Most listings are in the $10's per square foot per year. The Mendota Heights submarket is going through a decline in rates. In the last 3 months, the median rate fell $1 per sqft per year. That's a 4% decrease in rent.
In the last 90 days, 4 listings have been made available, which means new availabilities are probably going fast. You'll want to be prepared to make an offer immediately. About 25% of the available leases in the Mendota Heights 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 8,070 sqft, there are still 0 leases below 2,000 sqft. Most properties in this region are around 2 floors. Most buildings in this market were built in 1993 and are Class B.