Change of Use or Occupancy in Portland: What Triggers It and What It Costs in Time

Portland Permitting and Development separates two ideas. A change of use is any new use of a building or part of one, such as an office becoming a cafe. A change of occupancy is a change of use that moves the space into a different building code occupancy classification, such as an office becoming a child care center. A restaurant growing from fewer than 50 seats to 50 or more is a less obvious example.

A permit even with no construction

The City requires a permit to document a change of use or occupancy classification even if no alterations are planned. Inspections are required even with no construction, and the permit expires if 180 days pass without an approved inspection.

Upgrades it can trigger

• Accessibility. New work must meet current requirements. Up to 25 percent of total construction cost may go toward removing existing barriers, in priority order: parking, the accessible route to the entry, the accessible entry, then restrooms.

• Seismic under Title 24.85. Requirements depend on the new use, how much the occupant load increases and how much of the building changes. A seismic trigger analysis compares the 2004 baseline occupant load to the proposed one.

• Fire and life safety. Exits and similar items must meet new construction standards, and sprinkler systems may need to be added.

• Building code summary. You must show the existing structure meets new construction criteria, or explain how deficiencies will be fixed.

Zoning comes too

• Parking, bike parking, pedestrian amenities and landscaping may be required depending on zone and location.

• Residential to commercial conversions usually need pedestrian and bike parking improvements.

• Alterations above a value threshold set in the zoning code can trigger site upgrades.

• Design review or historic resource review may apply.

• System development charges may apply if the use increases customers, traffic or resource use.

Who has to draw it

A licensed architect is required in certain cases, including buildings over 4,000 square feet, floor to ceiling heights over 20 feet, structural alterations and changes of occupancy.

Timeline

The City's goal is about four weeks for the first review. Correction checksheets add time, and complex cases can take months. Requirements that cannot be met can go to a building code appeal. Land use reviews take longer because they require public notice.

Common questions

What is the difference between a change of use and a change of occupancy?

A change of use is any new use. A change of occupancy is a change of use that moves the space into a different building code occupancy classification, such as office to child care.

Do I need a permit if I am not building anything?

Yes. Portland requires a permit to document a change of use or occupancy classification even with no alterations, and inspections are still required.

Will a change of occupancy trigger a seismic upgrade?

It can. Under Title 24.85, it depends on the new use, the increase in occupant load and how much of the building changes. A seismic trigger analysis answers it.

How long does a Portland change of occupancy permit take?

The City's goal is about four weeks for the first review. Corrections add time, and complex cases can take months.

How SASHKOV handles it

• Confirms the existing permitted occupancy and the proposed classification before a lease is signed.

• Runs the seismic trigger analysis, building code summary and accessibility scope.

• Brings in the licensed architect and engineers the change requires under one SASHKOV contract.

• Submits through DevHub, answers checksheets and carries the permit to a new certificate of occupancy.

Where a building requires a licensed architect or engineer of record, SASHKOV brings them into the contract.

Before a lease, a Site Snapshot flags zoning and permit history in 24 hours on business days. For the code analysis and permit, see Feasibility and Regulatory Strategy.

Changing what a building is used for? Send the address, current use and new use, and SASHKOV will map the triggers and timeline in business days.