Most listings are in the $30's per square foot per year. The Multnomah County submarket is going through a a boost in rates. In the last 3 months, the median rate went up $4 per sqft per year. That's a 13% rise in rent.
In the last 90 days, 264 listings have been listed, so you'll want to check back regularly for new listings. About 86% of the available space in the Multnomah County are subleases, so you might be able to find a shorter term or below market rent. There aren't many listings below 2,000 square feet posted, so finding a space for a small business might be tough.
Even though the median size is 2,650 sqft, there are still 0 leases below 2,000 sqft. Most properties in this area are approximately 3 floors. Most buildings in this region were built in 1958 and are Class B.