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COVID-19 Freeze for Multnomah County

The four-week (minimum) freeze is in effect through December 16th.

Commercial Construction Permit Types

Learn more about what kind of commercial construction needs a permit. Find out if you need a day care center building permit, a seismic upgrade permit and what permits you need for new construction or for alterations. Includes multifamily building permits information.

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Learn more about types of permits for commercial construction sites (including multi-family dwellings) and when they're needed. Find out if you need permits and what kind of permits you need. 

New construction and alterations that require a building permit 

New construction:

  • Construct new commercial building
  • Construct new multifamily building

Alterations to existing structures:

  • Cell phone antenna- Contact Land Use Review to see if Land Use Review is required.
  • Change the Use or Occupancy in an Existing Building.    
  • Construct an addition   
  • Demolish a structure
  • Day care center -Contact Land Use Review to see if Land Use Review is required.
  • Disabled access upgrades         
  • Install racks/storage shelving    
  • Install siding    
  • Move or construct walls, even if non-bearing partitions 
  • Replace or add new windows or doors  
  • Seismic upgrade
  • Tenant improvements              

For asbestos abatement, contact the Oregon Department of Environmental Quality (DEQ) or call them (800) 452-4011.

Start a new permit application

The related webpages have more information about specific permit types and the permit review process. 

In addition, here is a quick link to the building permit application: