Most listings are in the $10's per square foot per year. The Kootenai County region is seeing a an increase in rates. In the last 3 months, the median rate rose $0 per sqft per year. That's a 2% increase in rent.
In the last 90 days, 34 listings have been made available, which means listings are probably going fast. You'll want to be prepared to make an offer immediately. About 212% of the office spaces in the Kootenai County 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 available, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,200 sqft. Most buildings in this area are around 1 stories. Most buildings in this market were built in 1980 and are Class B.