On average, listings lease in the $10's per square foot per year. The North Salt Lake region is going through a an increase in rates. In the last 3 months, the median rate rose $15 per sqft per year.
In the last 90 days, 2 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 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 1,500 sqft. Most properties in this area are approximately 2 floors. Most buildings in this area were built in 1992 and are Class B.