The typical asking rate per listing is in the $20's per square foot per year. The St. Louis County region is seeing a decrease in rates. In the last 3 months, the median rate decreased $3 per sqft per year. That's a 10% decline in rent.
In the last 90 days, 72 listings have been made available, so you'll want to check back regularly for new listings. About 8% of the available space in the St. Louis County 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.
Even though the median size is 2,600 sqft, there are still 0 listings below 2,000 sqft. Most properties in this area are close to 3 stories. Most buildings in this region were built in 1950 and are Class A.