Most listings are in the $20's per square foot per year. The Webster Groves region is experiencing a a rise in rates. In the last 3 months, the median rate went up $25 per sqft per year.
In the last 90 days, 2 listings have come on the market, which means office spaces might be leasing quickly. You'll want to be prepared to tour spaces as quick as possible. About 300% of the available leases in the Webster Groves 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 2,900 sqft, there are still 0 listings below 2,000 sqft. Most properties in this area are around 2 stories. Most buildings in this area were built in 1960 and are Class C.