Most listings are in the $10's per square foot per year. The Salmon Creek submarket is experiencing a a boost in rates. In the last 3 months, the median rate increased $18 per sqft per year.
Compared to the rest of the Greater Portland market, the Salmon Creek region has lower rates, so you should have no trouble finding a great deal in this undervalued region.
In the last 90 days, 2 listings have come on the market, which means office spaces might be leasing quickly. You'll want to be prepared to make an offer immediately. There aren't many listings below 2,000 square feet on the market, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 2,500 sqft. Most buildings in this market are close to 2 stories. Most buildings in this region were built in 2002 and are Class A.