The typical asking rate per listing is in the $10's per square foot per year. The Spokane County region is seeing a a rise in rates. In the last 3 months, the median rate increased $0 per sqft per year. That's a 1% increase in rent.
In the last 90 days, 177 listings have been made available, so you'll want to check back regularly for new listings. About 3% of the listings in the Spokane County are subleases, so you will probably have to focus your search on direct office leases. 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 1,900 sqft. Most properties in this area are close to 2 stories. Most buildings in this market were built in 1977 and are Class B.