ADU Permits: Everett vs Marysville
How do adu permits rules compare between Everett, WA and Marysville, WA?
Everett, WA
Snohomish County
Everett permits accessory dwelling units under Title 19 of the Everett Municipal Code (Zoning), as amended by Ordinance 3963-23 to align with Washington HB 1337 (RCW 36.70A.681). Up to two ADUs are allowed per single-family lot inside Everett's urban growth area. Building permits are filed through the city's Development Services portal and the regional MyBuildingPermit.com system.
View full Everett rules →Marysville, WA
Snohomish County
No data available yet for Marysville.
Key Facts Comparison
| Fact | Everett | Marysville |
|---|---|---|
| Code Section | EMC Title 19, Ord. 3963-23 | - |
| ADUs Per Lot | Up to 2 (per HB 1337) | - |
| Detached ADU Max | 800 sq ft | - |
| Attached ADU Max | 50% of primary or 800 sq ft | - |
| State Law | RCW 36.70A.681 | - |
| Permit Portal | MyBuildingPermit.com | - |
Highlighted rows indicate differences between cities.
Everett FAQ
Do I need a permit to build an ADU in Everett?
Yes. A building permit is required through the Everett Development Services Department, filed via MyBuildingPermit.com. The structure must meet EMC Title 19 ADU standards as amended by Ordinance 3963-23 and the 2021 I-Codes adopted by Washington. Final inspection sign-off is required before occupancy.
How many ADUs can I build on my Everett lot?
Up to two ADUs per residential lot inside the urban growth area, consistent with Washington HB 1337 (RCW 36.70A.681). Common configurations are one attached and one detached ADU, or two attached units. Each must meet the size and height caps in EMC Title 19.
Marysville FAQ
No FAQs available.
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