The typical asking rate per listing is in the $10's per square foot per year. The Linn County region is experiencing a decrease in rates. In the last 3 months, the median rate decreased $1 per sqft per year. That's a 3% decline in rent.
In the last 90 days, 21 listings have been made available, which means new listings most likley are leasing quickly. You'll want to be prepared to make an offer immediately. About 5% of the listings in the Linn County are subleases, so you will probably need to consider the implications of signing a direct lease with the building. 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 1,670 sqft. Most properties in this region are around 4 floors. Most buildings in this market were built in 1976 and are Class A.