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Guide · Updated October 24, 2026

Seattle RRIO Inspection: The Items That Fail Most and How to Fix Them

Seattle's Rental Registration and Inspection Ordinance (RRIO) requires most rentals to be registered every 2 years and selects each property for inspection once in its first five years of registration. The city lists six items that fail most often: smoke and carbon monoxide alarms, the water heater discharge line, handrails on steps with 4 or more risers, guardrails, exposed wiring and missing outlet covers, and a missing door viewer. Most can be fixed in an afternoon; two need a licensed trade.

How does RRIO work?

Most Seattle rental housing must be registered with the city's Department of Construction and Inspections (SDCI), and registration lasts 2 years. Properties are picked at random for inspection once during the first five years after they are registered, with a 10% chance of being picked again in the following five years. The notice gives you at least 60 days to complete the inspection, and tenants must get at least two days' notice before it.

You can use a city inspector or a qualified private inspector from the city's list. Owners of multi-unit buildings can have every unit inspected or a 20% sample. The city's "RRIO Checklist" is the standard: when you register, you declare that the property meets it.

Which items fail most often?

SDCI lists these as the most common reasons rentals fail. All of them are visible on a walk-through, so a pre-inspection walk catches them before the inspector does.

  • Missing or inoperable smoke or carbon monoxide detectors
  • Missing discharge line on the hot water tank
  • Missing handrail on steps with 4 or more risers
  • Missing guardrails on landings or decks 30 inches or more above grade, or intermediate rails more than 4 inches apart
  • Exposed wiring (unprotected Romex, missing outlet covers)
  • No observation port (door viewer) in the front door

Which are handyman fixes and which need a licensed trade?

Handrails, guardrails and infill, door viewers, and battery-powered smoke and carbon monoxide alarms are carpentry and hardware work a handyman can do in one visit per building. Hardwired alarms, exposed wiring and outlet work are electrical, and the water heater discharge line is plumbing; in Washington those go to a licensed electrician or plumber. A registered general contractor can line up those trades so the whole list is done before the inspection date.

What does RRIO cost?

From SDCI's fee list: registration or renewal is $126 for the first unit plus $31.50 for each additional unit, a city inspection is $241.50 for the first unit plus $52.50 for each additional unit, and filing a private inspector's results costs $63. Private inspectors set their own rates, and city inspectors re-inspect up to twice at no charge. The city lists penalties of $150 a day for the first 10 days and $500 a day after that. Check the current fees on SDCI's page before budgeting; they change.

A pre-inspection walk, in order

  1. Print the city's RRIO Checklist and walk every unit you'll present
  2. Test every smoke and carbon monoxide alarm; replace dead or expired battery units
  3. Count the risers on every set of steps; add a handrail where there are 4 or more
  4. Measure landings and decks; check guardrail height and gaps over 4 inches
  5. Look at every outlet and switch for missing covers and exposed wiring (electrician list)
  6. Check the water heater for a discharge line (plumber list)
  7. Check the front door for a viewer; install one where it's missing
  8. Photograph each fix for your records

Common questions

How often is a Seattle rental inspected under RRIO?

Each registered property is selected at random once during its first five years of registration, with a 10% chance of being selected again in the next five years. You get at least 60 days' notice to complete the inspection.

Can I use my own inspector?

Yes. You can hire a city inspector or a qualified private inspector from SDCI's list. Private inspectors set their own rates, and filing their results with the city costs $63.

Do I have to inspect every unit in a building?

Owners of multi-unit buildings can choose to have all units inspected or a 20% sample, per SDCI's owner page.

Who fixes exposed wiring or the water heater discharge line?

A licensed electrician and a licensed plumber. Those are trade-licensed work in Washington; a handyman shouldn't do them.

How much notice do tenants get before the inspection?

SDCI says tenants must get at least two days' notice before the inspection.

Have a Seattle rental coming up for RRIO? Send the address and the inspection date and we'll walk it, fix the handyman items and line up the licensed trades. Request a free estimate or call or text (206) 247-5088. Own or manage two or more rentals? See how we work with landlords and property managers.

Sources

General information, not legal advice. Check current rules with the agency that enforces them.