The typical asking rate per listing is in the $20's per square foot per year. The Raleigh Hills region is going through a an increase in rates. In the last 3 months, the median rate rose $2 per sqft per year. That's a 10% rise in rent.
Compared to the rest of the Greater Portland market, the Raleigh Hills region has smaller rates, so you should have no trouble finding a great deal in this discounted submarket.
In the last 90 days, 2 listings have been listed, which means new availabilities most likley are leasing quickly. You'll want to be prepared to make an offer immediately. 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 1,730 sqft. Most properties in this area are around 2 stories.