Most listings are in the $10's per square foot per year. The North Salt Lake submarket is experiencing a a boost in rates. In the last 3 months, the median rate increased $2 per sqft per year. That's a 16% rise in rent.
In the last 90 days, 6 listings have come on the market, which means leases most likley are 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.
The standard measurement for office space in this area is around 1,690 sqft. Most buildings in this region are approximately 2 floors. Most buildings in this area were built in 1992 and are Class B.