Everett ADU Zoning Rules & Permit Guide

ADU Regulations in Everett, Washington

Updated September 29, 2026

Snohomish County's largest city, Everett permits ADUs by right in all residential zones under Washington's HB 1337. The city prohibits short-term rentals of ADUs, ensuring they serve the local long-term housing market.

Below is a summary of the key zoning rules applicable to Accessory Dwelling Units in Everett as of 2026. Regulations are governed by Washington's HB 1337 (2023) which limits local ADU restrictions statewide.

Additional Local Requirements for Everett

• ADU by right in all residential zones
• Minimum 200 sq ft
• Short-term rentals prohibited
• Building permit and utility connection required

Frequently Asked Questions About ADUs in Everett

Can I build an ADU in Everett?

Everett follows Washington state law and allows ADUs. Parking is required but no owner occupancy requirement.

What is the maximum ADU size allowed in Everett?

ADUs in Everett can be up to 1,000 square feet, subject to the property's zoning and lot coverage limits. Always confirm the exact allowed size with the Everett planning department before designing your project.

What are the setback requirements for an ADU in Everett?

ADUs in Everett generally require setbacks of 5 ft rear, 5 ft side. Washington's HB 1337 (2023) limits how restrictive local ADU rules can be, but the exact setback figures come from Everett's own land use code — confirm them with the city before you design.