Most listings are in the $20's per square foot per year. The Oregon City region is experiencing a decline in rates. In the last 3 months, the median rate decreased $2 per sqft per year. That's a 10% decline in rent.
Compared to the rest of the Greater Portland market, the Oregon City region has lower rates, so you should have no trouble finding a great deal in this depreciated region.
In the last 90 days, 2 listings have been listed, which means leases might be going fast. You'll want to be prepared to tour spaces as quick as possible. There aren't many listings below 2,000 square feet posted, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,100 sqft. Most buildings in this area are around 1 floors. Most buildings in this region were built in 1991 and are Class B.