The typical asking rate per listing is in the $20's per square foot per year. The Spokane Valley submarket is seeing a a boost in rates. In the last 3 months, the median rate increased $3 per sqft per year. That's a 14% rise in rent.
In the last 90 days, 22 listings have been posted online, which means leases are probably going fast. You'll want to be prepared to tour spaces as quick as possible. 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 1,930 sqft. Most buildings in this region are close to 2 stories. Most buildings in this market were built in 1980 and are Class B.