On average, listings lease in the $20's per square foot per year. The St. Peters submarket is going through a decline in rates. In the last 3 months, the median rate fell $2 per sqft per year. That's a 10% decline in rent.
In the last 90 days, 28 listings have been listed, which means spaces are probably going fast. You'll want to be prepared to tour spaces as quick as possible. There aren't many listings below 2,000 square feet available, so finding a space for a small business might be tough.
Even though the median size is 3,300 sqft, there are still 0 new listings below 2,000 sqft. Most buildings in this area are close to 1 floors. Most buildings in this market were built in 1999 and are Class B.