Most listings are in the $10's per square foot per year. The O'Fallon region is seeing a decrease in rates. In the last 3 months, the median rate decreased $6 per sqft per year. That's a 24% decline in rent.
In the last 90 days, 22 listings have been posted online, which means listings might be leasing quickly. You'll want to be prepared to tour spaces as quick as possible. There aren't many listings below 2,000 square feet on the market, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,500 sqft. Most properties in this area are approximately 1 floors. Most buildings in this area were built in 2001 and are Class A.