ADU Rules: Everett vs Marysville
How do adu rules rules compare between Everett, WA and Marysville, WA?
Everett has fewer restrictions than Marysville.
Everett, WA
Snohomish County
Everett allows two ADUs per single-family lot per HB 1337. As the Snohomish County seat, Everett prioritizes affordable housing strategies including ADU development near transit and Boeing employment centers.
View full Everett rules →Marysville, WA
Snohomish County
Marysville City Council adopted an interim ordinance on June 23, 2024, to comply with state HB 1337, allowing up to 2 ADUs per single-family lot. Final regulations are expected in fall 2025. HB 1337 requires: min. 1,000 sq ft ADU; 24 ft height minimum; no owner-occupancy required; impact fees capped at 50% of principal unit. Building permit required.
View full Marysville rules →Key Facts Comparison
| Fact | Everett | Marysville |
|---|---|---|
| ADUs Allowed | 2 per lot (HB 1337) | - |
| Max Size | 1,000 sq ft | - |
| Transit | Sounder, Swift BRT | - |
| Housing Plan | ADUs prioritized | - |
| State Mandate | - | HB 1337 (2023) — RCW 36.70A.680 |
| Interim Ordinance | - | Adopted June 23, 2024 |
| Maximum ADUs | - | 2 per single-family lot |
| No Owner-Occupancy | - | Required (HB 1337 preempts) |
Highlighted rows indicate differences between cities.
Everett FAQ
Can I build an ADU in Everett?
Yes. Two ADUs per single-family lot. No parking required near Everett Station and Swift BRT routes.
Do I need to live on-site?
No. Owner-occupancy cannot be required under HB 1337.
Marysville FAQ
Can I build an ADU on my property in Marysville?
Marysville City Council adopted an interim ordinance on June 23, 2024, to comply with state HB 1337, allowing up to 2 ADUs per single-family lot. Final regulations are expected in fall 2025. HB 1337 requires: min. 1,000 sq ft ADU; 24 ft height minimum; no owner-occupancy required; impact fees...
What are the size limits for an accessory dwelling unit in Marysville?
State Mandate: HB 1337 (2023) — RCW 36.70A.680. Interim Ordinance: Adopted June 23, 2024. Maximum ADUs: 2 per single-family lot. No Owner-Occupancy: Required (HB 1337 preempts).
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