On average, listings lease in the $10's per square foot per year. The Post Falls region is going through a a boost in rates. In the last 3 months, the median rate went up $1 per sqft per year. That's a 5% rise in rent.
In the last 90 days, 5 listings have come on the market, which means leases might be going fast. You'll want to be prepared to make an offer immediately. There aren't many listings below 2,000 square feet available, so finding a space for a small business might be tough.
Even though the median size is 2,700 sqft, there are still 0 new listings below 2,000 sqft. Most buildings in this region are around 1 stories. Most buildings in this market were built in 1979 and are Class B.