Most listings are in the $40's per square foot per year. The Lake Oswego region is going through a a rise in rates. In the last 3 months, the median rate rose $13 per sqft per year. That's a 42% rise in rent.
Compared to the rest of the Greater Portland market, the Lake Oswego submarket has more expensive rates, and you'll have to negotiate above asking rent to be in this hot region.
In the last 90 days, 16 listings have come on the market, which means new availabilities might be going fast. You'll want to be prepared to tour spaces as quick as possible. About 113% of the available space in the Lake Oswego are subleases, so you might be able to sign a shorter term by taking over a previous lease. There aren't many listings below 2,000 square feet posted, so finding a space for a small business might be tough.
Even though the median size is 2,800 sqft, there are still 0 new availabilities below 2,000 sqft. Most properties in this area are around 4 floors. Most buildings in this region were built in 1988 and are Class A.