What is it?

You need a Plumbing Permit any time plumbing is installed, altered, extended, or connected to any new plumbing fixture. You do not need a Plumbing Permit to stop leaks or clear stoppages, including the removal and reinstallation of water closets, or the repairing of leaks in pipes, valves, or fixtures, provided such repairs do not involve or require the replacement or rearrangement of valves, pipes, or fixtures.

How Much Does it Cost?

Fees for Plumbing Permits issued over-the-counter are based on a base fee, technology fee and fixture count. Fees for permits requiring Plan Review are based on the base fee, technology fee, fixture count and plan review fee. See the Fee Schedule (A-Z) page to download the Plumbing Fee Schedule for fee related information or try using the Fee Estimator.

How Long Does It Take?

We try to finish our initial review of new and additions permit in 21 calendar days from submittal. Most Plumbing Permits are issued over-the-counter with the exception of new commercial, multifamily and mixed use buildings, installation/alteration of medical gas systems, commercial kitchens, deli’s or three compartment sinks and installation of any grease interceptor. The time it takes to issue a Plumbing Permit is based project complexity and any necessary permit corrections.

Steps to Get Your Permit

1. Research
Get your property information. Find property information to help you plan your project. Property Viewer Interactive Map

Determine restrictions to your project. Research our codes to determine what occupancies are allowed in the building and what land uses are allowed in that zoning area. Redmond Zoning Code

2. Start Permit Application
Prepare your plans. Plans should be electronic and should be to scale and easy to read.
Fill out the following form:  Plumbing Permit Application.

Coordinate with other agencies. You may need permits or approvals from other  agencies. These are the most common agencies you may need to work with for your permit type:
  • King County Public Health – Food Handling
  • King County DSC – Medical Facility
3. Submit Plans and Application Material
Simple over-the-counter permits can be applied for in person at the Development Services Center using a paper application form, and are issued at the time of application. Intake appointments are required when you are submitting any permit that requires plan review or the issuance of three (3) or more over-the-counter permits. Call 425-556-2473 to speak with a Permit Technician who can assist you in scheduling an intake appointment or use the online booking tool or click Schedule an Appointment below.

Pay Fees
For permits issued over-the-counter, the total fee is due at the time of application. For permits requiring Plan Review, payment of a plan review and technology fee is due at intake. The permit and fixture fee is due once the permit is approved for issuance.

4. Plan Review
For plan review projects, your project reviewer will send you a correction letter if changes are needed. Make corrections and resubmit your plans. The project reviewer will instruct you on how to upload new plans through the E-Track portal.

5. Get Permit and Pay Final Fees
Pick up or print permit. You will be contacted when your plans are approved. Once outstanding fees are paid, you can pick up your permit and approved plans at the Development Service Center with a blank USB drive or log into the E-Track Portal, you can print your permit and approved plans.  

6. Schedule Inspection
Request an inspection.  See the E-Track Portal page to schedule an inspection online or call 425-556-2435 and use the IVR pin number on the permit to request an inspection. A Final inspection needs to be requested and approved to complete the inspection process.

7. Complete Project and Close Permit
Final all inspections and close your permit. Your permit information will be archived in our electronic document management system.