Most listings are in the $20's per square foot per year. The St. Charles County submarket is going through a an increase in rates. In the last 3 months, the median rate rose $24 per sqft per year.
In the last 90 days, 113 listings have been made available, so you'll want to check back regularly for new listings. About 49% of the listings in the St. Charles County are subleases, so you might be able to sign a shorter term by taking over a previous lease. There aren't many listings below 2,000 square feet on the market, so finding a space for a small business might be tough.
Even though the median size is 2,700 sqft, there are still 0 leases below 2,000 sqft. Most buildings in this region are close to 1 floors. Most buildings in this market were built in 1999 and are Class B.