps by adding or inflating other fees may still draw scrutiny—especially if they appear retaliatory or excessive.

Mistake to avoid: Unjustified or hidden charges that make it appear like you’re skirting rent control regulations.

Disclaimer: While there are currently no statewide caps on fees, local jurisdictions may have additional rules. Always check city-specific ordinances.

6. Ignoring the Enforcement Powers of the Attorney General

HB 1217 gives the Washington State Attorney General’s Office broad authority to:

  • Investigate violations
  • Issue civil penalties
  • Enforce compliance via lawsuits

In addition, tenants have the right to break their lease penalty-free if their landlord violates rent increase rules.

Mistake to avoid: Assuming enforcement won’t happen or only applies to large corporate landlords.

Want peace of mind that your practices are compliant? SJA Property Management helps landlords stay protected.

Staying compliant with WA rent control laws isn’t just about following the numbers—it’s about avoiding unnecessary legal risk, protecting your tenant relationships, and running your rental business with confidence.

HB 1217 raises the bar, but with the right strategy, you can stay ahead of the curve.

At SJA Property Management, we work with landlords across the Eastside to:

  • Review and apply CPI data
  • Ensure timely and legal notice delivery
  • Keep records updated and organized
  • Navigate exemption eligibility
  • Provide compliant leasing practices

Don’t wait for a complaint to find out you’re not in compliance. Schedule a consultation with our team today.

Disclaimer:

This article is for general informational purposes only and does not constitute legal advice. Always consult with a qualified attorney regarding your specific situation.