On average, listings lease in the $20's per square foot per year. The Raleigh Hills region is experiencing a an increase in rates. In the last 3 months, the median rate went up $2 per sqft per year. That's a 10% increase in rent.
Compared to the rest of the Greater Portland market, the Raleigh Hills submarket has lower rates, so you should have no trouble finding a great deal in this depreciated region.
In the last 90 days, 2 listings have been made available, which means leases are probably leasing quickly. You'll want to be prepared to tour spaces as quick as possible. 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 1,730 sqft. Most properties in this region are approximately 2 stories.