On average, listings lease in the $70's per square foot per year. The Gresham region is experiencing a a rise in rates. In the last 3 months, the median rate went up $40 per sqft per year. That's a 100% rise in rent.
Compared to the rest of the Greater Portland market, the Gresham submarket has higher rates, and you'll need to make a great offer to be in this hot region.
In the last 90 days, 3 listings have come on the market, which means new availabilities most likley are leasing quickly. You'll want to be prepared to make an offer immediately. About 200% of the office spaces in the Gresham are subleases, so you might be able to sign a shorter term by taking over a previous lease. 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 2,540 sqft, there are still 0 listings below 2,000 sqft. Most properties in this area are around 2 floors. Most buildings in this region were built in 1998 and are Class C.