Most listings are in the $20's per square foot per year. The Raleigh Hills submarket is seeing a a rise in rates. In the last 3 months, the median rate went up $21 per sqft per year.
Compared to the rest of the Greater Portland market, the Raleigh Hills region has less expensive rates, so you should have no trouble finding a great deal in this depreciated region.
In the last 90 days, 2 listings have been posted online, which means new listings are probably leasing quickly. You'll want to be prepared to make an offer immediately. About 50% of the office spaces in the Raleigh Hills 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 available, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 640 sqft. Most properties in this area are around 2 stories.