Tenant Improvement

What is it?

You need a Tenant Improvement Permit prior to doing interior work in an existing commercial, mixed use or industrial building by demolitions or build walls and/or ceilings in existing building. 

Examples of common projects are; remove or building walls or ceilings in an existing tenant space, removal of tenant separation wall to expand a tenant area, install a new interior door in an existing wall pour or removal of concrete slabs.
If you are doing a very small scope of work in an office or retail occupancy your project may qualify for an expedited or OTC permit. Please visit the Commercial Expedited/OTC Tenant Improvement page to verify if your project qualifies and to download required forms and the cover page template. 

How Much Does it Cost?

Fees are based on the value of your project. You pay a plan review fee when you submit your plans and the rest when you pick up your permit. Use our fee estimator to estimate how much your permit will cost. See the Fee Schedule (A-Z) page to download the Commercial Fee Schedule for fee related information.

How Long Does It Take?

We try to finish our initial review of new and additions permit in 21 calendar days from submittal. How long it takes to get the final permit depends on how complex your project is and how many corrections, if any, you need to make.  

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.  
Prepare your plans. Plans should be electronic and should be to scale and easy to read.

2. Start Permit Application
You can apply online or an in person intake appointment.

If applying online, submit a request for a permit number and follow e-mailed instructions.

If applying in person, all submittals needs to be in electronic format. See submittal requirements for file naming conventions.

Prepare your plans. Plans should be electronic and should be to scale and easy to read.

Fill out forms:
Commercial Tenant Improvement Packet

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
To schedule an in person intake appointment you can go online, click Schedule an Appointment below or call 425-556-2473 to speak with a Permit Technician.

Tips for a Successful Intake Appointment 

In either application process you will need to pay plan review fees. Fees are due when an application is deemed complete. The fees are calculated based on your project value.

Make corrections and resubmit your plans. Your project reviewer will send you a correction letter if changes are needed and instruction on how to upload new plans through the E-Track Portal.

3. Get Permit
Pick up or print permit. You will be contacted when your plans are approved. 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.

Pay fees. You will need to pay all outstanding fees to pick up or print your permit.

Get related permits. You may need to get additional permits or approvals from other departments. 4. Schedule Inspection
Request an inspection.  See the E-Track Portal page to schedule an inspection online or phone 425-556-2435 and use the pin number on the permit to request an inspection. A Final inspection needs to be requested and approved to complete the inspection process.

5. Complete Project
Receive your Certificate of Occupancy. You will need a Certificate of Occupancy if you have changed the use, construction type or occupancy of an existing space and/or building.

Your permit information will be archived in our electronic document management system.