Most listings are in the $30's per square foot per year. The Clackamas region is experiencing a a boost in rates. In the last 3 months, the median rate went up $17 per sqft per year. That's a 100% increase in rent.
Compared to the rest of the Greater Portland market, the Clackamas submarket has more expensive rates, and you'll have to negotiate above asking rent to be in this hot submarket.
In the last 90 days, 11 listings have been listed, which means listings are probably going fast. You'll want to be prepared to make an offer immediately. About 9% of the listings in the Clackamas are subleases, so you will probably have to consider a longer term lease. There aren't many listings below 2,000 square feet available, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 2,300 sqft. Most buildings in this area are approximately 2 stories. Most buildings in this region were built in 1998 and are Class A.