The typical asking rate per listing is in the $20's per square foot per year. The Des Peres submarket is seeing a a rise in rates. In the last 3 months, the median rate went up $24 per sqft per year. That's a Inf% rise in rent.
In the last 90 days, 4 listings have been made available, which means new listings most likley are going fast. You'll want to be prepared to make an offer immediately. About 50% of the available leases in the Des Peres are subleases, so you might be able to find a shorter term or below market rent. 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 2,790 sqft, there are still 0 listings below 2,000 sqft. Most properties in this market are approximately 2 stories. Most buildings in this market were built in 1987 and are Class A.