On average, listings lease in the $30's per square foot per year. The O'Fallon submarket is experiencing a an increase in rates. In the last 3 months, the median rate rose $37 per sqft per year.
In the last 90 days, 9 listings have been posted online, which means spaces are probably leasing quickly. You'll want to be prepared to tour spaces as quick as possible. About 178% of the office spaces in the O'Fallon are subleases, so you might be able to snag a great spot on a short term. 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 3,020 sqft, there are still 0 listings below 2,000 sqft. Most properties in this region are around 1 floors. Most buildings in this market were built in 1999 and are Class B.