Most listings are in the $20's per square foot per year. The Butte region is going through a an increase in rates. In the last 3 months, the median rate went up $2 per sqft per year. That's a 9% rise in rent.
In the last 90 days, 6 listings have been listed, which means new availabilities might be going fast. You'll want to be prepared to make an offer immediately. About 17% of the available space in the Butte 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.
Even though the median size is 3,850 sqft, there are still 0 office spaces below 2,000 sqft. Most buildings in this region are close to 0 floors. Most buildings in this area were built in 1979 and are Class A.