Most listings are in the $10's per square foot per year. The Post Falls submarket is seeing a a boost in rates. In the last 3 months, the median rate rose $3 per sqft per year. That's a 20% rise in rent.
In the last 90 days, 5 listings have been made available, which means new listings most likley are leasing quickly. You'll want to be prepared to make an offer immediately. About 360% of the office spaces in the Post Falls are subleases, so you might be able to snag a great spot on a short term. There aren't many listings below 2,000 square feet on the market, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,850 sqft. Most buildings in this area are close to 1 stories. Most buildings in this region were built in 1986 and are Class A.