Most listings are in the $10's per square foot per year. The Spokane County submarket is seeing a a rise in rates. In the last 3 months, the median rate went up $0 per sqft per year. That's a 1% increase in rent.
In the last 90 days, 177 listings have been posted online, so you'll want to check back regularly for new listings. About 3% of the office spaces in the Spokane County are subleases, so you will probably have to consider a longer term lease. 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 1,900 sqft. Most buildings in this region are around 2 stories. Most buildings in this market were built in 1977 and are Class B.