ADU Permit Requirements in Spokane, Washington

Permit Process

Follow these steps to submit your permit application through City of Spokane.

1. 1

   Pre-Application Meeting

   Schedule meeting with Planning staff to discuss ADU proposal, zoning compliance, and preliminary requirements

2. 2

   Application Submission

   Submit complete building permit application with all required documents and fees

   You'll need: Site Plan, Floor Plans, Elevation Drawings, Proof of Ownership, Environmental Assessment

3. 3

   Technical Review

   Planning staff reviews for zoning compliance, code violations, and technical requirements

   You'll need: Utility Plans, Structural Calculations

4. 4

   Permits Issued

   After approval, building permits are issued and ready for construction

5. 5

   Construction Inspections

   Inspectors verify compliance at foundation, framing, electrical, plumbing, and final stages

6. 6

   Certificate of Occupancy

   Final inspection approval and certificate of occupancy issued

Fees and Timeline

Authority Sources

Data on this page is sourced from official records published by the permitting authority. Always verify requirements directly before submitting.

Frequently Asked Questions

Do I need a adu permit in Spokane?

Yes. Spokane requires a adu permit for this type of project. Submitting without a permit may result in fines, required removal, or complications when selling your property.

How long does adu permit approval take in Spokane?

Processing times in Spokane vary depending on project complexity and current review volume. The process involves 6 steps. Contact Spokane Development Services for current timelines.

What documents are required for a adu permit in Spokane?

Spokane requires 7 documents including Site Plan, Floor Plans, Elevation Drawings, Utility Plans, and others. See the full list above for details.

What happens if I build without a adu permit in Spokane?

Building without a permit in Spokane can result in stop-work orders, fines, required removal of work, difficulty selling your property, and insurance complications. It is strongly recommended to obtain proper permits before starting work.

Can PermitMagic help prepare my adu permit submission in Spokane?

Yes. PermitMagic generates a submission-ready packet tailored to Spokane's requirements, including a document checklist, workflow steps, and authority references. Start a permit plan to get your personalized packet.

How much does a adu permit cost in Spokane?

ADU permit fees in Spokane typically range from $1,800 to $4,125, depending on project scope. Fees may include building permit, plan review, and technology surcharges. Verify current fees with Spokane.

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