Most listings are in the $30's per square foot per year. The West Linn submarket is going through a a boost in rates. In the last 3 months, the median rate rose $40 per sqft per year.
Compared to the rest of the Greater Portland market, the West Linn submarket has greater rates, and you'll need to make a great offer to be in this hot region.
In the last 90 days, 3 listings have been listed, which means spaces might be leasing quickly. You'll want to be prepared to make an offer immediately. About 300% of the available leases in the West Linn are subleases, so you might be able to snag a great spot on a short term. There aren't many listings below 2,000 square feet posted, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,350 sqft. Most buildings in this region were built in 2006 and are Class A.