Submittal Requirements

Prior to Applying:

• For restaurant tenant improvements, check with Public Works about grease interceptor requirements before submitting your building permit.
• For food service establishments, submit designs to King County Public Health for approval prior to permit issuance.
• Separate permits are required for electrical, plumbing, mechanical work, signage, and more.
• No new oil heating systems are allowed in aquifer protection areas.

Documents to Submit (Each as an Individual File):

• Completed and Signed Building Permit Application
• Site Plan (8.5” x 11”): Includes location, dimensions, property lines, and legal description.
• Architectural Plans: Including building data, floor layout, windows/doors, fixture locations, fire-rated assemblies, and access for disabled persons.
• Full Floor Plan: Includes tenant details and exits.
• Structural Plans & Calculations (if applicable).
• Additional Documentation: As required for electrical, plumbing, mechanical work, or other permits.

Other Items to Note:

• The applicant must provide a material and labor cost estimate.
• Plan reviewer checks plans but does not provide design services.
• Asbestos survey required before renovation or demolition work. 

For detailed instructions, refer to the full Submittal Requirements PDF.

Civil Construction Permit

A Civil Construction Permit may be required if site or utility work outside the building is proposed. Please contact a Permit Specialist to help determine if a Civil Construction Permit is required. If required, a Civil Construction Permit application shall run concurrently with a Building Permit application. 

Over-the-Counter Permits

The following over-the-counter permits can be applied for, paid for and printed using our Online Permitting Portal:

• Electrical
• Mechanical
• Plumbing 
• Re-roof
• Medical Gas/Hazardous Piping

How to Apply?

STEP 1. Email the Project Name, Address and Scope of Work to: permittech@rentonwa.gov
STEP 2. A Permit Specialist will reply with a secure file share link to upload the required files
STEP 3. Allow 5 days for initial application review.
STEP 4. IF COMPLETE, you will be notified of acceptance and given payment instructions. 
IF INCOMPLETE, you will be notified of incomplete requirements and instructions to proceed.

Tip: Review decisions may be significantly delayed by incomplete or inaccurate submittals. Closely follow the Submittal Requirements to prevent delays!

Review Response Times

Over-the-counter permits are typically same day.
Commercial first review decisions are typically 3-4 weeks.
Commercial revision decisions are typically 1-2 weeks. 

Need Additional Help?

Schedule a Virtual Appointment,
Email Building Customer Service: Permittech@rentonwa.gov, or 
Call Building Customer Service: 425-430-7215

Once your permit is approved, you may begin work and scheduling inspections. Please print a copy of your permit to keep on-site for when your inspector arrives.

Scheduling Inspections

Inspections can be scheduled for the following business day online or by phone at: 425-430-7202.
Telephone Scheduling Help Guide

Day of Inspection

While we are unable to provide you a time window when scheduling, we are happy to assist on the day of the inspection:

STEP 1: Using our Permit Portal, select "Today's Inspections"
STEP 2: Locate your inspector's name and number by locating your permit (listed alphanumerically)
STEP 3: Phone your inspector to request a time window for arrival

Tip: See our "What to Expect from your Inspection"(PDF, 957KB) help sheet to prepare for a successful inspection.

Certificate of Occupancy (TCO & CO)