Marysville, WA Accessory Structures: ADU Rental Restrictions (2026)
Key Facts
- Use as short-term rental
- Prohibited
- Short-term rental defined as
- Paid lodging under 30 consecutive nights
- Owner-occupancy requirement
- None (long-term rental allowed)
- Governing table
- MMC Section 22C.185.020, Table 1
- First violation fine
- $150 noncommercial / $250 commercial
- Condo resale protection
- City can't block ADU condo sales
Summary
Marysville's accessory dwelling unit code flatly bars using an ADU as a short-term rental, defined as lodging offered for a fee for fewer than 30 consecutive nights. MMC Section 22C.185.020's Table 1 pairs that ban with no owner-occupancy requirement, so an ADU can be rented long-term without the owner living on site, just never rented nightly.
Owner occupancy requirement for principal dwelling or accessory dwelling units: None. ... Use as short-term rental: Prohibited. ... "Short-term rental" means a lodging use, that is not a hotel or motel or bed and breakfast, in which a dwelling unit, or portion thereof, is offered or provided to a guest by a short-term rental operator for a fee for fewer than 30 consecutive nights. ... all accessory dwelling units shall also be subject to the condition that the use shall be discontinued if: (a) The accessory dwelling unit is substantially altered and no longer conforms with the plans approved by the community development director and the building official; or (b) The subject lot ceases to maintain the required parking spaces outlined in MMC Section 22C.130.030, Table 1.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: rev 4922912; v1 updated 2026-06-08; through 06-08-2026).
Full Breakdown
200, defines a 'short-term rental' as 'a lodging use, that is not a hotel or motel or bed and breakfast, in which a dwelling unit, or portion thereof, is offered or provided to a guest by a short-term rental operator for a fee for fewer than 30 consecutive nights,' so any ADU booking under that 30-night threshold falls under the prohibition regardless of the platform used to advertise it. The same table lists the owner-occupancy requirement for both the principal dwelling and the ADU as 'None,' so the ban isn't paired with a requirement that the owner live in either unit; an ADU can be leased as ordinary long-term housing, just never marketed as nightly or short-stay lodging.
The city also protects an ADU's resale value once the short-term-rental door is closed: subsection (3) bars Marysville from refusing to let a condominium unit be sold or conveyed separately from the main structure solely because it started life as an ADU. 030's Table 1, a hook the city could use against an ADU converted to unauthorized nightly rental use.
Violations & Fines
Advertising or operating an ADU as a nightly or short-term rental violates Table 1 of Section 22C.185.020 and is a Title 22C land use violation under MMC Section 4.02.040(3)(g): $150 for a first noncommercial violation, $250 if run as a business, rising to $300/$500 on a second violation within two years, and misdemeanor charges in Marysville municipal court for a third. The director can also order the unauthorized short-term-rental use discontinued outright.
Frequently Asked Questions
Can I rent out my Marysville ADU on Airbnb or VRBO?
Can I still rent my ADU out long-term?
What happens if I run my ADU as a short-term rental anyway?
Does the short-term rental ban affect selling my ADU as a condo?
Sources & Official References
Other rules in Marysville
Compare Marysville to another location·View the Washington accessory structures overview
See something wrong?
Help us keep this page accurate. If you notice an error or outdated information, let us know.