Most listings are in the $20's per square foot per year. The Spokane submarket is experiencing a an increase in rates. In the last 3 months, the median rate went up $3 per sqft per year. That's a 12% increase in rent.
In the last 90 days, 114 listings have come on the market, so you'll want to check back regularly for new listings. About 53% of the available leases in the Spokane 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.
The standard measurement for office space in this area is around 1,640 sqft. Most buildings in this market are around 2 stories. Most buildings in this area were built in 1966 and are Class B.