Most listings are in the $20's per square foot per year. The Missouri region is experiencing a a rise in rates. In the last 3 months, the median rate went up $2 per sqft per year. That's a 9% increase in rent.
In the last 90 days, 1855 listings have been listed, so you'll want to check back regularly for new listings. About 47% of the available leases in the Missouri 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 available, so finding a space for a small business might be tough.
Even though the median size is 2,550 sqft, there are still 0 office spaces below 2,000 sqft. Most properties in this market are around 2 stories. Most buildings in this area were built in 1983 and are Class B.