Most listings are in the $10's per square foot per year. The St. Paul region is going through a decline in rates. In the last 3 months, the median rate fell $1 per sqft per year. That's a 6% decrease in rent.
In the last 90 days, 136 listings have been posted online, so you'll want to check back regularly for new listings. About 1% of the listings in the St. Paul are subleases, so you will probably have to consider a longer term lease. There aren't many listings below 2,000 square feet posted, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 2,150 sqft. Most properties in this region are approximately 2 stories. Most buildings in this market were built in 1966 and are Class B.