On average, listings lease in the $30's per square foot per year. The Fairbanks North Star Borough region is going through a a boost in rates. In the last 3 months, the median rate increased $4 per sqft per year. That's a 13% increase in rent.
In the last 90 days, 2 listings have been posted online, which means spaces most likley are going fast. You'll want to be prepared to make an offer immediately. About 150% of the available leases in the Fairbanks North Star Borough are subleases, so you might be able to find a shorter term or below market rent. There aren't many listings below 2,000 square feet posted, so finding a space for a small business might be tough.
Even though the median size is 8,000 sqft, there are still 0 listings below 2,000 sqft. Most properties in this market are around 2 stories. Most buildings in this area were built in 1985 and are Class A.