3. Commercial Construction (including multifamily buildings) Sites WORK PROPOSED PERMIT NEEDED? WHAT TYPE OF PERMIT? New construction:   Construct new commercial building Building Permit (CO) Construct new multifamily building Building Permit (CO)     Alterations to existing structures:   Demolish a structure Building Permit (CO) Construct an addition Building Permit (CO) Asbestos abatement Contact Oregon Department of Environmental Quality (DEQ) or call (800) 452-4011. Cell phone antenna Building Permit (CO) Contact Land Use Review staff at (503) 823-7310 to see if Land Use Review is required. Day care center Building Permit (CO) Contact Land Use Review staff at (503) 823-7310 to see if Land Use Review is required. Disabled access upgrades Building Permit (CO) Install racks/storage shelving Building Permit (CO) Install siding Building Permit (CO) Tenant improvements Building Permit (CO) Seismic upgrade Building Permit (CO) Move or construct walls, even if non-bearing partitions Building Permit (CO) Change the Use or Occupancy in an Existing Building. Building Permit (CO) Replace or add new windows or doors Building Permit (CO)